Results 11 to 20 of about 209,682 (308)
Separation performance of PEG-linked calix[4]arene as stationary phase for capillary gas chromatography [PDF]
Química Nova, 2023 This work presented a new PEG modified calix[4]arene stationary phase (C4A-PEG-2PTSC) for gas chromatographic (GC) separations. The statically coated C4A-PEG-2PTSC column exhibited moderate polarity and column efficiency of 2224 plates m-1 determined by ...
Wei Zhang +8 more
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Analysis of α-lipoprotein cholesterol in 50 μl of plasma
Journal of Lipid Research, 1974 A micromethod for quantitation of α-lipoprotein cholesterol was devised for gas–liquid chromatography to minimize plasma sample size and facilitate lipid studies using capillary blood from children or small animals. α-Lipoprotein cholesterol was measured
R.F. Lutmer +7 more
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Determination of the chemical composition of tea by chromatographic methods: a review [PDF]
, 2015 Despite the fact that mankind has been drinking tea for more than 5000 years, its chemical composition has been studied only in recent decades. These studies are primarily carried out using chromatographic methods.
Combet, Emilie +3 more
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Rapid determination of methylmercury in fish tissues
Czech Journal of Food Sciences, 2006 The aim of the present study was to develop a rapid and inexpensive method for the determination of methylmercury in fish tissues based on GC/ECD instrumentation.
Petr Maršálek, Zdeňka Svobodová
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Recent developments in the rapid analysis of plants and tracking their bioactive constituents [PDF]
, 2009 Natural products chemistry has witnessed many new developments in the last 5 years like extractions with subcritical water and ionic liquids, LC/HRMS and LC/SPE/cryo-NMR, UHPLC, TLC/MS, MS-based preparative HPLC, comprehensive chromatography (GC × GC, LC
Beek, T.A., van +7 more
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Determination of lipid content and fatty acid representation in barley caryopses and malt.
Kvasný průmysl, 2009 The modern method of extraction on the fluidized bed was optimized for the determination of lipids in barley caryopses and malt. Representation of fatty acids in barley caryopsis and malt was determined from extracted lipids.
Zdeněk SVOBODA +4 more
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Compound-Specific δ^(34)S Analysis of Volatile Organics by Coupled GC/Multicollector-ICPMS [PDF]
, 2009 We have developed a highly sensitive and robust method for the analysis of δ^(34)S in individual organic compounds by coupled gas chromatography (GC) and multicollector inductively coupled plasma mass spectrometry (MC-ICPMS).
Adkins, Jess F. +2 more
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Journal of Lipid Research, 1983 Capillary gas-liquid chromatographic separation was studied for the complete set of the 26 theoretically possible isomers of mono-, di-, and trihydroxylated 5 beta-cholanic acids, which differ from one another in the number, position, and configuration ...
T Iida, F C Chang, T Matsumoto, T Tamura
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Quantum Cascade Laser Enabled Nano-liter Polymer Waveguide Sensor [PDF]
, 2012 To improve the Mid-Infrared (IR) chemical sensing capabilities in liquids and gases, a polymer based waveguide that has 100% interaction with Quantum Cascade (QC) laser field is proposed and demonstrated.
Deev, Andrei, Wu, Sheng
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Nature Communications, 2016 Porous materials can be used in columns for gas separation applications. Here, Yan and co-workers from a bottom-up method have produced chiral covalent organic frameworks and from an in situ strategy formed capillary columns for chiral gas chromatography.
Hai-Long Qian +2 more
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