水中阴离子表面活性剂的自动测量方法  

The study on automatic measurement of anionic surfactantIn water

作　　者：张乐乐[1] 刘秀娟 许行翔[1] 路淅红 方佩佩[1] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]北京市通州区供水排水水质监测站,北京101149

出　　处：《分析试验室》2017年第4期489-492,共4页Chinese Journal of Analysis Laboratory

摘　　要：通过对国标方法(水质阴离子表面活性剂的测量—亚甲蓝分光光度法)的研究,设计一种自动搅拌萃取和反萃取、自动分光光度测量水中阴离子表面活性剂的仪器。仪器对水样的全自动测量,实现水样测量的高灵敏度、高稳定性、高回收率及实验过程的无毒害化。该仪器的使用将会解决国标方法人工操作的复杂性和不稳定性,并将完全免除实验过程中用到的有机萃取剂氯仿对人体的毒害。仪器对于实际水样的测量相对标准偏差在3%以内,检出限为4.6μg/L,加标回收率超过95%。An automatic stirring extraction and back extraction method was developed for the determination of anionic surfactants in water by automatic spectrophotometry, by the study of national standard method （ Water quality ： Determination of anionic surfactants. Methylene blue spectrophotometric method）. The automatic measurement achieved a high sensitivity of water samples, high stability and the non-toxicity of the experimental process. The use of the instrument will solve the complexity and instability in manual operation by the national standard method, and will completely remove the poison on human in experimental process using the organic extractant chloroform. For the actual water samples, the relative standard deviation （RSD） is less than 3%. The detection limit is 4. 6 μg/L, and the recoveries are more than 95%.

关 键 词：阴离子表面活性剂 氯仿 萃取 自动化 

分 类 号：X832[环境科学与工程—环境工程]