连续氢化物发生-微波等离子体炬原子发射光谱法测定砷

The Determination of Arsenic by Continuous Hydride Generation Microwave Plasma Torch Atomic Emission Spectrometry

对连续氢化物发生－微波等离子体炬原子发射光谱法测定砷进行了研究．对这一方法的分析性能考察结果表明，本法对砷的检出限（３σ）为２７ｎｇ／ｍＬ，线性范围达三个数量级，大多数共存离子的干扰很小．对实际样品是一种简便、快速。

The technique of microwave plasma torch atomic emission spectrometry coupled with continuous hydride generation has been studied through the determination of arsenic. The results showed that the detection limit for arsenic is 27 ng/mL, the linear dynamic range is 0.1-50μg/mL and the interferences from most concomitant ions are little. The method has been used to determine arsenic in two standard geological samples with satisfactory results