In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results sho...In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results showed that defining planarian mortality in light of its body disintegration was appropriate.If the disintegrated tissue of a planarian was more than 1/4 of its body length,it would completely degenerate.However,a planarian would regenerate the lost tissue and return to normal after a few days’recovery culture if the disintegrated part was less than 1/4 of body length.Therefore,we propose to use body disintegration as the endpoint of planarian mortality,i.e.,1/4 body length degenerated is the critical threshold of mortality and survival of planarians when exposed to toxicants.This criterion could be adapted in the standardization of testing protocols and comparability of acute toxicity test or other toxicological research using planarian as the test animal.展开更多
实验用0.5 mol的CH_3CH_2CH_2Br和0.5 mo L的C_4H_6N_2合成[PMIM]Br离子液体,得到无色透明的油状液体[PMIM]Br,用红IR表征了[PMIM]Br。[PMIM]Br在下列溶剂中有较好的溶解性:H_2O、C_2H_5OH、CH_3OH CH_3COOH、CH_3CN、CH_3COCH_3;[PMIM...实验用0.5 mol的CH_3CH_2CH_2Br和0.5 mo L的C_4H_6N_2合成[PMIM]Br离子液体,得到无色透明的油状液体[PMIM]Br,用红IR表征了[PMIM]Br。[PMIM]Br在下列溶剂中有较好的溶解性:H_2O、C_2H_5OH、CH_3OH CH_3COOH、CH_3CN、CH_3COCH_3;[PMIM]Br在下列溶剂中不溶或难溶:CH_3CH_2OCH_2CH_3、CH_3COOCH_2CH_3、CH_3Cl、CCl_4、C_6H_(12)。展开更多
实验用0.5 mol的CH_3CH_2CH_2CH_2Br和0.5 mo L的C4H6N2合成[BMIM]Br离子液体,得到无色透明的油状液体[BMIM]Br。利用IR表征了[BMIM]Br。离子液体中间体在常用溶剂中的溶解性,[BMIM]Br在C_2H_(50)H、H_2O、CH_3CN、CH_3COOH、CH_3OH、CH...实验用0.5 mol的CH_3CH_2CH_2CH_2Br和0.5 mo L的C4H6N2合成[BMIM]Br离子液体,得到无色透明的油状液体[BMIM]Br。利用IR表征了[BMIM]Br。离子液体中间体在常用溶剂中的溶解性,[BMIM]Br在C_2H_(50)H、H_2O、CH_3CN、CH_3COOH、CH_3OH、CH_3COCH_3等溶剂中有较好的溶解性;[BMIM]Br在下列溶剂中不溶或难溶:CH_3C_2OCH_2CH_3、CH_3COOCH_2CH_3、CH_3Cl、CCl_4、C_6H_(12)。展开更多
基金supported by the National Natural Science Foundation of China(31471965)the Natural Science Foundation of Henan P rovince(142300410457)the National Student Innovation Training P roject of Henan Normal University(201410476051)
文摘In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results showed that defining planarian mortality in light of its body disintegration was appropriate.If the disintegrated tissue of a planarian was more than 1/4 of its body length,it would completely degenerate.However,a planarian would regenerate the lost tissue and return to normal after a few days’recovery culture if the disintegrated part was less than 1/4 of body length.Therefore,we propose to use body disintegration as the endpoint of planarian mortality,i.e.,1/4 body length degenerated is the critical threshold of mortality and survival of planarians when exposed to toxicants.This criterion could be adapted in the standardization of testing protocols and comparability of acute toxicity test or other toxicological research using planarian as the test animal.
文摘实验用0.5 mol的CH_3CH_2CH_2Br和0.5 mo L的C_4H_6N_2合成[PMIM]Br离子液体,得到无色透明的油状液体[PMIM]Br,用红IR表征了[PMIM]Br。[PMIM]Br在下列溶剂中有较好的溶解性:H_2O、C_2H_5OH、CH_3OH CH_3COOH、CH_3CN、CH_3COCH_3;[PMIM]Br在下列溶剂中不溶或难溶:CH_3CH_2OCH_2CH_3、CH_3COOCH_2CH_3、CH_3Cl、CCl_4、C_6H_(12)。
文摘实验用0.5 mol的CH_3CH_2CH_2CH_2Br和0.5 mo L的C4H6N2合成[BMIM]Br离子液体,得到无色透明的油状液体[BMIM]Br。利用IR表征了[BMIM]Br。离子液体中间体在常用溶剂中的溶解性,[BMIM]Br在C_2H_(50)H、H_2O、CH_3CN、CH_3COOH、CH_3OH、CH_3COCH_3等溶剂中有较好的溶解性;[BMIM]Br在下列溶剂中不溶或难溶:CH_3C_2OCH_2CH_3、CH_3COOCH_2CH_3、CH_3Cl、CCl_4、C_6H_(12)。
