Journal
BULLETIN OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume 88, Issue 6, Pages 858-862Publisher
SPRINGER
DOI: 10.1007/s00128-012-0582-2
Keywords
Automated sample clean-up; SPE-GPC-VAP system; ASE; Organochlorine pesticides; Sediment
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Funding
- National Natural Science Foundation of China [20877073]
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This paper describes an automated sample clean-up and fraction method using the SPE-GPC-VAP system for the determination of organochlorine pesticides (OCPs) in sediments. The method is based on a simultaneous extraction/clean-up step to reduce analysis time and solvent consumption. The parameters of a solid-phase extraction procedure, a gel permeation chromatography procedure and an AccuVap procedure were optimized to obtain maximum recovery of the target analytes with minimum presence of matrix-interfering compounds. The detection limits ranged from 0.03 to 0.13 ng g(-1) and the recovery ranged from 50.05% to 104.39%. The relative standard deviation was lower than 19.34% when OCPs concentrations in sediments ranged from 1.25 to 125 ng g(-1).
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