Spectrophotometric method for determination of phosphine residues in cashew kernels.

Rangaswamy, J. R. (1988) Spectrophotometric method for determination of phosphine residues in cashew kernels. Journal of the Association of Official Analytical Chemists, 71 (3). pp. 557-9. ISSN 0004-5756

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Abstract

A spectrophotometric method reported for determination of phosphine (PH3) residues in wheat has been extended for determination of these residues in cashew kernels. Unlike the spectrum for wheat, the spectrum of PH3 residue-AgNO3 chromophore from cashew kernels does not show an absorption maximum at 400 nm; nevertheless, reading the absorbance at 400 nm afforded good recoveries of 90-98%. No interference occurred from crop materials, and crop controls showed low absorbance; the method can be applied for determinations as low as 0.01 ppm PH3 residue in cashew kernels.

Item Type:	Article
Uncontrolled Keywords:	phosphine residues, cashew kernels, spectrophotometry
Subjects:	500 Natural Sciences and Mathematics > 04 Chemistry and Allied Sciences > 26 Pesticide Chemistry 600 Technology > 08 Food technology > 33 Nuts
Divisions:	Food Protectants and Infestation Control
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	15 Nov 2021 06:06
Last Modified:	15 Nov 2021 06:06
URI:	http://ir.cftri.res.in/id/eprint/2369

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