[Objectives]To establish a gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS)method based on multiple reaction monitoring(MRM)mode for the analysis of the major components in Cang-ai volatile oil(CAVO).[...[Objectives]To establish a gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS)method based on multiple reaction monitoring(MRM)mode for the analysis of the major components in Cang-ai volatile oil(CAVO).[Methods]An ultrasensitive gas chromatography-tandem mass spectrometry(GC-MS/MS)method was developed and validated for the determination of three highly abundant components in rat plasma samples.Paeonol was used as an internal standard.A multiple reaction monitoring(MRM)model was employed for the quantification of the three major components of CAVO.[Results]The method demonstrated linearity over the range of 0.25 to 50μg/mL with a correlation coefficient(R 2)greater than 0.9998.The lower limit of quantification was 0.25μg/mL.Intra-day and inter-day accuracy and precision were within 15%.Extraction recovery and matrix effect values ranged from 90.1%to 110.6%and 0.1%to 2.1%,respectively.[Conclusions]This method was successfully applied to the simultaneous determination of the three components in high-level CAVO plasma samples,providing a basis for subsequent studies of CAVO.展开更多
建立同时测定花生油中4种黄曲霉毒素(包括黄曲霉毒素B1、B2、G1、G2)的液相色谱-串联质谱法(liquidchromatography-tandem mass spectrometry,LC-MS/MS)。该方法经甲醇-水、三氯甲烷依次提取样品,以C18柱分离,流动相为乙腈-0.1%甲酸溶液...建立同时测定花生油中4种黄曲霉毒素(包括黄曲霉毒素B1、B2、G1、G2)的液相色谱-串联质谱法(liquidchromatography-tandem mass spectrometry,LC-MS/MS)。该方法经甲醇-水、三氯甲烷依次提取样品,以C18柱分离,流动相为乙腈-0.1%甲酸溶液(梯度洗脱),采用电喷雾正离子多反应监测(multiple reaction monitor,MRM)模式检测。结果表明:标准曲线在0.0～20.0μg/kg进样范围内线性良好;用本法测定4种黄曲霉毒素的回收率在70.8%～108.0%(低加标水平)、82.4%～104.5%(中和高加标水平)之间,相对标准偏差在5.7%～9.7%之间。运用所建立的方法对市售19种不同品牌和批次的花生油中的黄曲霉毒素进行分析,结果显示该方法选择性强、灵敏度高,适用于花生油中4种黄曲霉毒素的定性、定量测定。展开更多
基金the National Natural Science Foundation of China(NSFC)(82060823)Yunnan Science and Technology Talent and Platform Program(202105AG070012).
文摘[Objectives]To establish a gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS)method based on multiple reaction monitoring(MRM)mode for the analysis of the major components in Cang-ai volatile oil(CAVO).[Methods]An ultrasensitive gas chromatography-tandem mass spectrometry(GC-MS/MS)method was developed and validated for the determination of three highly abundant components in rat plasma samples.Paeonol was used as an internal standard.A multiple reaction monitoring(MRM)model was employed for the quantification of the three major components of CAVO.[Results]The method demonstrated linearity over the range of 0.25 to 50μg/mL with a correlation coefficient(R 2)greater than 0.9998.The lower limit of quantification was 0.25μg/mL.Intra-day and inter-day accuracy and precision were within 15%.Extraction recovery and matrix effect values ranged from 90.1%to 110.6%and 0.1%to 2.1%,respectively.[Conclusions]This method was successfully applied to the simultaneous determination of the three components in high-level CAVO plasma samples,providing a basis for subsequent studies of CAVO.
文摘建立同时测定花生油中4种黄曲霉毒素(包括黄曲霉毒素B1、B2、G1、G2)的液相色谱-串联质谱法(liquidchromatography-tandem mass spectrometry,LC-MS/MS)。该方法经甲醇-水、三氯甲烷依次提取样品,以C18柱分离,流动相为乙腈-0.1%甲酸溶液(梯度洗脱),采用电喷雾正离子多反应监测(multiple reaction monitor,MRM)模式检测。结果表明:标准曲线在0.0～20.0μg/kg进样范围内线性良好;用本法测定4种黄曲霉毒素的回收率在70.8%～108.0%(低加标水平)、82.4%～104.5%(中和高加标水平)之间,相对标准偏差在5.7%～9.7%之间。运用所建立的方法对市售19种不同品牌和批次的花生油中的黄曲霉毒素进行分析,结果显示该方法选择性强、灵敏度高,适用于花生油中4种黄曲霉毒素的定性、定量测定。
