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Detection and quantities of certain chlorinated pesticides by micro-thin layer chromatography.
Visweswariah, K. and Jayaram, M. (1971) Detection and quantities of certain chlorinated pesticides by micro-thin layer chromatography. Journal of Chromatography, 62 (3). 479-484, 14 ref..
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Journal of Chromatography, Volume-62(3 (1971) 479-484.pdf - Published Version Restricted to Registered users only Download (492kB) | Request a copy |
Abstract
Utilization of a combination of spot diam. and visual extinction methods on micro-TLC slides for rapid detection and quantitative estimation of chlorinated insecticides is studied. The spots were visualized by spraying with 1% o-toluidine/acetone solution. The min. quantities detectable are (mu): DDE 0.3; DDT 0.02; DDD 0.25; lindane 0.02; aldrin 0.25; endrin 0.15; BHC 0.02; captan 0.015. The colours of the spots at concn. of 0.02-0.2 mug, 0.2-2.5 mug and 2.5-10 mug are given. The error was 3-5%. Spot diam. was found to be directly proportional to concn. between 1-6 mug for DDT (diam. 0.22-0.7 cm), 1-7 mug for DDD, DDE and DDA (diam. 0.2-0.6 mm), and 1-4 mug for aldrin, dieldrin and endrin (diam. 0.1-0.6 mm), and for captan (diam. 0.2-0.5 mm). The error was 4-5.7mu. The method is used to determine pesticide residues in treated wheat samples. Recovery of 50 mg added lindane, DDT or captan was 90-92%.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | THIN-LAYER-CHROMATOGRAPHY; Detn. of organochlorine pesticides by TLC; TDE-; Detn. of /DDD/; DDE-; Detn. of /DDE/; DDT-; Detn. of /DDT/; BHC-; Detn. of /BHC/; CAPTAN-; Detn. of /captan/; ALDRINE-; Detn. of /aldrine/; ENDRIN-; Detn. of /endrin/; DIELDRIN-; Detn. of /dieldrin/ |
| Subjects: | 500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 26 Pesticide Chemistry 500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 06 Chromatography |
| Divisions: | Food Protectants and Infestation Control |
| Depositing User: | Food Sci. & Technol. Information Services |
| Date Deposited: | 14 Mar 2018 05:50 |
| Last Modified: | 14 Mar 2018 05:50 |
| URI: | http://ir.cftri.res.in/id/eprint/3713 |
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