Journal of Agricultural and Food Chemistry p. 1712 - 1717 (1995)
Update date:2022-08-11
Topics:
Suzuki, Toshinari
Yaguchi, Kumiko
Ohnishi, Kazuo
Suga, Tetsuya
Degradation products of terbutol (2,6-di-tert-butyl-4-methylphenyl N-methylcarbamate) in drainage and ground water from golf courses, on which terbutol had been applied as a herbicide, were identified by capillary GC/MS and reversed-phase HPLC. terbutol and 4-carboxy-, N-demethyl-, and 4-carboxy-N-demethylterbutol were detected in all water samples at concentrations of parts per billion levels.In addition, 4-(hydroxymethyl)- and 4-formylterbutol, 2,6-di-tert-butyl-4-methylphenol (BHT), and 4-(hydroxymethyl)-, 4-formyl-, and 4-carboxy-BHT were observed in some water samples at concentrations of parts per thousand levels.These results demonstrated that terbutol applied on golf courses was mainly degraded by N-demethylation, oxidation of the 4-methyl group, and hydrolysis of the carbamate ester linkage. Keywords:Terbutol; 2,6-di-tert-butyl-4-methylphenyl N-methylcarbamate; identification; degradation
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