摘要
化学品前处理是重金属测定的关键环节,既可消除有机物及其他杂质对测定的影响还可消除基体干扰。对电热板法、高压密闭消解法、微波消解法和石墨消解法进行分析比较,对各消解法时间的长短、用酸量、步骤的复杂程度及各金属元素的回收率等进行比较,以得出最适用于ICP-AES测化学品重金属的前处理方法。综合分析,微波消解法和石墨消解法都更适用于化学品前处理。
The pretreatment of chemical products is a key link in the determination of heavy metals. It can not only eliminate the influence of organic substances and other impurities on the determination,but also eliminate matrix interference. The analysis and comparison of electrothermal plate method,high pressure closed digestion method, microwave digestion method and graphite digestion method are made to compare the length of the digestion time, the acid amount, the complexity of the steps and the recovery rate of each metal element, so as to get the most suitable pretreatment method for determining the heavy metals in chemical products by ICP-AES. According to the comprehensive analysis,microwave digestion and graphite digestion are more suitable for chemical pretreatment
作者
陈佳
刘菲
俞凌云
吴小波
李萍
程杰
刘兴睿
董伟
CHEN Jia-yue;LIU Fei;YU Ling-yun;WU Xiao-bo;LI Ping;CHENG Jie;LIU Xing-rui;Dong Wei(Inspection and Quarantine Technical Center of Sichuan Entry-Exit Inspectionand Quarantine Bureau,Chengdu 610041,China)
出处
《皮革与化工》
CAS
2018年第5期19-21,26,共4页
Leather And Chemicals
基金
质检科研项目(2016IK247)
海关总署科技项目(2018IK051)
四川省科技项目(2017GFW0004)
关键词
化学品
重金属
消解
前处理
chemical products
heavy metals
digestion
pretreatment
