Argentation Chromatography

2016 ◽  
Author(s):  
J. Beare-Rogers ◽  
A. Dieffenbacher ◽  
J. V. Holm
Keyword(s):  
Argentation Chromatography

Recognition mechanism of aromatic derivatives resolved by argentation chromatography: The driving role played by substituent groups

2018 ◽  
Vol 1019 ◽  
pp. 135-141 ◽  
Author(s):  
Sergio Menta ◽  
Alessia Ciogli ◽  
Claudio Villani ◽  
Francesco Gasparrini ◽  
Marco Pierini
Keyword(s):  
Recognition Mechanism ◽  
Argentation Chromatography

Resolution of molecular species of intact serine and ethanolamine phosphatides by argentation chromatography of their trifluoroacetamides

Lipids ◽  
1977 ◽  
Vol 12 (7) ◽  
pp. 529-537 ◽  
Author(s):  
S. K. F. Yeung ◽  
A. Kuksis ◽  
L. Marai ◽  
J. J. Myher
Keyword(s):  
Molecular Species ◽  
Argentation Chromatography

Mixed Substrates: trans-and cis -[1-14C]Monounsaturated Fatty Acids with a Fairly Uniform Distribution of Positional Isomers

1978 ◽  
Vol 33 (9-10) ◽  
pp. 629-633 ◽  
Author(s):  
Ingolf Richter ◽  
Kumar D. Mukherjee ◽  
Nikolaus Weber
Keyword(s):  
Fatty Acids ◽  
Uniform Distribution ◽  
Catalytic Hydrogenation ◽  
Methyl Esters ◽  
Monounsaturated Fatty Acids ◽  
Positional Isomers ◽  
Mixed Substrates ◽  
Argentation Chromatography ◽  
Biochemical Studies ◽  
Hydrolysis Of

Abstract Simple methods are described for the preparation of trans-[1-14C]monounsaturated fatty acids and cis -[1-14C]monounsaturated fatty acids, each with a fairly uniform distribution of positional isomers, which can serve as mixed substrates in biochemical studies. Methyl trans- [1-14C] octadecenoates and methyl trans-[1-14C] eicosenoates are prepared by partial catalytic hydrogenation of methyl [1-14C] linolenate and methyl [1-14C] arachidonate, respectively, follow ed by argentation chromatography of the partially hydrogenated products. Methyl trans-[1-14C] octadecenoates and methyl trans-[1-14C] eicosenoates, thus obtained, yield the corresponding methyl cis-[1-14C] octadecenoates and methyl cis-[1-14C] eicosenoates, respectively, after trans-cis equilibration and argentation chromatography. Hydrolysis of each of these methyl esters yields the fatty acids.

Quantitation of trans fatty acids in milk fat using spectroscopic and chromatographic methods

1994 ◽  
Vol 61 (4) ◽  
pp. 517-527 ◽  
Author(s):  
Franz Ulberth ◽  
Monika Henninger
Keyword(s):  
Fatty Acids ◽  
Gas Chromatography ◽  
Milk Fat ◽  
Trans Fatty Acids ◽  
Methyl Esters ◽  
Oxidative Degradation ◽  
Subtraction Technique ◽  
Argentation Chromatography ◽  
Ruminant Animals ◽  
Octadecadienoic Acids

SummaryTrans fatty acids (TFA) formed during biohydrogenation by ruminant animals were quantified in cows' milk fat by means of Fourier transform i.r. (FTIR) spectroscopy. When samples were analysed as the derived methyl esters, a spectral subtraction technique resulted in TFA values that were not biased by the unspecific absorption of intact triacylglycerols or influenced by the shape of the trans band. Austrian milk fat samples contained 20–50 g TFA/kg. Results obtained by analysis of TFA as triacylglycerols compared favourably with those obtained by using methyl esters. The findings of the FTIR method were further substantiated by applying argentation chromatography in combination with capillary gas chromatography to the same set of samples. Besides trans monoenoic acids, non-methylene interrupted cis, trans octadecadienoic acids contributed significantly to the total trans content. Two novel TFA, trans-11, cis-15 octadecadienoic and cis-9, trans-13 octadecadienoic acids, were identified in milk fat by means of their retention behaviour on argentation chromatography and gas chromatography as well as by an oxidative degradation procedure.

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