The concentration and distribution of some inorganic ions ̄NO, .PO43- -NH4+ which are contaminants in Xi'an Moat arernanalyzed by Ion Chromatography. At the same time, analyze the source and convert of these ions and try to bring up some advice.%利用离子色谱仪针对西安护城河河水中的污染性的无机阴阳离子——NO3-、PO43-和NH4+在河水中的浓度和分布规律进行初步的研究;并对三种离子的来源和转化进行初步的分析,同时提出改善的方案和建议.
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