نتایج جستجو برای: acetonitrile deproteinisation

تعداد نتایج: 7879  

Journal: :BioTechniques 2009
Paul Gaytán

Acetone is being proposed as the main washing solvent during automated synthesis of oligonucleotides to reduce acetonitrile usage in the assembly process and endure the impact of global acetonitrile shortage.

2008
Andria D. Harris Amy D. Baucom Jessica L. Brown Daniel S. Jones Craig A. Ogle

The title compound, C(12)H(8)BrN, was prepared as a starting material for a Suzuki cross-coupling reaction with a pinacol ester. The torsion angle about the ring-methylene C-C bond is 30.7 (3)°, such that the N atom is displaced by 1.174 (4) Å from the plane of the naphthalene ring system.

2011
Hoong-Kun Fun Ching Kheng Quah V. Sumangala D. Jagadeesh Prasad Boja Poojary

In the title compound, C(9)H(9)NO(2)S, the benzene ring and the acetonitrile group are approximately coplanar, with a C-C-C-C torsion angle of 1.1 (3)° between them. In the crystal, mol-ecules are linked via inter-molecular C-H⋯O hydrogen bonds into layers parallel to (001).

2016
Dennis Åsberg Marek Leśko Jörgen Samuelsson Anders Karlsson Krzysztof Kaczmarski Torgny Fornstedt

The adsorption of the proton-pump inhibitor omeprazole was investigated using RP-LC with chemometric models combined with adsorption isotherm modelling to study the effect of pH and type of organic modifier (i.e., acetonitrile or methanol). The chemometric approach revealed that omeprazole was tailing with methanol and fronting with acetonitrile along with increased fronting at higher pH. The i...

2016
Maria Doppler Bernhard Kluger Christoph Bueschl Christina Schneider Rudolf Krska Sylvie Delcambre Karsten Hiller Marc Lemmens Rainer Schuhmacher

The evaluation of extraction protocols for untargeted metabolomics approaches is still difficult. We have applied a novel stable isotope-assisted workflow for untargeted LC-HRMS-based plant metabolomics , which allows for the first time every detected feature to be considered for method evaluation. The efficiency and complementarity of commonly used extraction solvents, namely 1 + 3 (v/v) mixtu...

Journal: :Catalysts 2023

Acetonitrile is commonly used as an organic solvent and can also be important intermediate in synthesis. Its widespread use has led to the development of new methods for synthesis a variety compounds. In past decades, conversion reactions acetonitrile building block have become one most-attractive fields Especially field electrochemical conversions involving acetonitrile, due its good conductiv...

Journal: :Journal of Molecular Liquids 2021

The performance of three hydrophobic carboxylic acid based Deep Eutectic Solvents were evaluated for the extraction 1-butanol and acetonitrile from aqueous solution. To do so, phase diagrams five ternary systems {[DL-menthol: lauric acid] + water 1-butanol}, capric acetonitrile}, {[TBAMBr:capric 1-butanol} {[TBAMBr: measured at 298.15 K atmospheric pressure. Liquid-liquid equilibria data used t...

2013
P. F. Bernath J. J. Harrison

Introduction Conclusions References

Journal: :Drug discoveries & therapeutics 2009
W Jirawattanapong E Saifah C Patarapanich

A simple, selective and precise stabilityindicating HPLC method for determination of glabridin diacetate and dihexanoate prodrugs was developed, validated and applied to the enzymatic and chemical hydrolysis studies. The chromatographic separation was achieved on a reverse phase C18 (Thermo Hypersil-Keystone, 250 × 4.6 mm, 5 micron) column using the mixture of acetonitrile and water as mobile p...

Journal: :Analytical methods : advancing methods and applications 2011
Ankur M Desai Mark Andreae Douglas G Mullen Mark M Banaszak Holl James R Baker

Acetonitrile is a choice of solvent for almost all chromatographic separations. In recent years, researchers around the globe have faced an acetonitrile shortage that affected routine analytical operations. Researchers have tried to counter this shortage by applying many innovative solutions, including using ultra performance liquid chromatography (UPLC) columns that are shorter and smaller in ...

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