Degradation of cis-Chlordane in Aqueous Isopropanol, Isopropanol and Hexane by UV Radiation Treatment
Keywords: cis-chlordane, UV irradiation, photodegradation products, solid-phase extraction, GC-MS
AbstractThe degradation of cis-chlordane in different solvents by UV irradiation was investigated. The solvent affects the photodegradation of cis-chlordane where the degradation rate increases as solvent polarity increases: hexane (t1/2 = 315 min) < isopropanol (t1/2) = 277 min) < aqueous isopropanol (t1/2 = 25 min). The degradation of cis-chlordane and the formation of a number of photoproducts were monitored and analyzed by GC-MS. Solid-phase extraction with graphitized carbon black was used to extract cis-chlordane and its photoproducts in aqueous isopropanol. cis-Chlordane degrades by dechlorination in hexane while in isopropanol and in aqueous isopropanol, it degrades by dechlorination and oxidation. The chemical structures of the photoproducts were proposed.
How to Cite
Espino, M. P. B., Nakai, S., & Hosomi, M. (2006). Degradation of cis-Chlordane in Aqueous Isopropanol, Isopropanol and Hexane by UV Radiation Treatment. KIMIKA, 22(2), 65-75. https://doi.org/10.26534/kimika.v22i2.65-75
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