Isolation and identification of chlorpropham and two of its metabolites in potatoes by GC-MS |
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| Institution: | 1. School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Changzhou 213164, PR China;2. Food Science and Technology Programme, c/o Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Republic of Singapore |
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| Abstract: | Chloropropham (3-chlorophenyl)carbamic acid 1-methylethyl ester] (CPP) and two of its metabolite/degradation products, 3-chloroaniline (3-CA) and 3,3′-dichloroazobenzene (3,3′-DCAB), were analyzed in potato peels obtained from market potatoes from several geographic regions. Residues were screened for by capillary EC-GLC and quantitated by capillary GC-MS using single ion monitoring. This permitted the simultaneous analysis of all three compounds in peel extracts, with minimal cleanup, at the ppb level. Residue levels of 21–166 ppb (CPP), 0.18–0.36 ppb (3-CA) and 2–39 ppb (3,3′-DCAB) were found in several samples. |
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