A simple and accurate method for determination of nitrite and nitrate in pickled vegetables by ion chromatography with ultraviolet detection was established.

建立了紫外检测离子色谱法测定酱腌菜中的亚硝酸盐与硝酸盐的分析方法。

We here focused our efforts mainly on how to improve the separation selectivity and reproducibility by wall modification and to improve the sensitivity by indirect ultraviolet detection.

为了提高分离的选择性、重现性以及检测灵敏度，本论文侧重于管壁涂层技术和间接紫外检测的有关研究，开展了以下几方面的工作。