梯度离子色谱法在火电厂水汽监督中的应用

Application of gradient ion chromatography for monitoring quality of water and steam in thermal power plant

研究了用梯度淋洗离子色谱法 /电导检测器分析有机酸与无机阴离子的色谱条件 ,建立了最佳梯度程序。通过浓缩柱的富集 ,最低检测限可达 10 -12 ,对大多数离子的相对标准偏差在 5 %以下。此方法可用于火电厂水汽系统中痕量低分子有机酸和无机阴离子的快速。

The chromatographic conditions for separation and detection of organic acids and inorganic anions by gradient ion chromatography with conductivity detector were studied and the optimal gradient program was established. The results show that the minimum detection limit can reach 10 -12 by using a concentrator column. The RSDs are lower than 5% for most anions. The method is simple, rapid and reliable in the determination of trace low molecular organic acids and inorganic anions in water and steam system of themal power plant.