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Cited by 184

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Solid-phase extraction of pesticides from water: possible interferences from dissolved organic material

Johnson, Warren E., Fendinger, Nicholas J., Plimmer, Jack R.·1991·Analytical Chemistry

Abstract

A multiresidue analysis for trifluralin, simazine, atrazine, propazine, diazinon, parathion-methyl, alachlor, malathion, parathion, chlorpyrifos, pendimethalin, methidathion, and DEF in water that utilizes liquid-solid extraction (LSE) with octadecyl-bonded silica cartridges (C18BSCs) followed by gas chromatography/mass spectrometric analysis was developed. Recoveries of most pesticides were greater than 80% with C18BSCs from fortified water at concentration levels from about 1 to 500 ppb. Recoveries with C18BSCs, from an optically adjusted humic acid solution (10 ppm dissolved organic carbon) made to simulate a natural water with a high dissolved organic content, ranged from 29 to 153% and in general were lower than recoveries obtained from pure water. 14C-Labeled diazinon and parathion were recovered from the humic acid solution at levels of 57 and 68%, respectively, with C18BSCs; the remainder of the labeled pesticides was found in the cartridge eluents. Partition coefficients with human acid were calculated based on recovery of 14C-labeled pesticides from the C18BSCs.

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Metadata

Authors
Johnson, W. E., Fendinger, N. J., & Plimmer, J. R.
Venue
Analytical Chemistry
Published
1991-08-01
Volume
63
Issue
15
Pages
1510-1513
ISSN
  • 0003-2700 (ISSN-L)
  • 1520-6882
OpenAlex
W1978036912
Cited by
184
References
0
FWCI
22.20
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Solid-phase extraction of pesticides from water: possible interferences from dissolved organic material. https://app.cochat.ai/papers/10.1021/ac00015a003
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Johnson, W. E., Fendinger, N. J., & Plimmer, J. R. (1991). Solid-phase extraction of pesticides from water: possible interferences from dissolved organic material. Analytical Chemistry. https://doi.org/10.1021/ac00015a003

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