Objective To characterize the pharmacokinetics and distribution profiles of deltamethrin in miniature pig tissues by gas chromatography-mass spectrometry (GC-MS). Methods Pharmacokinetics and distribution of deltame...Objective To characterize the pharmacokinetics and distribution profiles of deltamethrin in miniature pig tissues by gas chromatography-mass spectrometry (GC-MS). Methods Pharmacokinetics and distribution of deltamethrin in blood and tissues of 30 miniature pigs were studied by GC-MS after oral administration of deltamethrin (5 mg/kg bw). Data were processed by 3P97 software. Results The serum deltamethrin level was significantly lower in tissues than in blood of miniature pigs.The AUC0-72 h, Cmax, of deltamethrin were 555.330±316.987 ng h/mL and 17.861±11.129 ng/mL, respectively. The Tmax, of deltamethrin was 6.004±3.131 h.Conclusion The metabolism of deltamethrin in miniature pigs is fit for a one-compartment model with a weighting function of I/C^2. Deltamethrin is rapidly hydrolyzed and accumulated in miniature pig tissues.展开更多
目的建立新型固相萃取技术结合超高效液相色谱串联质谱测定猪肉中17种β-受体阻断剂的测定方法。方法猪肉样品经酶解,乙腈沉淀蛋白并萃取后,经Oasis PRiME HLB固相萃取柱通过式净化。以甲醇和0.1%甲酸水为流动相梯度洗脱,采用迪马Endeav...目的建立新型固相萃取技术结合超高效液相色谱串联质谱测定猪肉中17种β-受体阻断剂的测定方法。方法猪肉样品经酶解,乙腈沉淀蛋白并萃取后,经Oasis PRiME HLB固相萃取柱通过式净化。以甲醇和0.1%甲酸水为流动相梯度洗脱,采用迪马Endeavorsil C18色谱柱分离,ESI源正离子模式进行多反应监测(MRM),内标法定量。结果17种β-受体阻断剂的线性范围在0.2~20μg/L,相关系数(r)>0.999,检出限(LOD)为0.05~0.07μg/kg,定量限(LOQ)为0.15~0.2μg/kg。3个加标水平下(0.2、0.4、2μg/kg)的回收率为84.97%~123.40%,RSD为0.41%~13.94%。结论本方法灵敏、快速、准确,可用于猪肉中β-受体阻断剂的定性、定量检测。展开更多
基金supported by the National Natural Science Foundation of China,No.30700664 and No.2012CB720804
文摘Objective To characterize the pharmacokinetics and distribution profiles of deltamethrin in miniature pig tissues by gas chromatography-mass spectrometry (GC-MS). Methods Pharmacokinetics and distribution of deltamethrin in blood and tissues of 30 miniature pigs were studied by GC-MS after oral administration of deltamethrin (5 mg/kg bw). Data were processed by 3P97 software. Results The serum deltamethrin level was significantly lower in tissues than in blood of miniature pigs.The AUC0-72 h, Cmax, of deltamethrin were 555.330±316.987 ng h/mL and 17.861±11.129 ng/mL, respectively. The Tmax, of deltamethrin was 6.004±3.131 h.Conclusion The metabolism of deltamethrin in miniature pigs is fit for a one-compartment model with a weighting function of I/C^2. Deltamethrin is rapidly hydrolyzed and accumulated in miniature pig tissues.
文摘目的建立新型固相萃取技术结合超高效液相色谱串联质谱测定猪肉中17种β-受体阻断剂的测定方法。方法猪肉样品经酶解,乙腈沉淀蛋白并萃取后,经Oasis PRiME HLB固相萃取柱通过式净化。以甲醇和0.1%甲酸水为流动相梯度洗脱,采用迪马Endeavorsil C18色谱柱分离,ESI源正离子模式进行多反应监测(MRM),内标法定量。结果17种β-受体阻断剂的线性范围在0.2~20μg/L,相关系数(r)>0.999,检出限(LOD)为0.05~0.07μg/kg,定量限(LOQ)为0.15~0.2μg/kg。3个加标水平下(0.2、0.4、2μg/kg)的回收率为84.97%~123.40%,RSD为0.41%~13.94%。结论本方法灵敏、快速、准确,可用于猪肉中β-受体阻断剂的定性、定量检测。