Analysis of trifluralin, methyl paraoxon, methyl parathion, fenvalerate and 2,4‐D dimethylamine in pond water using solid‐phase extraction

Swineford, Douglas M.; Belisle, Andre A.

doi:10.1002/etc.5620080602

Cited by 17 publications

(5 citation statements)

References 9 publications

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“…Compared to traditional extraction techniques such as solvent−solvent partitioning, solid-phase extraction uses only a marginal amount of organic solvents. Previous studies showed that synthetic pyrethroids in aqueous samples could be quantitatively recovered using columns packed with the C 8 or C 18 adsorbent ( − ). Our study indicates that good recoveries could also be obtained by passing samples through C 8 or C 18 membranes.…”

Section: Resultsmentioning

confidence: 99%

“…This method consumes relatively large quantities of solvents and is also labor intensive because of multiple extractions and concentration of extracts. Solid-phase extraction using C 8 or C 18 columns has been reported for recovering pyrethroids from water samples (7,(12)(13)(14). Compared to columns, solid-phase membranes allow rapid passing of large volume of samples, further shortening the time needed for extraction.…”

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confidence: 99%

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Recovery of Synthetic Pyrethroids in Water Samples during Storage and Extraction

Lee

Gan

Kabashima

2002

J. Agric. Food Chem.

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Monitoring for synthetic pyrethroids in surface water at the sub-parts per billion level requires reproducible sampling and analytical methods. We studied the recovery of bifenthrin, permethrin, and deltamethrin in water during storage in glass containers and extraction using solid-phase membranes. In solid-free water, the concentration of all compounds quickly decreased and then remained constant at 58-72% of the initial concentration, likely due to adsorption to the glass surface. The recovery was enhanced in runoff samples that contained suspended solids, which was attributed to the association of pesticides to the suspended solids. However, the greatest loss occurred when runoff samples were not agitated before extraction, and the loss was largely caused by the exclusion of the suspended solids from the aqueous phase. Nearly 100% extraction recoveries were obtained when C(8) or C(18) membranes were used for extracting runoff samples. Adsorption to glass surfaces and suspended solids can result in substantial underestimation of pyrethroid concentrations or biological activity and therefore should be considered when designing monitoring protocols.

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Section: Resultsmentioning

confidence: 99%

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confidence: 99%

Recovery of Synthetic Pyrethroids in Water Samples during Storage and Extraction

Lee

Gan

Kabashima

2002

J. Agric. Food Chem.

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“…To detect esfenvalerate in water samples at a sub parts per billion level, a rapid and efficient SPE procedure was developed. The C 18 column has been considered the primary choice for extracting nonpolar or semipolar pesticides including pyrethroids from natural water sources (Junk and Richard, 1988;Swineford and Belisle, 1989;Durhan et al, 1990). A recent study by Woin (1994) showed that C 8 sorbent is as effective as C 18 for pyrethroid extraction, showing very good recoveries (80-100%).…”

Section: Resultsmentioning

confidence: 99%

Development of an Immunoassay for the Pyrethroid Insecticide Esfenvalerate

Shan

Stoutamire

Wengatz

et al. 1999

J. Agric. Food Chem.

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A competitive enzyme-linked immunosorbent assay was developed for the detection of the pyrethroid insecticide esfenvalerate. Two haptens containing amine or propanoic acid groups on the terminal aromatic ring of the fenvalerate molecule were synthesized and coupled to carrier proteins as immunogens. Five antisera were produced and screened against eight different coating antigens. The assay that had the least interference and was the most sensitive for esfenvalerate was optimized and characterized. The I(50) for esfenvalerate was 30 +/- 6.2 microg/L, and the lower detection limit (LDL) was 3.0 +/- 1.8 microg/L. The assay was very selective. Other pyrethroid analogues and esfenvalerate metabolites tested did not cross-react significantly in this assay. To increase the sensitivity of the overall method, a C(18) sorbent-based solid-phase extraction (SPE) was used for water matrix. With this SPE step, the LDL of the overall method for esfenvalerate was 0.1 microg/L in water samples.

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“…Solid-phase extraction (SPE) has been extensively used to recover nonpolar organic chemicals from water (Hinkley and Bidleman, 1989;Loconto and Gaind, 1989;Swineford and Belisle, 1989). SPE technique provides high extraction efficiencies while reducing solvent usage and extraction time necessary for classical extraction methods such as liquid-solvent extractions.…”

Section: Introductionmentioning

confidence: 99%

Persistent organic pollutants in water and surface sediments of Taihu Lake, China and risk assessment

et al. 2003

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Analysis of trifluralin, methyl paraoxon, methyl parathion, fenvalerate and 2,4‐D dimethylamine in pond water using solid‐phase extraction

Cited by 17 publications

References 9 publications

Recovery of Synthetic Pyrethroids in Water Samples during Storage and Extraction

Recovery of Synthetic Pyrethroids in Water Samples during Storage and Extraction

Development of an Immunoassay for the Pyrethroid Insecticide Esfenvalerate

Persistent organic pollutants in water and surface sediments of Taihu Lake, China and risk assessment

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