摘要
用硝酸-高氯酸混合酸(4∶1)消化黄芪、甘草和广藿香,用石墨炉原子吸收光谱法测定黄芪、甘草和广藿香中的铅.在选定实验条件下,线性范围为0 ng/mL^20 ng/mL检出限为0.113 ng/mL,回收率为98.2%~100.9%,相对标准偏差为0.2%.
The lead in Milkvetch Root,Licorice Root and Cablin Potchouli Herb was directly determined by graphite furnace atomic absorption spectrometry after they being digested by HNO3-HClO4（4∶1）.Under the optimum conditions the linear range is 0 ng/mL～20 ng/mL,the detection limit is 0.113 ng/mL,the recovery is 98.2 %～100.9 % and the RSD is 0.2 %.
出处
《太原师范学院学报（自然科学版）》
2008年第1期110-112,共3页
Journal of Taiyuan Normal University:Natural Science Edition
基金
湖南省教育厅资助课题(06C784)
关键词
石墨炉原子吸收光谱法
黄芪
甘草
广藿香
铅
graphite furnace atomic absorption spectrometry
milkvetch root
licorice root
cablin potchouli herb
lead
