硝酸湿法一次性消解-原子吸收光谱法测水产品中的铅镉

Determination of Lead and Cadmium in Aquatic Products by Atomic Absorption with Wet Digestion Technique

本文采用硝酸湿法一次性消解处理水产品,消解液可以用来测定铅、镉含量,回收率在70%-110%之间、相对标准偏差(RSD<5%)满足实验要求。通过用有证标准物质进行测定,表明该方法在准确度上也能满足食品中污染物分析的要求。

In this paper, we reported a new method that heavy metals such as Lead and Cadmium in aquatic products could be digested with HNO3 solution together, the sample recoveries was in the range of 70%-110% and the relative standar deviations （RSD） 〈5%, Also, the method was proven to be accurate by determining the certificated reference material. The method could be used in the microanalysis of lead and cadmium in aquatic products.