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The continuous determination of arsenic and lead in the solution of the same sample by spectrophotometry is described, based on the reaction between hydrides and silver nitrate.
本文提出了以氢化物与硝酸银反应为基础的在一份试样溶液中连续测定微量砷和铅的分光光度法。
The experimental instrument, sample preparation and determination method of the trace element Se in solution by total reflection X-ray fluorescence analysis are described in this paper.
本文叙述了用全反射X荧光分析方法测定溶液中微量硒的实验装置、制样技术和测定方法。
The sample was treated with releasing a-gent lanthanum chloride for the determination of Ca and Mg and treated with cesium chloride solution to suppress ionization for the determination of K and na.
测定钙、镁时，采用氯化镧作为释放剂，测定钾、钠时，采用氯化铯作电离抑制剂。
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