通常情况下 ,溶液中某一离子的定量分析都是在盐含量很低的情况下进行的 ,但油田示踪剂的分析却需要在高矿化度条件下完成 ,特别是在中原油田的产出水中。本文分析了水矿化度及其中钙镁离子对分析硝酸根离子的影响 ,并提出了解决这一问题的办法 ,形成了完整的分析方法。新方法具有分析范围宽 ,精密度好 ,准确度高的特点。 Usually, the quantitative analysis of a certain ion in solution is carried out under very low salt content. However, the analysis of oil field tracers needs to be done under high salinity conditions, especially in Zhongyuan Oilfield Out of water. This paper analyzes the degree of water salinity and calcium and magnesium ions on the analysis of the impact of nitrate ions, and put forward the solution to this problem approach to form a complete analysis. The new method has the characteristics of wide range of analysis, good precision and high accuracy.