Journal of environmental science and health. Part B, Pesticides, food contaminants, and agricultural wastes
Paginering:
Jaargang 15 (1980) nr. 2 pagina's 147-164
Jaar:
1980
Inhoud:
β -HCH was shaken with distilled water at 25 ± 1°C for different time intervals and filtered. The ether extract of the filtrate on analysis by gas liquid chromatography shoved the presence of four isomers, ζ, β, and δ, besides other compounds, thereby indicating isomerization of the β-isomer in aqueous solution. Further, the ether extract, when dried and dissolved in acetone, showed high toxicity to mosquito larvae, flour beetle larvae and house-flies thereby indicating conversion of the inert β-isomer to more toxic forms corroborating GLC analysis. Acetone solution of pure β -HCH was found nontoxio against the insects tested.