Improved cleanup technique for the estimation of endosulfan and endrin residues
Kathpal, T.S.; Dewan, R.S.
Journal - Association of Official Analytical Chemists 58(5): 1076-1078
1975
ISSN/ISBN: 0004-5756 PMID: 1158827 Document Number: 86177
An improved cleanup technique has been developed for the extraction of endosulfan and endrin from crops. The technique involves the use of Nuchar C-190N as adsorbent and a mixture of n-hexane and acetone (4+1) as the eluting solvent. The mean percentage recoveries of endosulfan (I and II) and endrin from plant tissue extracts fortified at levels of 0.5–2.0 ppm varied from 86 to 102 and 97 to 100, respectively.
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