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Spectrophotometric method of determination of carbofuran residues.

Appaiah, K. M. and Ramakrishna, R. and Subba Rao, R. and Nagaraja, K. V. and Kapur, O. P. (1982) Spectrophotometric method of determination of carbofuran residues. Journal of Food Science and Technology, 19 (5). 211-212, 8 ref..

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Abstract

A method was developed for detn. of carbofuran residues based on hydrolysis with methanolic potassium hydroxide to carbofuran phenol, which on reaction with 4-amino-antipyrine in the presence of an alkaline oxidizing agent produces an orange colour dye with an absorption max. at 475 nm. The relationship between absorbance and concn. of carbofuran is linear in the range 0.5 to 20.0 mug/ml. Recovery of carbofuran from rice, wheat, jowar, pigeon pea, black gram and green gram when they were spiked with 30-240 mug of carbofuran ranged from 94.58 to 99.66%. The method can detect 0.3 p.p.m. of carbofuran in food grains.

Item Type: Article
Uncontrolled Keywords: SPECTROSCOPY-; cereals, carbofuran residues spectrophotometric detn. in; legumes, carbofuran residues spectrophotometric detn. in; INSECTICIDES-; CEREALS-; carbofuran residues spectrophotometric detn. in cereals; LEGUMES-; carbofuran residues spectrophotometric detn. in legumes
Subjects: 500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 10 Spectroscopic and Spectrometric analysis
500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 26 Pesticide Chemistry
Divisions: Food Protectants and Infestation Control
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 07 Oct 2010 05:50
Last Modified: 16 May 2012 09:23
URI: http://ir.cftri.com/id/eprint/6740

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