Trace amount of mercury in water has been determined with satisfactory results.

方法用于水中汞的测定结果满意。

Trace amount of chromium and nickel was determined using a flow injection on line extraction FAAS system.

本文用流动注射-在线萃取火焰原子吸收法测定了人发中微量的铬和镍。

The application of the hollow cathode discharge source in the trace amount element analysis is recommended.

并介绍了空心阴极光源在痕量分析上的应用。

It is more difficult to treat trace amount of silver and mercury ions than those of large amount in liquid.

论文摘要在实际的水处理过程中，含有微量银、汞离子的废水处理往往比含大量银、汞离子的废水更加困难。

The results show that it is a effective means to concentrate trace amount of volatile organic substance in GC analysis.

实验表明，该装置是痕量挥发性有机物浓缩富集-气相色谱分析的有效手段。