This papers not only explores which factors make the consistency determination of the NaH_2PO_2 non-accurate in the chemical nickle-plated aqua , but also advance some feasible resolutions.
本文主要探讨了化学镀镍液中影响次磷酸钠浓度测定准确度的因素，并相应地提出了行之有效的解决方法。
The advance in China's gold assay in 2001 is reviewed. It deals with the separation and enrichment of gold and various methods of determination. 82 references were cited.
前言： 综评了2 0 0 1年中国金分析测定的进展，包括金的分离富集和各种分析测定方法。文末附参考文献82篇。
The advance in China's gold assay in 2001 is reviewed. It deals with the separation and enrichment of gold and various methods of determination. 82 references were cited.
前言： 综评了2 0 0 1年中国金分析测定的进展，包括金的分离富集和各种分析测定方法。文末附参考文献82篇。
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