Quantitative determination of toxic mono- and non-ortho polychlorinated biphenyls in cod liver oil after selective liquid chromatographic separation

1995 ◽  
Vol 41 (9-10) ◽  
pp. 585-593 ◽  
Author(s):  
C. Natzeck ◽  
W. Vetter ◽  
B. Luckas ◽  
G. Moskopp ◽  
J. Buijten
Keyword(s):  
Polychlorinated Biphenyls ◽  
Quantitative Determination ◽  
Chromatographic Separation ◽  
Cod Liver Oil ◽  
Liquid Chromatographic Separation ◽  
Liquid Chromatographic

Quantitative Determination of Fixed Acids in Wines by Gas-Liquid Chromatographic Separation of Trimethylsilylated Derivatives

1967 ◽  
Vol 50 (2) ◽  
pp. 329-334 ◽  
Author(s):  
Richard L Brunelle ◽  
Robert L Schoeneman ◽  
Glenn E Martin
Keyword(s):  
Quantitative Determination ◽  
Chromatographic Separation ◽  
Simple Method ◽  
Lead Salts ◽  
Liquid Chromatographic Separation ◽  
Glass Column ◽  
Liquid Chromatographic ◽  
Derivatives Of ◽  
Tms Derivatives

Abstract A rapid and simple method was developed for gas-liquid chromatographic (GLC) separation of the trimethylsilylated (TMS) derivatives of the fixed acids present in wine. Acids were precipitated as lead salts to eliminate sugar interference. The TMS derivatives were completely separated on a 6' X 14" o.d. glass column of 3.8% SE-30 on Diatoport S (silanized support) and were measured by reacting the dried lead salts with trimethylchlorosilane and hexamethyldisilazanc in the presence of pyridine. This method permits the simultaneous determination in wine of several acids, such as succinic, malic, tartaric, and citric acids in ca 4 hours. Several other derivatives were observed in the chroniatograms but were not identified

Determination of Sulfite in Beer Based on Fluorescent Derivatives and Liquid Chromatographic Separation

2012 ◽  
Vol 70 (4) ◽  
pp. 296-302 ◽  
Author(s):  
Victor Abrahamsson ◽  
Signe Hoff ◽  
Nikoline J. Nielsen ◽  
Marianne N. Lund ◽  
Mogens L. Andersen
Keyword(s):  
Chromatographic Separation ◽  
Liquid Chromatographic Separation ◽  
Liquid Chromatographic ◽  
Fluorescent Derivatives
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