iCE 3500 石墨炉原子吸收光谱仪应用于矿泉水中砷的分析

　abstract：

The sample is pre-reduced using a mixture of potassium iodide and L-ascorbic acid. Arsenic is determined by Hydride Generation Atomic Absorption Spectrometry (HGAAS) using the VP100 Continuous Flow Vapour System.

　　instrument：

　　iCE3500 石墨炉原子吸收光谱仪

　　Conclusions：

The calibration is perfectly linear and the characteristic concentration is 0.217 μg/L. The unspiked tap water sample = 0.61 ± 0.02 μg/L and the average spike recovery (see table 1.) for As was 103.2 ± 2.6 %