Automated on-line gel permeation chromatography-gas chromatography for the determination of organophosphorus pesticides in olive oil

1996 ◽  
Vol 750 (1-2) ◽  
pp. 275-286 ◽  
Author(s):  
Jolan J. Vreuls ◽  
Raoul J.J. Swen ◽  
Vincent P. Goudriaan ◽  
Mia A.T. Kerkhoff ◽  
Gijsbertus A. Jongenotter ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Olive Oil ◽  
Organophosphorus Pesticides ◽  
Gel Permeation Chromatography ◽  
Gel Permeation ◽  
On Line

scholarly journals Cleanup Procedure for Monitoring Chlorinated Compounds in Animal Feed and Crops

1998 ◽  
Vol 81 (3) ◽  
pp. 513-518 ◽  
Author(s):  
Mona Syhre ◽  
Gudrun Hanschmann ◽  
Ralf Heber
Keyword(s):  
Gas Chromatography ◽  
Silica Gel ◽  
Carbon Material ◽  
Animal Feed ◽  
Gel Permeation Chromatography ◽  
Electron Capture Detection ◽  
Chlorinated Pesticides ◽  
Gel Permeation ◽  
Cleanup Procedure

abstract A powerful cleanup procedure for determination of chlorinated pesticides and poly chlorinated biphenyls (PCBs) in difficult agricultural matrixes like feeds or crops was developed to eliminate the interferences in chromatograms obtained by gas chromatography with electron capture detection. The adsorption material used was ENVI-Carb, a graphitized nonporous carbon material. This procedure proved to be more reliable than the established cleanup procedure, which uses gel permeation chromatography and silica gel cartridges. Because ENVI-Carb cleanup delivers clear, colorless eluates with no interferences, chlorinated pesticides and PCBs may be detected at levels as low as 0.0004 mg/kg for monitoring purposes. Accuracy was validated through a series of recovery experiments.

Sign in / Sign up

Export Citation Format

Share Document