Multiresidue analysis of neonicotinoids by solid-phase extraction technique using high-performance liquid chromatography

For routine monitoring of pesticides, a multiresidue analysis through solid-phase extraction technique and using high-performance liquid chromatography (HPLC) in cotton seed cake (CSC) has been developed. Extraction of fortified samples was carried out with aqueous acetone under vacuum. The concentr...

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Bibliographic Details
Published in:Environmental monitoring and assessment 2010-06, Vol.165 (1-4), p.573-576
Main Authors: Mohan, Chander, Kumar, Yogesh, Madan, Jyotsana, Saxena, Navneet
Format: Article
Language:English
Subjects:
Anabasine - analysis
Analysis
Animal, plant and microbial ecology
Applied ecology
Atmospheric Protection/Air Quality Control/Air Pollution
Biological and medical sciences
Chromatography
Chromatography, High Pressure Liquid - methods
Cotton
Cotton seed
Detection limits
Earth and Environmental Science
Ecology
Ecotoxicology
Ecotoxicology, biological effects of pollution
Environment
Environmental Management
Environmental monitoring
Fundamental and applied biological sciences. Psychology
General aspects
Gossypium
HPLC
India
Insecticides
Limit of Detection
Liquid chromatography
Monitoring/Environmental Analysis
Multiresidue
neonicotinoid insecticides
Pesticide residues
Pesticide Residues - analysis
Pesticides
Solid Phase Extraction - methods
SPE
Studies
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Summary:For routine monitoring of pesticides, a multiresidue analysis through solid-phase extraction technique and using high-performance liquid chromatography (HPLC) in cotton seed cake (CSC) has been developed. Extraction of fortified samples was carried out with aqueous acetone under vacuum. The concentrated extract was loaded onto the solid-phase extraction units, preconditioned with acetonitrile. The extraction units were then washed with hexane and finally eluted with acetonitrile. The pesticide residues were determined using a multiresidue method by reversed-phase HPLC. The average percentage recoveries were found to range between 65.47% and 110% at spiking levels of 10 to 40 mg/kg. The method developed shows a healthy rate of recovery and can successfully be utilized for the extraction and screening of neonicotinoid residues in CSC. The detection limits for imidacloprid, acetamiprid, and thiacloprid using this method were found to be 5, 10, and 20 mg/kg, respectively.
ISSN:0167-6369
1573-2959
DOI:10.1007/s10661-009-0968-8