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Determination of herbicides in soil samples by gas chromatography: optimization by the simplex method.

Authors
Type
Published Article
Journal
Talanta
0039-9140
Publisher
Elsevier
Publication Date
Volume
53
Issue
2
Pages
367–377
Identifiers
PMID: 18968122
Source
Medline

Abstract

An analytic method for the determination of phenoxy acid herbicides and 2,4-D esters in soil samples by GC-FID is described. The esterification reaction with MeOH and H(2)SO(4) as catalyst has been used, optimizing experimental variables by the 'Simplex method'. The recoveries in soil samples were between 76 and 97% with relative S.D.s between 4 and 7% (n=4) at level of concentration of 5 and 10 mug ml(-1) for phenoxy acids and 2,4-D esters, respectively.

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