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. 1982 Mar;29(3):231-3.
doi: 10.1016/0039-9140(82)80100-8.

Evaluation of sulphuric acid treatment as the clean-up step for the estimation of BHC and DDT in fatty and non-fatty foods

P P Singh  1 , R P Chawla
Affiliations

Evaluation of sulphuric acid treatment as the clean-up step for the estimation of BHC and DDT in fatty and non-fatty foods

P P Singh et al. Talanta. 1982 Mar.

Abstract

The potential of sulphuric acid treatment for clean-up of 10 food composites comprising 36 food items of north Indian total diet has been evaluated for the estimation of BHC and DDT residues by gas chromatography with electron-capture detection. In all cases the clean-up was satisfactory without resort to column chromatography. The chromatograms obtained were free from interference by the co-extractives. The method is simple, rapid and economical.

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