Use of reference pools to compare the qualitative and quantitative determination of polychlorinated biphenyls by packed and capillary gas chromatography with electron capture detection. Part 1. Serum

The Analyst ◽  
1990 ◽  
Vol 115 (3) ◽  
pp. 243 ◽  
Author(s):  
Virlyn W. Burse ◽  
Donald F. Groce ◽  
Margaret P. Korver ◽  
Patricia C. McClure ◽  
Susan L. Head ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Polychlorinated Biphenyls ◽  
Quantitative Determination ◽  
Electron Capture ◽  
Capillary Gas Chromatography ◽  
Electron Capture Detection ◽  
Qualitative And Quantitative

Determination of Type A and B Trichothecenes in Cereals by Gas Chromatography with Electron Capture Detection

1992 ◽  
Vol 75 (6) ◽  
pp. 1049-1053 ◽  
Author(s):  
Tord E Möller ◽  
Håkan F Gustavsson
Keyword(s):  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Electron Capture ◽  
Capillary Gas Chromatography ◽  
Quantitative Method ◽  
Type A ◽  
Electron Capture Detection

Abstract A quantitative method has been developed for determination of nonmacrocyclic trichothecenes in cereals. The mycotoxins are extracted with acetonitrile- ethyl acetate-water, and the extracts are quickly defatted with hexane and purified on a Sep- Pak Florisil cartridge. The trichothecenes are then silylated with Tri-Sil/TBT and quantitated by capillary gas chromatography with electron capture detection. High recoveries of 13 tested trichothecenes were achieved in experiments on wheat at the 250 μg/kg level. The method was also tested on barley, maize, oats, and rye with good results

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