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Validation of GC and GC-MS methodologies for analysis of fluopicolide and 2,6-dichlorobenzamide in vegetables and soil.
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View Archive Info| Field | Value | |
| Title |
Validation of GC and GC-MS methodologies for analysis of fluopicolide and 2,6-dichlorobenzamide in vegetables and soil.
Not Available |
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| Creator |
Gourishankar, M., Mohapatra, S., Lekha, S., and Radhika, B.
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| Subject |
Fluopicolide, method validation, recovery, soil, vegetables
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| Description |
Not Available
Fluopicolide is a relatively new compound used in pest management of vegetable crops. This study was carried out to validate efficient analytical methods to analyze fluopicolide and its major metabolite 2,6-dichlorobenzamide in vegetables (cabbage, cauliflower, and cucumber) and soil by gas chromatography (GC) and gas chromatography mass spectrometry (GC-MS). The extraction and purification of fluopicolide residues and its metabolite was carried out by QuEChERS and ethyl acetate based extraction methods. The methods were validated by assessing various performance parameters such as selectivity, linearity, limit of detection (LOD), limit of quantification (LOQ), accuracy and precision, matrix effect, measurement uncertainty and recovery. The suitability of the both methods for analysis of fluopicolide and 2,6-dichlorobenzamide in all the matrices was evaluated. The recoveries of fluopicolide and its metabolite from vegetables and soil at the spiking levels of 0. 01-0. 5 μg g־1 were between 68. 72-97. 80% and 62. 22-99. 40% by QuEChERS and ethyl acetate based extraction methods, respectively. The repeatability of the methods, expressed as relative standard deviation (%RSD), was between 4. 8-13. 8 (QuEChERS) and 4. 5-13. 0 (ethyl acetate). The combined uncertainties were in the range of 10. 9-19. 6% for QuEChERS and 10. 7-18. 8% for ethyl acetate method. Ethyl acetate based extraction method was better suited for analysis of fluopicolide and 2,6-dichlorobenzamide in cucumber and QuEChERS method for cabbage and cauliflower. Analysis of both compounds in soil gave satisfactory results from the two methods at the spiking levels of 0. 01-0. 5 μg g־1. Not Available |
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| Date |
2019-03-19T03:30:36Z
2019-03-19T03:30:36Z 2015-01-01 |
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| Type |
Journal
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| Identifier |
1
Not Available http://krishi.icar.gov.in/jspui/handle/123456789/17389 |
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| Language |
English
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| Relation |
Not Available;
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Not Available
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