Spectrophotometric determination of phosphine residues in rice.

Rangaswamy, J. R. and Muthu, M. (1985) Spectrophotometric determination of phosphine residues in rice. Journal of the Association of Official Analytical Chemists, 68 (2). 205-208, 13 ref..

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Abstract

Phosphine residues were determined in 2 types of rice samples, raw polished and parboiled. The yellow chromophore due to phosphine from raw polished rice had 2 absorption maxima, a strong one at 370-380 nm and a weaker one at 400-410 nm. The chromophore from parboiled rice also had 2, one at 390-400 nm and the other at 410-420 nm. A closed system containing rice and a phosphine tablet or powder yielded 93-99% recovery of fortified phosphine. At any given dose of phosphine, parboiled rice retained a higher amount of residue after aeration than did raw polished rice.

Item Type:	Article
Uncontrolled Keywords:	FUMIGATION-; rice, phosphine residues detn. in; SPECTROSCOPY-; RICE-; phosphine residues detn. in rice
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 600 Technology > 08 Food technology > 21 Cereals > 01 Rice
Divisions:	Food Protectants and Infestation Control
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	13 Aug 2021 07:03
Last Modified:	13 Aug 2021 07:03
URI:	http://ir.cftri.res.in/id/eprint/6644

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