摘要
目的建立测定生物样品中的汞、砷的方法,为含朱砂、雄黄等矿物的中成药的安全性评价提供方法学研究基础。方法以HNO3-H2SO4体系消化含Hg生物样品,以HNO3-HClO4、HNO3-H2O2体系消化含As生物样品,在0.5MPa、1.0MPa、1.5MPa压力下各微波消解2min,用断续流动-氢化物发生原子荧光光度法测定Hg、As含量。结果Hg回收率为97.3%～99.1%;As回收率为99.4%～105.7%。结论该法具有操作简便、快速、准确、灵敏、重复性好等优点,可用于生物样品中Hg、As的测定。
Objective: To establish a method for determination of mercury (Hg) and arsenic (As) contents in biological samples. Methods: Biological samples containing Hg were pretreated with digestive agents of HNO3-H2SO4 and that of As with HNO3-HClO4 and HNO3-H2O2 under the pressure of 0.5 MPa,1.0 MPa and 1.5 MPa respectively heated for 2 minutes. And then the concentrations of Hg or As were determined by intermittent flow hydride generation-atomic spectrophotofluorimetry. Results: Recoveries of Hg and As were 97.3 %～99.1 %and 99.4 %～105.7 %respectively. Conclusion: The method is simple, rapid, accurate and sensitivite and with good reproducibility and is suitable for the determination of Hg and As contents in biological samples.
出处
《中药新药与临床药理》
CAS
CSCD
2002年第4期244-247,共4页
Traditional Chinese Drug Research and Clinical Pharmacology
基金
国家攀登计划资助项目(试启动课题)
关键词
汞
分析
砷
生物样品
微波消解
原子荧光法
中药
Mercury /analysis
Arsenic /analysis
@Biological sample /chemistry
@ Microwave digestion
@Atomic spectrophotofluorimetry
