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Varian Medical varian gemini 2000 spectrometer
Varian Gemini 2000 Spectrometer, supplied by Varian Medical, used in various techniques. Bioz Stars score: 86/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/gemini+2000+spectrometer/nmr+spectra/pm42302652-234-12-12
Average 86 stars, based on 1 article reviews
varian gemini 2000 spectrometer - by Bioz Stars, 2026-09
86/100 stars

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Nuclear Magnetic Resonance:

Article Title: Increasing the Analytical Sensitivity by Oligonucleotides Modified with Para - and Ortho -Twisted Intercalating Nucleic Acids – TINA
Article Snippet: .. NMR spectra were measured on a Varian Gemini 2000 spectrometer at 300 MHz for 1 H using TMS (δ: 0.00) as an internal standard, at 75 MHz for 13 C using CDCl 3 (δ: 77.0) as an internal standard, and at 125.5 MHz using H 3 PO 4 (δ: 77.0) as an internal standard. .. Mass spectra of the synthesized compounds were determined on the Ionspec 4.7 Tesla HiResMALDI Ultima Fourier transform (FT) mass spectrometer (Ion Spec, Irvine, CA, USA) controlled by the OMEGA data system.

Article Title: Sulfhydrylated graphene-encapsulated iron nanoparticles directly aminated with polyethylenimine: a novel magnetic nanoplatform for bioconjugation of gamma globulins and polyclonal antibodies.
Article Snippet: This study presents for the first time the direct amination of graphene-encapsulated iron nanoparticles (GEINs) with polyethylenimine (PEI) via radical-type reaction.. This work describes the first example of a direct addition of N-centered radical species onto the graphene layer.. The pristine PEI and the PEI attached to GEINs have also been derivatized to introduce sulfhydryl functionalities.

Article Title: Dinuclear platinum(II) complexes with 1,5-nphe bridging ligand: Spectroscopic and molecular docking study of the interactions with N-acetylated L-methionylglycine and human serum albumin
Article Snippet: .. The 1H NMR spectra were recorded on a Varian Gemini 2000 spectrometer (1H at 200 MHz) using 5 mm NMR tubes, in D2O with TSP (sodium 3-(trimethylsilyl)propionate) as an internal reference. ..

Article Title: Silver(I) complexes with voriconazole as promising anti-Candida agents.
Article Snippet: KBr pellet technique was used for recording the IR spectra on a Perkin Elmer Spectrum 2 spectrometer over the M. Stanković et al. Journal of Inorganic Biochemistry 256 (2024) 112572 wavenumber range of 4000–450 cm− 1 (abbreviations used for the intensity of the IR bands: br = broad, vs = very strong, s = strong, m = medium and w = weak). .. The 1H NMR spectra of silver(I) complexes and vcz, dissolved in 0.6 mL of DMSO‐d6, were recorded using a Varian Gemini 2000 spectrometer at 200 MHz at room temperature, while the time stability of the complexes 1–3 in DMSO‐d6 solution during 9 days was followed on a Bruker Ascend 400 MHz spectrometer. .. The 1H-15N HMBC spectra were measured for the silver(I) complexes in DMSO‐d6 at room temperature on a Bruker Avance III 600 MHz spectrometer.

Article Title: A new C-methyl-flavone and other compounds from Myrcia guianensis
Article Snippet: This study reports the isolation of one new C-methyl-flavone (6,8-dimethyl-4,5-dihydroxy-3,7-dimethoxyflavone, 1), along with one C-methyl-flavone (sideroxylin, 2), one known C-methyl-flavonol (quercetin, 3), two C-methyl-flavonol glycosides [(quercitrin, 4) and (guaijaverin, 5)], one lignan (9,9-O-feruloyl-(− )-seco-isolaricinresinol, 6) and gallic acid (7) from Myrcia guianensis (Aubl.). DC.. The structural elucidation of compounds 1–7 was performed based on the detailed analysis of their NMR spectra and the comparison with the literature.

Article Title: Characterization, modes of interactions with DNA/BSA biomolecules and anti-tumor activity of newly synthesized dinuclear platinum(II) complexes with pyridazine bridging ligand.
Article Snippet: Platinum-based drugs are widely recognized efficient anti-tumor agents, but faced with multiple undesirable effects.. Here, four dinuclear platinum(II) complexes, [{Pt(1,2-pn)Cl}2(μ-pydz)]Cl2 (C1), [{Pt(ibn)Cl}2(μ-pydz)]Cl2 (C2), [{Pt(1,3-pn) Cl}2(μ-pydz)]Cl2 (C3) and [{Pt(1,3-pnd)Cl}2(μ-pydz)]Cl2 (C4), were designed (pydz is pyridazine, 1,2-pn is ( ±)-1,2-propylenediamine, ibn is 1,2-diamino-2-methylpropane, 1,3-pn is 1,3-propylenediamine, and 1,3-pnd is 1,3-pentanediamine).. Interactions and binding ability of C1–C4 complexes with calf thymus DNA (CT-DNA) has been monitored by viscosity measurements, UV–Vis, fluorescence emission spectroscopy and molecular docking.

Spectroscopy:

Article Title: Synthesis, antioxidant activity, and HPLC enantioseparation of aryloxyaminopropanols derived from naphthalen-2-ol
Article Snippet: .. 1H-NMR spectroscopy measurements were performed on a Varian Gemini 2000 spectrometer (Varian Inc., Palo Alto, CA, USA) with an operational frequency of 300 MHz for 1H-NMR and 75 MHz for 13C-NMR. ..

other:

Article Title: Cd 2+ -Specific Fluorescence Response of Methoxy-Substituted N , N -Bis(2-quinolylmethyl)-2-methoxyaniline Derivatives.
Article Snippet: The N3O1 tetradentate ligand, TriMeOBQMOA (N,N-bis(5,6,7-trimethoxy-2-quinolylmethyl)-2-methoxyaniline), was developed as a Cd2+-specific fluorescent sensor.. The structure of TriMeOBQMOA is half of TriMeOBAPTQ (N,N,N′,N′tetrakis(5,6,7-trimethoxy-2-quinolylmethyl)-1,2-bis(2-aminophenoxy)ethane), which is a tetrakisquinoline derivative of the wellknown calcium chelator BAPTA (1,2-bis(2-aminophenoxy)ethane-N,N,N′,N′-tetraacetic acid).. The fluorescent Cd2+ selectivity of TriMeOBAPTQ (IZn/ICd = 5.3% in the presence of 3 equiv of metal ions in MeOH−HEPES buffer (9:1)) comes from the formation of fluorescent dinuclear cadmium (M2L) and nonfluorescent OH-bridged dizinc ((μ-OH)M2L) complexes.



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