A method based on capillary electrophoresis with a high frequency conductivity detection was developed for the determination of Sinomenine. The key factors for separation and determination were studied and the best an...A method based on capillary electrophoresis with a high frequency conductivity detection was developed for the determination of Sinomenine. The key factors for separation and determination were studied and the best analysis conditions were obtained. In the buffer of 2.0 mmol/L HAc-3.0 mmol/L NaAc-10.0% CH 3OH at a separation voltage of 22 kV, Sinomenine in the sample could be separated and detected within 4 min. The linear mass concentration of Sinomenine is in the range of 1.0—36.0 μg/mL, the limit of detection reached 0.20 μg/mL. The method was used for the analysis of Sinomenine in Sinomenium acutum and tablets satisfactorily with a recovery of 96%—102%.展开更多
采用乙腈沉淀蛋白法进行样本前处理,选用ZORBAX HILIC Plus (100mm×2.1mm,2.7μm)色谱柱,以0.2%甲酸+20mmol/L甲酸铵水溶液(A)-乙腈(B)作为流动相进行梯度洗脱,采用ESI+模式扫描,多反应监测模式(MRM)检测敌草快。敌草快在10.0~500....采用乙腈沉淀蛋白法进行样本前处理,选用ZORBAX HILIC Plus (100mm×2.1mm,2.7μm)色谱柱,以0.2%甲酸+20mmol/L甲酸铵水溶液(A)-乙腈(B)作为流动相进行梯度洗脱,采用ESI+模式扫描,多反应监测模式(MRM)检测敌草快。敌草快在10.0~500.0ng/mL添加水平范围内,线性关系良好,检出限为4.0ng/mL;在高、中、低三个添加浓度下,平均加标回收率为93.1%~106.7%,相对标准偏差(RSD)为4.2%~8.5%。该方法操作简便快速,灵敏度高,结果准确,可用于实际案例中敌草快的检验。展开更多
文摘A method based on capillary electrophoresis with a high frequency conductivity detection was developed for the determination of Sinomenine. The key factors for separation and determination were studied and the best analysis conditions were obtained. In the buffer of 2.0 mmol/L HAc-3.0 mmol/L NaAc-10.0% CH 3OH at a separation voltage of 22 kV, Sinomenine in the sample could be separated and detected within 4 min. The linear mass concentration of Sinomenine is in the range of 1.0—36.0 μg/mL, the limit of detection reached 0.20 μg/mL. The method was used for the analysis of Sinomenine in Sinomenium acutum and tablets satisfactorily with a recovery of 96%—102%.
文摘采用乙腈沉淀蛋白法进行样本前处理,选用ZORBAX HILIC Plus (100mm×2.1mm,2.7μm)色谱柱,以0.2%甲酸+20mmol/L甲酸铵水溶液(A)-乙腈(B)作为流动相进行梯度洗脱,采用ESI+模式扫描,多反应监测模式(MRM)检测敌草快。敌草快在10.0~500.0ng/mL添加水平范围内,线性关系良好,检出限为4.0ng/mL;在高、中、低三个添加浓度下,平均加标回收率为93.1%~106.7%,相对标准偏差(RSD)为4.2%~8.5%。该方法操作简便快速,灵敏度高,结果准确,可用于实际案例中敌草快的检验。
