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Showing 13 to 24 of 25 entries
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[High resolution gas chromatography and its application in pharmaceutical analysis].

Yao xue xue bao = Acta pharmaceutica Sinica

Fang HJ.
PMID: 2099097
Yao Xue Xue Bao. 1990;25(11):869-80.

No abstract available.

Introduction to pyrolysis-capillary gas chromatography.

Journal of chromatography. A

Wampler TP.
PMID: 10377970
J Chromatogr A. 1999 May 21;842(1):207-20. doi: 10.1016/s0021-9673(98)00921-2.

By breaking large molecules into characteristic smaller fragments, analytical pyrolysis extends the use of gas chromatography to the analysis of polymeric materials, including natural polymers such as cellulose as well as synthetics. An understanding of the chemistry involved permits...

[Changes in the layout for delivering the gas carrier into the chromatograph].

Sudebno-meditsinskaia ekspertiza

Dobroriz AM.
PMID: 8848804
Sud Med Ekspert. 1995 Oct-Dec;38(4):33-4.

No abstract available.

[Application of derivative technique in the signal processing of gas chromatography].

Se pu = Chinese journal of chromatography

Sun H, Yan Z, Liu L, Sun J.
PMID: 12549161
Se Pu. 1999 Mar;17(2):175-7.

An application of derivative technique in the signal processing of gas chromatography(GC) is described. TCD's sensitivity of the derivative GC was 270 kV.L/kg, and its susceptibility was 0.3 microgram/L In comparison with the conventional GC, there was a 7-40...

Comprehensive two-dimensional gas chromatography: a hyphenated method with strong coupling between the two dimensions.

Journal of chromatography. A

Phillips JB, Beens J.
PMID: 10526795
J Chromatogr A. 1999 Sep 24;856(1):331-47. doi: 10.1016/s0021-9673(99)00815-8.

Comprehensive two-dimensional gas chromatography (GC x GC) provides a true orthogonal separation system. It is explained and demonstrated that it generates a peak capacity that is approximately equal to the product of the peak capacities of the two individual...

Deconvolution of overlapped peaks based on the exponentially modified Gaussian model in comprehensive two-dimensional gas chromatography.

Journal of chromatography. A

Kong H, Ye F, Lu X, Guo L, Tian J, Xu G.
PMID: 16130668
J Chromatogr A. 2005 Sep 09;1086(1):160-4. doi: 10.1016/j.chroma.2005.05.103.

Comprehensive two-dimensional gas chromatography (GC x GC) has attracted much attention for the analysis of complex samples. Even with a large peak capacity in GC x GC, peak overlapping is often met. In this paper, a new method was...

Multidimensional gas chromatography using a double cool-strand interface.

Journal of chromatography. A

Begnaud F, Chaintreau A.
PMID: 15865168
J Chromatogr A. 2005 Apr 15;1071(1):13-20. doi: 10.1016/j.chroma.2004.11.022.

Commercial interfaces for multidimensional gas chromatography (MDGC) are based either on a valve or a pneumatic switching between columns. Both exhibit significant drawbacks and only few suppliers exist. An extremely simple interface has been set up to overcome these...

Sample preparation for gas chromatographic determination of halogenated volatile organic compounds in environmental and biological samples.

Journal of chromatography. A

Jakubowska N, Zygmunt B, Polkowska Z, Zabiegała B, Namieśnik J.
PMID: 18790487
J Chromatogr A. 2009 Jan 16;1216(3):422-41. doi: 10.1016/j.chroma.2008.08.092. Epub 2008 Sep 02.

In this review, the wide spectrum of the techniques of isolation and/or preconcentration and final determination of halogenated volatile organic compounds (HVOCs) in water, air, soil, sediment and biological fluids are presented and discussed. The techniques discussed are solvent...

Multidimensional gas chromatography.

Advances in chromatography

Tranchida PQ, Sciarrone D, Mondello L.
PMID: 20166558
Adv Chromatogr. 2010;48:289-328.

No abstract available.

The use of two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-TOF-MS) for metabolomic analysis of polar metabolites.

Methods in molecular biology (Clifton, N.J.)

Ralston-Hooper K, Jannasch A, Adamec J, Sepúlveda M.
PMID: 21207292
Methods Mol Biol. 2011;708:205-11. doi: 10.1007/978-1-61737-985-7_12.

Metabolites produced by an organism can be quite extensive, and one analytical technique alone is not capable of their comprehensive detection and identification. The majority of environmental metabolomic studies have implemented proton nuclear magnetic resonance ((1)H-NMR) spectroscopy with little...

Deep Learning Based Prediction of Gas Chromatographic Retention Indices for a Wide Variety of Polar and Mid-Polar Liquid Stationary Phases.

International journal of molecular sciences

Matyushin DD, Sholokhova AY, Buryak AK.
PMID: 34502099
Int J Mol Sci. 2021 Aug 25;22(17). doi: 10.3390/ijms22179194.

Prediction of gas chromatographic retention indices based on compound structure is an important task for analytical chemistry. The predicted retention indices can be used as a reference in a mass spectrometry library search despite the fact that their accuracy...

Exploring the Fundamental Structures of Life: Non-Targeted, Chemical Analysis of Single Cells and Subcellular Structures.

Angewandte Chemie (International ed. in English)

Neumann EK, Do TD, Comi TJ, Sweedler JV.
PMID: 30500998
Angew Chem Int Ed Engl. 2019 Jul 08;58(28):9348-9364. doi: 10.1002/anie.201811951. Epub 2019 Apr 11.

Cells are a basic functional and structural unit of living organisms. Both unicellular communities and multicellular species produce an astonishing chemical diversity, enabling a wide range of divergent functions, yet each cell shares numerous aspects that are common to...

Showing 13 to 24 of 25 entries