摘要
采用氢化物发生-原子荧光光谱法(HG-AFS)测定了中药川芎中硒的含量.将川芎试样经过消解,采用硼氢化钾和氢氧化钾作为还原剂,用氢化物发生-原子荧光光谱法测定了样品中硒的含量,建立了氢化物发生-原子荧光光谱法测定川芎中硒的分析方法.在最佳仪器工作条件下,硒在0~15 ng/m L范围内呈现良好的线性关系,线性方程为y=0.78x+31.35,相关系数为0.990 2,检出限0.96 ng/m L.川芎中硒的含量为1.354 ng/g,该研究为川芎中硒含量的测定以及中药的评价提供了科学数据.
Hydride generation-atomic fluorescence spectrometry(HG-AFS)was used to determine the content of selenium in Ligusticum chuanxiong.The sample of Ligusticum chuanxiong is digested by nitric acid,and the content of selenium is determined by HG-AFS with potassium hydroxide and potassium borohydride used as reducing agents.The analysis method of the hydride-atomic fluorescence spectrometry determination of selenium in Ligusticum chuanxiong was established.Under the optimum working conditions,the selenium contens express a good linear relationship in the range of 0~15 ng/mL.The standad curve equation is y=0.78x+31.35 with the correlation coefficient is 0.9902 and the detection limit is 0.96 ng/g.The selenium content in Ligusticum chuanxiong is 1.354 ng/g.This study can provide a scientific information for the determination of selenium and the evaluation of Ligusticum chuanxiong.
作者
曾晓丹
马明硕
金星
ZENG Xiaodan;MA Mingshuo;JIN Xing(Center of Analysis and Measurement,Jilin Institute of Chemical Technology,Jilin 132022,China)
出处
《吉林化工学院学报》
CAS
2020年第1期17-19,共3页
Journal of Jilin Institute of Chemical Technology
基金
吉林市科技局项目(20166023)
关键词
氢化物发生-原子荧光光谱法
川芎
硒
Hydride generation-atomic fluorescence
Ligusticum chuanxiong
selenium
