有机酸分析的柱后缓冲电导法与紫外法、直接电导法的比较  

Comparison of Post-column pH-buffered Conductive Method with UV and Direct Conductive Measurement for Organic Acid Analysis

作　　者：李月琪 姚建国 端裕树 

机构地区：[1]岛津国际贸易(上海)有限公司北京分析应用中心,北京100020

出　　处：《分析科学学报》2005年第5期549-551,共3页Journal of Analytical Science

摘　　要：柱后缓冲电导法采用柱后调节pH值,电导检测器检测的方法检测有机酸,它避免了经常使用的紫外法选择性差,直接电导法灵敏度低的缺点,是可以实现有机酸准确定量的一种新型分析方法。本文比较了这三种方法的分析结果。Post-column pH-buffered conductive method is an effective method to detect organic acid in ionexclusion chromatography. This method can increase the selectivity compared with UV detection method, and has a higher sensitivity than direct conductive measurement. Post-column pH-buffered conductive method is a new quantitative analysis method for organic acid analysis. In this paper, we have analyzed actual sample using this method and compared it with conventional detection method.

关 键 词：HPLC 有机酸 电导检测 直接电导法 有机酸分析 紫外法 缓冲 电导检测器 分析结果 PH值 灵敏度 

分 类 号：X831.02[环境科学与工程—环境工程] TS264.21[轻工技术与工程—发酵工程]