NDLI: Cloud Point Extraction With Triton X-114 for Separation of Metsulfuron-Methyl, Chlorsulfuron, and Bensulfuron-Methyl From Water, Soil, and Rice and Analysis by High-Performance Liquid Chromatography

Content Provider	Springer Nature Link
Author	Wu, Yan Jiao Fu, Xu Wei Yang, Hong
Copyright Year	2010
Abstract	A new and efficient analytic methodology based on cloud point extraction (CPE) was developed for determination of pesticide residues of metsulfuron-methyl (MSM), chlorsulfuron (CS), and bensulfuron-methyl (BSM) in water, soil, and rice grain by high-performance liquid chromatography (HPLC). Multiple experimental conditions that affected CPE efficiency―including surfactant type and concentration, equilibration temperature and duration, ionic strength, and solution pH were identified. CPE conditions were optimized as follows: 1.5% Triton X-114 (w/v), 12% Na2SO4 (w/v) solution (pH 2.0), and heat-assisted at 50°C for 15 min. The calibration curves for all analytes were linear, ranging from 0.05 to 4.0 mg L−1, with the correlation coefficients >0.9995 by HPLC-ultraviolet detector and were linear, ranging from 0.004 to 2.0 mg L−1, with correlation coefficients >0.9983 by CPE-HPLC. The average recoveries at the three spiked levels using CPE ranged from 86.0% to 94.5% for water samples with relative SDs (RSDs) of 0.4% to approximately 7.8%; from 85.6% to 94.8% for soil samples with RSDs of 1.2% to approximately 9.5%; and from 81.9% to 91.3% for rice samples with RSDs of 1.7% to approximately 5.8%. The proposed CPE-HPLC method can be successfully used to analyze MSM, CS, and BSM residues from contaminated water, soil, and rice grain samples.
Starting Page	359
Ending Page	367
Page Count	9
File Format	PDF
ISSN	00904341
Journal	Archives of Environmental Contamination and Toxicology
Volume Number	61
Issue Number	3
e-ISSN	14320703
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-12-03
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Environmental Chemistry Environmental Health Soil Science & Conservation Environmental Monitoring/Analysis Ecotoxicology Pollution
Content Type	Text
Resource Type	Article
Subject	Pollution Health, Toxicology and Mutagenesis Medicine Toxicology

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