Alterations in the biochemical parameters of the catfish treated with low sublethal con-centration (2. 15 mg' L- 1; 1/3 of 96h LC50 ) of a carbamate Pesticide-propoxur under staticlaboratory conditions for 10, 20 ...Alterations in the biochemical parameters of the catfish treated with low sublethal con-centration (2. 15 mg' L- 1; 1/3 of 96h LC50 ) of a carbamate Pesticide-propoxur under staticlaboratory conditions for 10, 20 and 30 days were assayed. The fish elicited consistant hyper-glycemia, concomitant wiLh liver and muscle glycogenolysis, and hypoproteinemia in muscleand liver except 10 day pet exposure to the pesticide, where hyperproteinemia was noticed inthe liver. Throughout the exposure period the fish exhibited hyperphosphatemia. Hypocal-cemia were recorded after 20 and 30 days, and serum magnesium level increased significantlyonly at 30 day expoSure to the Pesticide展开更多
Propoxur is a widely used dithiocarbamate insecticide. In this study, the clastogenic effect of propoxur has been evaluated using chromosomal aberration assay in mouse bone marrow cells. Single i. p. administration of...Propoxur is a widely used dithiocarbamate insecticide. In this study, the clastogenic effect of propoxur has been evaluated using chromosomal aberration assay in mouse bone marrow cells. Single i. p. administration of propoxur, at 25 mg/kg b.wt., a maximum tolerated dose (MTD) and 12 .5mg/kg b.wt (50% of MTD) have significantly induced different types of aberrations after 24 h of treatment. The aberrations were dose and time dependent and reached a maximum after 24 h of exposure. The sresult suggest a genotoxic potential of propoxur.展开更多
利用高效液相色谱-三重四极杆质谱仪建立水体中残杀威和高效氯氰菊酯含量检测方法。采用高效液相色谱串联质谱法,以乙腈-5 mmol/L乙酸铵水溶液(90%+10%)为流动相,使用以Eclipse Plus C18填充的色谱柱和质谱检测器,对水体中的残杀威和高...利用高效液相色谱-三重四极杆质谱仪建立水体中残杀威和高效氯氰菊酯含量检测方法。采用高效液相色谱串联质谱法,以乙腈-5 mmol/L乙酸铵水溶液(90%+10%)为流动相,使用以Eclipse Plus C18填充的色谱柱和质谱检测器,对水体中的残杀威和高效氯氰菊酯进行测定,外标法定量。结果表明:残杀威和高效氯氰菊酯分别在0.94~47.10、0.63~31.29μg/L质量浓度范围内线性关系良好,相关系数分别为0.9991和0.9994,变异系数分别为0.52%和2.05%,高质量浓度水平的平均回收率分别为102.26%和102.44%,低质量浓度水平的平均回收率分别为90.74%和98.24%。该方法具有操作简便、分离效果好、快速等优点,线性关系、准确度、精密度和灵敏度均满足要求,可用于水体中残留检测和水生生态环境毒理研究。展开更多
文摘Alterations in the biochemical parameters of the catfish treated with low sublethal con-centration (2. 15 mg' L- 1; 1/3 of 96h LC50 ) of a carbamate Pesticide-propoxur under staticlaboratory conditions for 10, 20 and 30 days were assayed. The fish elicited consistant hyper-glycemia, concomitant wiLh liver and muscle glycogenolysis, and hypoproteinemia in muscleand liver except 10 day pet exposure to the pesticide, where hyperproteinemia was noticed inthe liver. Throughout the exposure period the fish exhibited hyperphosphatemia. Hypocal-cemia were recorded after 20 and 30 days, and serum magnesium level increased significantlyonly at 30 day expoSure to the Pesticide
文摘Propoxur is a widely used dithiocarbamate insecticide. In this study, the clastogenic effect of propoxur has been evaluated using chromosomal aberration assay in mouse bone marrow cells. Single i. p. administration of propoxur, at 25 mg/kg b.wt., a maximum tolerated dose (MTD) and 12 .5mg/kg b.wt (50% of MTD) have significantly induced different types of aberrations after 24 h of treatment. The aberrations were dose and time dependent and reached a maximum after 24 h of exposure. The sresult suggest a genotoxic potential of propoxur.
文摘利用高效液相色谱-三重四极杆质谱仪建立水体中残杀威和高效氯氰菊酯含量检测方法。采用高效液相色谱串联质谱法,以乙腈-5 mmol/L乙酸铵水溶液(90%+10%)为流动相,使用以Eclipse Plus C18填充的色谱柱和质谱检测器,对水体中的残杀威和高效氯氰菊酯进行测定,外标法定量。结果表明:残杀威和高效氯氰菊酯分别在0.94~47.10、0.63~31.29μg/L质量浓度范围内线性关系良好,相关系数分别为0.9991和0.9994,变异系数分别为0.52%和2.05%,高质量浓度水平的平均回收率分别为102.26%和102.44%,低质量浓度水平的平均回收率分别为90.74%和98.24%。该方法具有操作简便、分离效果好、快速等优点,线性关系、准确度、精密度和灵敏度均满足要求,可用于水体中残留检测和水生生态环境毒理研究。
