Taking calcium ion as a case, analysis on non - accuracy of cation ion in the water by ion chromatography is done.
以钙离子为例，通过用离子色谱法测定水中阳离子测量不确定度分量的分析。
2
By giving examples, including the determination of acetic acid content in aqua ammonia, the use is described of the cation exchange resin in analysis in nitrogenous fertilizer plants.
通过氨水中乙酸含量的测定等实例，介绍了阳离子交换树脂在氮肥厂分析中的应用。
3
The indi cation of forecast analysis for China's fiscal expenditures, the combination of the two kinds of models can raise the forecast precision.