原子荧光光谱法测定地质样品中As、Sb、Bi、Hg——需要注意的问题及解决方法

通过总结实际工作及查阅文献，分析了样品制备、酸度、硼氢化钾浓度对As、Sb、Bi、Hg测定的准确性及灵敏度的影响，确定了仪器测定过程中负高压、载气流量、原子化器高度及温度、元素干扰对测定结果的影响，并总结了在日常测定过程中仪器故障排除、测量误差的控制及测量过程中潜在的问题及解决方法.

PROBLEMS AND SOLUTIONS IN MEASUREMENT OF As,Sb, Bi AND Hg IN GEOLOGICAL SAMPLES BY HG-AFS

Based on practical work and related literature,the paper analyzes the effects of sample preparation,acidity and concentration of potassium borohydride on accuracy and sensitivity of measurement of As,Sb,Bi and Hg by hydride generation-atomic fluorescence spectrometry （HG-AFS）,confirms the effects of some influencing factors such as negative high-voltage,carrier flow,atomizer height,temperature and element interference on test result,and summarizes troubleshooting methods for instruments,the way of testing error-control and other potential problems and solutions in ordinary test process.