天然水重金属原子吸收法测定中螯合树脂在线预浓集  

Flame Atomic Absorption Spectrometric Determination of Copper,Lead,Cadmium,and Manganese in Natural Waters Using a Flow Injection System with On-line Ion Exchange Preconcentration

作　　者：王鹏[1] 杨玉霞[1] 周定[1] 

机构地区：[1]哈尔滨工业大学应用化学系

出　　处：《环境科学》1995年第5期54-56,共3页Environmental Science

摘　　要：采用流动注射，离子交换与原子吸收联用技术，建立了天然水中铜、铅、镉和锰等重金属离子的在线预浓集火焰原子吸收分析方法。该方法具有快速、在线、微量、自动、密闭等优点，分析作频率为４５／ｈ，浓集倍数约２０倍，相对标准偏差约为２．０％，适用于天然水中这些痕量离子的日常监测。文中讨论了各种实验条件对浓集效率的影响及其参数的选定。The title method was developed, and some practical considerations in the design of on-line colunmpreconcentration FIA system for FAAS werestudied. The relative standard deviation wasabout 2. 0% (n=11) at a sampling frequency of45 h-1 with an enrichment of around 20 times.The advantages, such as high-efficiency, on-line.accuracy, precision, micro-amount Of sainble,automation et al., made it PoSSible to be aPPliedto the routine analysis of natural waters.

关 键 词：原子吸收 重有色金属 水质监测 天然水 

分 类 号：X831.02[环境科学与工程—环境工程]