Results 261 to 270 of about 133,066 (344)

Gel permeation chromatography of asymmetric proteins

Analytical Biochemistry, 1982
Abstract The gel permeation chromatographic behavior of three asymmetric proteins—collagen, fibrinogen, and the prolate ellipsoid lysozyme—was investigated using a variety of gel and high-performance liquid chromatographic media of various pore sizes and a wide range of flow rates.
Stephen C. Meredith, Gene R. Nathans
openaire   +3 more sources

Development of multiresidue analysis for twenty phthalate esters in edible vegetable oils by microwave-assisted extraction-gel permeation chromatography-solid phase extraction-gas chromatography-tandem mass spectrometry.

Journal of Agricultural and Food Chemistry, 2012
A novel multiresidue analysis method is developed for the determination of twenty phthalate esters at the μg/kg level in edible vegetable oils by microwave-assisted extraction-gel permeation chromatography-solid phase extraction-high resolution gas ...
Hanwen Sun, Yanlei Yang, Hui Li, Jingxuan Zhang, Na Sun   +4 more
semanticscholar   +1 more source

Determination of 49 organophosphorus pesticide residues and their metabolites in fish, egg, and milk by dual gas chromatography-dual pulse flame photometric detection with gel permeation chromatography cleanup.

Journal of Agricultural and Food Chemistry, 2012
A new method for the quantitative determination of 49 kinds of organophosphorus pesticide residues and their metabolites in fish, egg, and milk by dual gas chromatography-dual pulse flame photometric detection was developed.
Lixin Yang, Heli Li, Fangang Zeng, Yin-ping Liu, Ruifeng Li, Huijing Chen, Yun-feng Zhao, H. Miao, Yongning Wu   +8 more
semanticscholar   +1 more source

Study of matrix-induced effects in multi-residue determination of pesticides by online gel permeation chromatography-gas chromatography/mass spectrometry.

Rapid Communications in Mass Spectrometry, 2012
RATIONALE Multi-residue determination of pesticides in a complex matrix by online gel permeation chromatography-gas chromatography/mass spectrometry (GPC-GC/MS) is increasingly concerned for its high throughput, efficiency and accuracy.
Sha Yu, Xiao-min Xu
semanticscholar   +1 more source

Determination of seven glycidyl esters in edible oils by gel permeation chromatography extraction and liquid chromatography coupled to mass spectrometry detection.

Journal of Agricultural and Food Chemistry, 2011
A method based on a gel permeation chromatography (GPC) extraction procedure combined with an additional cleanup by solid-phase extraction (SPE) on silica gel and liquid chromatography-mass spectrometry (LC-MS) detection has been validated for the ...
M. Dubois, Adrienne Tarres, T. Goldmann, Guenter Loeffelmann, A. Donaubauer, W. Seefelder   +5 more
semanticscholar   +1 more source

Gel permeation chromatography of metallocenes

Journal of Organometallic Chemistry, 1976
Abstract The elution behaviour of ferrocene, ruthenocene and a series of substituted ferrocenes on a gel permeation chromatography support, cross-linked poly- (acryloyl morpholine) (Enzacryl® Gel), has been investigated. For most of the solutes an approximately linear relationship was obtained between logarithm molecular weight and the Wheaton ...
George Marr, G.J. Morgan, S.R. Holding, J.V. McLaren, R. Epton   +4 more
openaire   +2 more sources

DIFFERENTIAL GEL PERMEATION CHROMATOGRAPHY

Journal of Liquid Chromatography & Related Technologies, 2001
A new technique called Differential Gel Permeation Chromatography (DGPC), in which a reference solution is used as eluent and the solution to be analyzed as the injected solution, is proposed. It can detect minute differences between the reference solution and the analyzed solution.
David Thompson, You Xinkui, Qiu Qiaomei, Wang Qing-Guo, Cai Li-xing, Chen Junbo, Chen Zhi-hang   +6 more
openaire   +2 more sources

Preparative Gel Permeation Chromatography

Journal of Liquid Chromatography, 1985
Abstract This Chapter is devoted to a particular mode of liquid chromatography: Gel Permeation Chromatography (G.P.C.). The field of G.P.C. mainly concerns polymers but can also be applied to small organic molecules where, as well see later, the technique is more closely related to classical liquid chromatography.
openaire   +2 more sources

Gel permeation chromatography: A review

Journal of Materials Science, 1970
Gel permeation chromatography (GPC) enables the molecular weight distribution of a polymer sample to be determined in two or three hours. In the few years since its development it has revolutionised polymer characterisation. This review describes the essentials of the technique, its history and its relevance to polymer technology.
openaire   +2 more sources

Gel Permeation Chromatography

1992
Gel permeation chromatography (GPC), sometimes referred to as gel filtration chromatography (GFC) or size exclusion chromatography (SEC), entails the chromatographic fractionation of macromolecules according to molecular size.
openaire   +2 more sources