ICP-OES法测定塑料给水管中11种重金属元素含量的研究

Determination of 11 Heavy Metal Elements in Plastic Water Supply Pipe by ICP-OES

采用电感耦合等离子发射光谱仪(ICP-OES)同时测定塑料给水管中砷、钡、钴、铬等11种金属元素含量的方法,对市售的塑料给水管进行重金属元素含量测定。采用浸泡法和超声波法两种方法制备浸出液,分别检测两种方法浸出液重金属元素含量,最后分析比较了两种方法制备的浸出液对于检测结果的影响,结果表明,超声波法相对浸泡法在更短的时间能使更多重金属元素析出。

By using the inductively coupled plasma-atomic emission spectrometry （ICP-OES ） machine whichsimultaneously measured barium, cobalt and chromium in plastic water supply pipes, the content of heavy metalelements in plastic water pipes purchased by famous enterprises and random sampling on： the market were analyzed. Theleaching solution was prepared by soaking method and ultrasonic method, the contents of heavy metal elements inleaching solution of two methods were tested, and the effects of leaching solution prepared by the two methods on thedetection results were compared. The results showed that theultrasonic method can make more heavy metal elements in ashorter time.