TITLE

Improvement of sensitivity in the determination of organochlorine pesticides using a PSS injector with GC-ECD

AUTHOR(S)
Concha-Graña, E.; Turnes-Carou, M.I.; Muniategui-Lorenzo, S.; López-Mahía, P.; Fernández-Fernández, E.; Prada-Rodríguez, D.
PUB. DATE
August 2004
SOURCE
Analytical & Bioanalytical Chemistry;Aug2004, Vol. 379 Issue 7/8, p1120
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper describes the optimisation of a PSS injector in a gas chromatograph with a programmed pneumatic control (PPC) for the determination of 21 organochlorine pesticides. The injection of high volumes of sample (20 µl) improves the detection limits and allows a reduction in the amount of sample processed. The injection conditions were selected by a Plackett-Burman design followed by a central composite design. The LODs obtained in the optimum conditions were compared with those obtained with splitless/ECD. Finally, the method was successfully applied to the analysis of a leachate and vegetable samples.
ACCESSION #
14281859

 

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