~(14)C-丁草胺、~(14)C-毒死蜱和~(14)C-DDT在日本林蛙中的生物学行为(英文)

用同位素示踪技术研究了14 C 丁草胺、14 C 毒死蜱和14 C DDT在日本林蛙 (RanajaponicajaponicaGuenther)中的生物学行为。结果发现 ,14 C 丁草胺、14 C 毒死蜱和14 C DDT在 2 4h后分布到青蛙的各个器官组织 ,并分别以胆囊、小肠、小肠为它们的特异性浓集器官。与胆囊或小肠的14 C放射性活度比较 ,其它器官组织中的要小得多。14C DDT在日本林蛙中较难降解 ,2 4h后DDT母体在肝和脂肪组织中占DDT代谢物的54 6%和 88 4%。青蛙中的14 C 丁草胺、14 C 毒死蜱和14 C DDT可被丙酮提取 ,但三者之间以及在青蛙的器官之间有差异

BEHAVIORS OF ~(14)C-BUTACHLOR, ~(14)C-CHLORPYRIFOS AND ~(14)C-DDT IN Rana japonica japonica GUENTHER

The research on the behaviors of 14 C butachlor, 14 C chlorpyrifos and 14 C DDT in the frog Rana japonica japonica Guenther was carried out. After administrated per os to the frogs in doses of 380,347,363 Bq/g, 14 C butachlor, 14 C chlorpyrifos and 14 C DDT, were distributed respectively to various organs within 24 h with specific accumulating organs as gallbladder, intestine and intestine, relevantly to the pesticides described. Compared to that in gallbladder and intestine, the radioactivity of many organs was extremely low, and this might due to the characters of the pesticides. Analysis of the metabolites of 14 C DDT in frog at 24th hr demonstrated that DDT was difficult to be degraded. Most 14 C butachlor, 14 C chlorpyrifos 14 C DDT in liver and fat or ovary of frog was extractable with acetone. However, there were some differences between the pesticides, and the organs as well. And 14 C butachlor, 14 C chlorpyrifos or 14 C DDT were better bound in liver than in fat.