本論文主要是建立一個簡單吹氣捕捉的前處理系統，並結合離子層析儀來偵測在高濃度鈉離子干擾下微量的銨離子，並將這個前處理系統應用於偵測海水及銅/胺基酸錯合物的光產物分析上。由於離子層析法是目前相當廣泛被用來量測銨離子的一種分析方法，但是要利用此方法來量測在高濃度鈉離子干擾之下微量的銨離子並不容易，所以本論文先利用銨離子與其它陽離子不同的基本性質（即是氨在水中的分佈隨著pH值變化的關係），先將銨離子從複雜的基質干擾中分離出來，然後再利用離子層析儀進行定量。這個前處理系統不但可以準確地定量銨離子，還可以達到樣品前濃縮及保護分析管柱…等優點。
銅/胺基酸錯合物在經由波長313 nm的照射下所產生的一價銅與銨離子的反應速率比值會隨著胺基酸的不同而不同，推測是與胺基酸的側鏈結構不同有關係，其反應速率比值約為2 ~ 4。

The study was mainly to establish a simple purge-and-trap pretreatment combining with Ion Chromatography (IC) system for quantitative analysis of trace ammonium ion in the presence of high concentration of sodium ion. The new method has been applied for the analysis of ammonia from seawaters and the photolysis of copper(II) – amino acid complexes. Although IC is a quick and effective technique utilized to determine inorganic cations and ammonium, it is extremely difficult to analyze samples of very dissimilar concentration ratios of sodium-to-ammonium, such as seawater. Different from other cations with only one species form, ammonium could be deprotonated to ammonia under high pH. Then ammonia exchange between water and gas could be occurred by purging and trapping. The collected ammonium is further analyzed by IC. The pretreatment system is not only a preconcentration technique but also is highly effective in removing matrix interferences. The present approach provides low limits of detection and keeps column performance longer.
The formation rate ratios of copper(I) to ammonium ion in aqueous solution without oxygen under monochromatic radiation at 313 nm were around 2 to 4, probably relating to the different side chains of amino acids as the ligands.

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