Continuous enrichment and simultaneous monitoring of environmentally harmful substances emitted into environment

采用有机萃取相和亚甲基蓝水相双高速逆流色谱系统对阴离子型洗涤剂进行了分析。通过选择合适的流动相流速、进样量等条件，成功地将该系统应用于河水中阴离子洗涤剂的分析。由于所有的分析过程都可以在一个封闭的系统中进行，因此该方法不会对健康造成危害。该方法安全、准确、灵敏度高，可在较短的分析时间内连续测定多个样品。

A new dual high-speed counter-current chromatographic system using organic extraction phase and aqueous mobile phase containing methylene blue was applied to the analysis of anionic-type detergents. After selecting appropriate conditions such as flow rate of each mobile phase, sample volume etc, the new system was successfully applied to the analysis of anionic detergent in river water. As all the analytical procedure can be made in a closed system, the method has no health hazard. The present method is safe, precise, and highly sensitive, and can be applied for sequential determination of multiple samples in a short analysis time.