Simultaneous Determination of Acetochlor and Propisochlor Residues in Corn and Soil by Solid Phase Extraction and Gas Chromatography with Electron Capture Detection

A sensitive and simple method for simultaneous analysis of acetochlor and propisochlor in corn and soil has been developed. Two herbicides were extracted from soil and corn matrices with methanol/water and acetone, respectively, followed by solid phase extraction (SPE) to remove co extractives, prio...

Full description

Saved in:
Bibliographic Details
Published in:Bulletin of environmental contamination and toxicology 2011, Vol.86 (1), p.95-100
Main Authors: Hu, J.-Y., Zhen, Z.-H., Deng, Z.-B.
Format: Article
Language:English
Subjects:
Acetamides - analysis
Acetamides - chemistry
Acetamides - isolation & purification
Acetochlor
Aquatic Pollution
Chromatography, Gas
Corn
Earth and Environmental Science
Ecotoxicology
Electrons
Environment
Environmental Chemistry
Environmental Health
Environmental Monitoring - methods
Gas chromatography
Gases
Herbicides - analysis
Herbicides - chemistry
Herbicides - isolation & purification
Mass spectrometry
Pesticides
Petroleum
Pollution
Sample preparation
Soil - chemistry
Soil Pollutants - analysis
Soil Pollutants - chemistry
Soil Pollutants - isolation & purification
Soil Science & Conservation
Soils
Solid Phase Extraction
Solids
Toluidines - analysis
Toluidines - chemistry
Toluidines - isolation & purification
Vegetables
Waste Water Technology
Water Management
Water Pollution Control
Zea mays - chemistry
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A sensitive and simple method for simultaneous analysis of acetochlor and propisochlor in corn and soil has been developed. Two herbicides were extracted from soil and corn matrices with methanol/water and acetone, respectively, followed by solid phase extraction (SPE) to remove co extractives, prior to analysis by gas chromatography with electron capture detection (GC-ECD). Primary secondary amine (PSA) SPE cartridges (500 mg, 3 mL) were used for sample preparation. The analytes from corn and soil matrices were eluted with 5 mL petroleum ether-acetic ether (95/5, v/v) and 3 mL petroleum ether-acetic ether (95/5, v/v), respectively. The recoveries of two pesticides ranged from 73.8% to 115.5% with relative standard deviations (RSD) less than 11.1% and sensitivity of 0.01 mg/kg, in agreement with directives for method validation in residue analysis. The method was successfully applied to determine the fate of acetochlor and propisochlor in real corn and soil samples. For acetochlor and propisochlor, the half-life times (t1/2) in soil was 5.541 and 6.074 days, respectively. No acetochlor and propisochlor residues (
ISSN:0007-4861
1432-0800
DOI:10.1007/s00128-010-0130-x