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  • 99
    Thermo Fisher mass spectrometric
    Mass Spectrometric, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 75 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/mass spectrometric/product/Thermo Fisher
    Average 99 stars, based on 75 article reviews
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    80
    PerkinElmer spectrometric determination nexion 300d mass spectrometer
    Spectrometric Determination Nexion 300d Mass Spectrometer, supplied by PerkinElmer, used in various techniques. Bioz Stars score: 80/100, based on 6 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 80 stars, based on 6 article reviews
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    99
    SCIEX mass spectrometers
    Mass Spectrometers, supplied by SCIEX, used in various techniques. Bioz Stars score: 99/100, based on 75 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    82
    Advion mass spectrometers
    Mass Spectrometers, supplied by Advion, used in various techniques. Bioz Stars score: 82/100, based on 16 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 82 stars, based on 16 article reviews
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    99
    Thermo Fisher mass spectrometers
    Mass Spectrometers, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 1022 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Bruker Corporation mass spectrometers
    Mass Spectrometers, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 99/100, based on 299 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 99 stars, based on 299 article reviews
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    96
    Waters Corporation mass spectrometers
    Mass Spectrometers, supplied by Waters Corporation, used in various techniques. Bioz Stars score: 96/100, based on 37 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 96 stars, based on 37 article reviews
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    82
    Shimadzu Corporation mass spectrometers
    Mass Spectrometers, supplied by Shimadzu Corporation, used in various techniques. Bioz Stars score: 82/100, based on 2 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 82 stars, based on 2 article reviews
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    91
    Agilent technologies mass spectrometers
    Mass Spectrometers, supplied by Agilent technologies, used in various techniques. Bioz Stars score: 91/100, based on 185 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Thermo Fisher orbitrap mass spectrometer
    Development of a quantitative high-resolution mass spectrometry to directly measure intracellular 5-AZA-CdR and AZA. ( a ) Chemical structures of cytidine, deoxycytidine, AZA and 5-AZA-CdR. ( b ) Schematic depicting intracellular metabolism of AZA. Following cellular uptake and phosphorylation, ~80% of AZA gets incorporated into RNA by RNA polymerases. The remaining fraction is converted into 5-AZA-CdR by ribonucleotide reductase and incorporated into DNA by DNA polymerases. ( c ) Representative high-resolution <t>Orbitrap</t> mass spectra at RT of 0.98 min, showing clear baseline separation between 5-AZA-CdR, 15N-dC and 13C-dC (left, with respective m/z values) despite their identical chromatographic retention times (right). ( d ) Schematic depicting the optimised method incorporating steps to improve sensitivity of detection of intracellular 5-AZA-CdR and AZA by LC–MS.
    Orbitrap Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 1945 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 99 stars, based on 1945 article reviews
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    79
    JEOL auto mass mass spectrometer
    Development of a quantitative high-resolution mass spectrometry to directly measure intracellular 5-AZA-CdR and AZA. ( a ) Chemical structures of cytidine, deoxycytidine, AZA and 5-AZA-CdR. ( b ) Schematic depicting intracellular metabolism of AZA. Following cellular uptake and phosphorylation, ~80% of AZA gets incorporated into RNA by RNA polymerases. The remaining fraction is converted into 5-AZA-CdR by ribonucleotide reductase and incorporated into DNA by DNA polymerases. ( c ) Representative high-resolution <t>Orbitrap</t> mass spectra at RT of 0.98 min, showing clear baseline separation between 5-AZA-CdR, 15N-dC and 13C-dC (left, with respective m/z values) despite their identical chromatographic retention times (right). ( d ) Schematic depicting the optimised method incorporating steps to improve sensitivity of detection of intracellular 5-AZA-CdR and AZA by LC–MS.
    Auto Mass Mass Spectrometer, supplied by JEOL, used in various techniques. Bioz Stars score: 79/100, based on 10 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    76
    Bruker Corporation mass array mass spectrometer
    Development of a quantitative high-resolution mass spectrometry to directly measure intracellular 5-AZA-CdR and AZA. ( a ) Chemical structures of cytidine, deoxycytidine, AZA and 5-AZA-CdR. ( b ) Schematic depicting intracellular metabolism of AZA. Following cellular uptake and phosphorylation, ~80% of AZA gets incorporated into RNA by RNA polymerases. The remaining fraction is converted into 5-AZA-CdR by ribonucleotide reductase and incorporated into DNA by DNA polymerases. ( c ) Representative high-resolution <t>Orbitrap</t> mass spectra at RT of 0.98 min, showing clear baseline separation between 5-AZA-CdR, 15N-dC and 13C-dC (left, with respective m/z values) despite their identical chromatographic retention times (right). ( d ) Schematic depicting the optimised method incorporating steps to improve sensitivity of detection of intracellular 5-AZA-CdR and AZA by LC–MS.
    Mass Array Mass Spectrometer, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 76/100, based on 4 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 76 stars, based on 4 article reviews
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    99
    Thermo Fisher tribrid mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Tribrid Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 1067 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    91
    SCIEX mass spectometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Mass Spectometer, supplied by SCIEX, used in various techniques. Bioz Stars score: 91/100, based on 6 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Thermo Fisher process mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Process Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 4 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 99 stars, based on 4 article reviews
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    99
    Thermo Fisher q exactive mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Q Exactive Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 9548 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    84
    SCIEX mass spectrometrer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Mass Spectrometrer, supplied by SCIEX, used in various techniques. Bioz Stars score: 84/100, based on 4 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Thermo Fisher qexactive orbitrap mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Qexactive Orbitrap Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 302 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    87
    PerkinElmer quadrupole mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Quadrupole Mass Spectrometer, supplied by PerkinElmer, used in various techniques. Bioz Stars score: 87/100, based on 11 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Bruker Corporation microflex mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Microflex Mass Spectrometer, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 99/100, based on 151 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    88
    Thermo Fisher mat900xl mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Mat900xl Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 88/100, based on 48 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    87
    Bruker Corporation reflex mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Reflex Mass Spectrometer, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 87/100, based on 39 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 87 stars, based on 39 article reviews
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    90
    Bruker Corporation etd mass spectrometer
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Etd Mass Spectrometer, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 90/100, based on 31 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 90 stars, based on 31 article reviews
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    86
    Sequenom mass spectrometer system
    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The <t>Orbitrap</t> image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .
    Mass Spectrometer System, supplied by Sequenom, used in various techniques. Bioz Stars score: 86/100, based on 19 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 86 stars, based on 19 article reviews
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    94
    SCIEX api2000 mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    Api2000 Mass Spectrometer, supplied by SCIEX, used in various techniques. Bioz Stars score: 94/100, based on 38 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Bruker Corporation microtof mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    Microtof Mass Spectrometer, supplied by Bruker Corporation, used in various techniques. Bioz Stars score: 99/100, based on 661 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    SCIEX 4000qtrap mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    4000qtrap Mass Spectrometer, supplied by SCIEX, used in various techniques. Bioz Stars score: 99/100, based on 92 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    94
    MKS Instruments quadrupole mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    Quadrupole Mass Spectrometer, supplied by MKS Instruments, used in various techniques. Bioz Stars score: 94/100, based on 17 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Agilent technologies 5975b mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    5975b Mass Spectrometer, supplied by Agilent technologies, used in various techniques. Bioz Stars score: 99/100, based on 226 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    99
    Thermo Fisher fusion mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    Fusion Mass Spectrometer, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 288 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 99 stars, based on 288 article reviews
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    88
    PerkinElmer turbo mass spectrometer
    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an <t>API2000</t> mass spectrometer in negative ion mode. * p
    Turbo Mass Spectrometer, supplied by PerkinElmer, used in various techniques. Bioz Stars score: 88/100, based on 22 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Average 88 stars, based on 22 article reviews
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    Image Search Results


    Development of a quantitative high-resolution mass spectrometry to directly measure intracellular 5-AZA-CdR and AZA. ( a ) Chemical structures of cytidine, deoxycytidine, AZA and 5-AZA-CdR. ( b ) Schematic depicting intracellular metabolism of AZA. Following cellular uptake and phosphorylation, ~80% of AZA gets incorporated into RNA by RNA polymerases. The remaining fraction is converted into 5-AZA-CdR by ribonucleotide reductase and incorporated into DNA by DNA polymerases. ( c ) Representative high-resolution Orbitrap mass spectra at RT of 0.98 min, showing clear baseline separation between 5-AZA-CdR, 15N-dC and 13C-dC (left, with respective m/z values) despite their identical chromatographic retention times (right). ( d ) Schematic depicting the optimised method incorporating steps to improve sensitivity of detection of intracellular 5-AZA-CdR and AZA by LC–MS.

    Journal: Leukemia

    Article Title: AZA-MS: a novel multiparameter mass spectrometry method to determine the intracellular dynamics of azacitidine therapy in vivo

    doi: 10.1038/leu.2017.340

    Figure Lengend Snippet: Development of a quantitative high-resolution mass spectrometry to directly measure intracellular 5-AZA-CdR and AZA. ( a ) Chemical structures of cytidine, deoxycytidine, AZA and 5-AZA-CdR. ( b ) Schematic depicting intracellular metabolism of AZA. Following cellular uptake and phosphorylation, ~80% of AZA gets incorporated into RNA by RNA polymerases. The remaining fraction is converted into 5-AZA-CdR by ribonucleotide reductase and incorporated into DNA by DNA polymerases. ( c ) Representative high-resolution Orbitrap mass spectra at RT of 0.98 min, showing clear baseline separation between 5-AZA-CdR, 15N-dC and 13C-dC (left, with respective m/z values) despite their identical chromatographic retention times (right). ( d ) Schematic depicting the optimised method incorporating steps to improve sensitivity of detection of intracellular 5-AZA-CdR and AZA by LC–MS.

    Article Snippet: Mass spectrometry and data analysis LC–MS analysis was performed utilising an ultra-high-performance liquid chromatography system (Dionex u3000 system, Thermo Fisher Scientific) interfaced to an Orbitrap mass spectrometer (Q Exactive Plus, Thermo Fisher Scientific) using a heated electrospray interface operated in the positive ion mode.

    Techniques: Mass Spectrometry, Liquid Chromatography with Mass Spectroscopy

    MS spectra (mass range: m/z 200–1000) by Orbitrap and MS/MS spectra (parent ion: m/z 316.1, mass range: 297.0–299.0 and 240.0–242.0) by TSQ for blank paper substrates subject to different treatments. (a) untreated 31 ET paper,

    Journal: The Analyst

    Article Title: Quantitative Paper Spray Mass Spectrometry Analysis of Drugs of Abuse

    doi: 10.1039/c3an00934c

    Figure Lengend Snippet: MS spectra (mass range: m/z 200–1000) by Orbitrap and MS/MS spectra (parent ion: m/z 316.1, mass range: 297.0–299.0 and 240.0–242.0) by TSQ for blank paper substrates subject to different treatments. (a) untreated 31 ET paper,

    Article Snippet: The MS spectra were recorded using an Exactive Orbitrap mass spectrometer (Exactive, Thermo Scientific, CA).

    Techniques: Mass Spectrometry

    Workflow of TMT quantitative shotgun proteomic analysis. Proteins extracted from rice leaves were reduced, alkylased, precipitated and digested before being labelled with Tandem Mass Tags. Labelled samples were pooled, fractionated by SCX and then analysed on a Q Exactive Orbitrap mass spectrometer. Raw data generated from the mass spectrometer were processed using Proteome Discover v1.4 and Mascot. The search results were further analysed by the TMTPrePro software package.

    Journal: Data in Brief

    Article Title: Label-free and isobaric tandem mass tag (TMT) multiplexed quantitative proteomic data of two contrasting rice cultivars exposed to drought stress and recovery

    doi: 10.1016/j.dib.2018.12.041

    Figure Lengend Snippet: Workflow of TMT quantitative shotgun proteomic analysis. Proteins extracted from rice leaves were reduced, alkylased, precipitated and digested before being labelled with Tandem Mass Tags. Labelled samples were pooled, fractionated by SCX and then analysed on a Q Exactive Orbitrap mass spectrometer. Raw data generated from the mass spectrometer were processed using Proteome Discover v1.4 and Mascot. The search results were further analysed by the TMTPrePro software package.

    Article Snippet: These fractions were desalted using C18 OMIX® tips (Agilent) and analysed on a Q Exactive Orbitrap mass spectrometer (Thermo Scientific) coupled to an EASY-nLC1000 (Thermo Scientific).

    Techniques: Mass Spectrometry, Generated, Software

    Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The Orbitrap image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .

    Journal: Scientific Reports

    Article Title: Proteome-wide acetylation dynamics in human cells

    doi: 10.1038/s41598-017-09918-3

    Figure Lengend Snippet: Metabolic Labeling and Workflow. ( A ) Glucose, acetate, fatty acids, and amino acids produce acetyl-CoA for use in acetylating cytoplasmic and nuclear proteins. The thicker arrows indicate that glucose contributes more to the production of acetyl-coA that subsequently acetylates proteins, compared to acetate. ( B ) The workflow consisted of growing HeLa cells in heavy-labeled media, collecting samples at eight time points, lysing the cells, digesting the proteins, enriching for acetylated peptides, and analyzing the peptides by mass spectrometry. The Orbitrap image is adapted from Thermo Fisher Scientific 56 . The cartoon cell matter and lab equipment were slightly modified from Servier Medical Art 57 .

    Article Snippet: Acetylated peptides were then enriched using anti-acetyl-lysine antibodies and run on nano liquid chromatography coupled online with tandem mass spectrometry (nanoLC-MS/MS) on an Orbitrap Fusion mass spectrometer (Thermo Fisher Scientific), which allows for detection of isotope incorporation into acetylated proteins.

    Techniques: Labeling, Mass Spectrometry, Modification

    Targeted mass spectrometry analysis of MYO7A immunoaffinity purification from chick stereocilia. ( A – C ) Diagrams illustrating targeted analysis. ( A ) Peptides eluting from the nano-scale liquid chromatography (NanoLC) system are introduced into a Tribrid Fusion mass spectrometer by electrospray (Ion source). Monitored peptides (blue) are selected within the quadrupole mass analyzer, then are fragmented using higher-energy collisional dissociation (HCD). Fragment mass spectra (MS2) acquired from the Orbitrap analyzer are searched against a protein database to confirm the identity of the monitored peptide. ( B ) Robustly detected daughter ions (here y4, y6, and y7) can be monitored over time. ( C ) Each daughter ion is monitored over time; signal from all monitored daughter ions is summed and the time-summed intensity plot is integrated to determine the signal for the peptide of interest. ( D – K ) Targeted mass-spectrometry analysis of indicated proteins. Panels are: left, time-intensity plot summed over all daughter ions of indicated peptide (138-1 and control eluates); center, database-matched MS2 spectrum (138-1 eluate); right, integrated intensities for indicated peptides (mean ± SEM). ( D ) MYO7A. ( E ) MYO6. ( F ) GIPC3. ( G ) ANKRD24. ( H ) PDZD7. ( I ) ADGRV1. ( J ) USH1C. ( K ) USH1G. Key: C , control eluates; 7A, 138-1 eluates. Arrowhead indicates elution position for heavy-labeled peptide and region where MS2 spectra match to the indicated protein. Statistical tests used two-tailed Student’s t-test, with significance indicated in the figure as follows: *p

    Journal: eLife

    Article Title: PDZD7-MYO7A complex identified in enriched stereocilia membranes

    doi: 10.7554/eLife.18312

    Figure Lengend Snippet: Targeted mass spectrometry analysis of MYO7A immunoaffinity purification from chick stereocilia. ( A – C ) Diagrams illustrating targeted analysis. ( A ) Peptides eluting from the nano-scale liquid chromatography (NanoLC) system are introduced into a Tribrid Fusion mass spectrometer by electrospray (Ion source). Monitored peptides (blue) are selected within the quadrupole mass analyzer, then are fragmented using higher-energy collisional dissociation (HCD). Fragment mass spectra (MS2) acquired from the Orbitrap analyzer are searched against a protein database to confirm the identity of the monitored peptide. ( B ) Robustly detected daughter ions (here y4, y6, and y7) can be monitored over time. ( C ) Each daughter ion is monitored over time; signal from all monitored daughter ions is summed and the time-summed intensity plot is integrated to determine the signal for the peptide of interest. ( D – K ) Targeted mass-spectrometry analysis of indicated proteins. Panels are: left, time-intensity plot summed over all daughter ions of indicated peptide (138-1 and control eluates); center, database-matched MS2 spectrum (138-1 eluate); right, integrated intensities for indicated peptides (mean ± SEM). ( D ) MYO7A. ( E ) MYO6. ( F ) GIPC3. ( G ) ANKRD24. ( H ) PDZD7. ( I ) ADGRV1. ( J ) USH1C. ( K ) USH1G. Key: C , control eluates; 7A, 138-1 eluates. Arrowhead indicates elution position for heavy-labeled peptide and region where MS2 spectra match to the indicated protein. Statistical tests used two-tailed Student’s t-test, with significance indicated in the figure as follows: *p

    Article Snippet: Peptide samples were analyzed with an Orbitrap Fusion Tribrid mass spectrometer (Thermo Fisher Scientific, Waltham, MA) coupled to a Thermo/Dionex Ultimate 3000 Rapid Separation UPLC system and EasySpray nanosource.

    Techniques: Mass Spectrometry, Immunoaffinity Purification, Liquid Chromatography, Labeling, Two Tailed Test

    Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an API2000 mass spectrometer in negative ion mode. * p

    Journal: Biochemistry

    Article Title: Reduction of tetrathionate by mammalian thioredoxin reductase

    doi: 10.1021/acs.biochem.5b00620

    Figure Lengend Snippet: Direct Reduction of tetrathionate by TR1. A) The concentration of tetrathionate in the presence and absence of TR1. Sodium tetrathionate (2 mM) was incubated with or without TR1 for 1 hour. The reaction mixtures were diluted 1000 times, separated on a phenyl-hexyl column with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an API2000 mass spectrometer in negative ion mode. * p

    Article Snippet: The reaction mixtures were diluted 1000 fold, separated on a phenyl-hexyl column (Phenomenex, Luna 10 × 250 mm, 5 µm) with 70% methanol, 30% water, 0.1% acetic acid as the solvent system, and analyzed by Q1-MS on an API2000 mass spectrometer (AB Sciex) in negative ion mode.

    Techniques: Concentration Assay, Incubation, Mass Spectrometry