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Validation of a QuEChERS-based gas chromatographic method for analysis of pesticide residues in Cassia angustifolia (senna)

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Title Validation of a QuEChERS-based gas chromatographic method for analysis of pesticide residues in Cassia angustifolia (senna)
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Creator Vandana Tripathy, Ajoy Saha, Dilipkumar J Patel, BB Basak, Paresh G Shah, Jitendra Kumar
 
Subject Gas chromatograph, organochlorine, organophosphorus, pesticides residues, senna, QuEChERS
 
Description Not Available
A simple multi-residue method based on modified QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) approach was established for the determination of 17 organochlorine (OC), 15 organophosphorous (OP) and 7 synthetic pyrethroid (SP) pesticides in an economically important medicinal plant of India, Senna (Cassia angustifolia), by gas chromatography coupled to electron capture and flame thermionic detectors (GC/ECD/FTD) and confirmation of residues was done on gas chromatograph coupled with mass spectrometry (GC-MS). The developed method was validated by testing the following parameters: linearity, limit of detection (LOD), limit of quantification (LOQ), matrix effect, accuracy–precision and measurement uncertainty; the validation study clearly demonstrated the suitability of the method for its intended application. All pesticides showed good linearity in the range 0.01–1.0 μg mL−1 for OCs and OPs and 0.05–2.5 μg mL−1 for SPs with correlation coefficients higher than 0.98. The method gave good recoveries for most of the pesticides (70–120%) with intra-day and inter-day precision < 20% in most of the cases. The limits of detection varied from 0.003 to 0.03 mg kg−1, and the LOQs were determined as 0.01-0.049 mg kg−1. The expanded uncertainties were
ICAR
 
Date 2020-08-08T04:55:04Z
2020-08-08T04:55:04Z
2016-08-02
 
Type Research Paper
 
Identifier Vandana Tripathy, Ajoy Saha, Dilipkumar J. Patel, B. B. Basak, Paresh G. Shah & Jitendra Kumar (2016) Validation of a QuEChERS-based gas chromatographic method for analysis of pesticide residues in Cassia angustifolia (senna), Journal of Environmental Science and Health, Part B, 51:8, 508-518, DOI: 10.1080/03601234.2016.1170544
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http://krishi.icar.gov.in/jspui/handle/123456789/39112
 
Language English
 
Relation Not Available;
 
Publisher Taylor & Francis