A Rapid Multiresidue Method for Determination of Pesticides in Fruits and Vegetables by Using Acetonitrile Extraction/Partitioning and Solid-Phase Extraction Column Cleanup-Reference-Cited by-同舟云学术

A Rapid Multiresidue Method for Determination of Pesticides in Fruits and Vegetables by Using Acetonitrile Extraction/Partitioning and Solid-Phase Extraction Column Cleanup

Published:2008-03-01 Issue:2 Volume:91 Page:422-438
ISSN:1060-3271
Container-title:Journal of AOAC INTERNATIONAL
language:en
Short-container-title:

Author:

Schenck Frank J¹,Brown Amy N²,Podhorniak Lynda V³,Parker Alesia¹,Reliford Michelle²,Wong Jon W⁴

Affiliation:

1. U.S. Food and Drug Administration, Southeast Regional Laboratory, Atlanta, GA 30309

2. Florida Department of Agriculture and Consumer Services, Chemical Residue Laboratory, Tallahassee, FL 32399

3. U.S. Environmental Protection Agency, Environmental Science Center, Ft Meade, MD 20755

4. U.S. Food and Drug Administration, Center for Food Safety and Applied Nutrition, College Park, MD 20740

Abstract

Abstract A modification of a rapid and inexpensive multiresidue method for determination of pesticides in fruits and vegetables (QuEChERS method) is presented. Samples were extracted by shaking with acetic acidacetonitrile (1 + 99). Water was removed by liquidliquid partitioning with magnesium sulfate and sodium acetate. The extract was subjected to a single solid-phase extraction (SPE) column cleanup, which produced a cleaner extract than did the dispersive SPE cleanup used in the original QuEChERS method. Recovery data were obtained for 316 pesticide residues, at levels ranging from 20 ppb to 1.0 ppm. Data were provided by 3 different laboratories. The modified QuEChERS method resulted in a 65 reduction in solvent usage, when compared with the traditional multiresidue methods previously used in our laboratories.

Publisher

Oxford University Press (OUP)

Subject

Pharmacology,Agronomy and Crop Science,Environmental Chemistry,Food Science,Analytical Chemistry

Link

http://academic.oup.com/jaoac/article-pdf/91/2/422/32443047/jaoac0422.pdf

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