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Effects of paddy water and some photosensitizers on the photolysis of the fungicide isoprothiolane



Effects of paddy water and some photosensitizers on the photolysis of the fungicide isoprothiolane



Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes 15(2): 135-146



The fungicide isoprothiolane (diisopropyl 1,3-dithiolan-2-ylidenemalonate) decomposed slowly in deionized water under ultraviolet light or sunlight irradiation. Rice-paddy water greatly accelerated the photodegradation. This photosensitizing effect was comparable to that of 2% acetone. Soil extracts, rice-plant extracts, and chlorophylls showed little effect for the isoprothiolane photolysis. Tryptophan showed a relatively weak accelerating effect after a considerable lag time. Riboflavin exerted a remarkable acceleration of the photolysis. This effect was suppressed by a nitrogen gas stream.

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Accession: 042961780

Download citation: RISBibTeXText

PMID: 7365205

DOI: 10.1080/03601238009372170



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