沉淀分离ICP-OES法测定水质中的重金属  

Determination of Heavy Metals in Water Quality by Precipitation Separation ICP-OES Method

作　　者：陈凡永 侯竹艳 张华[1,2] 彭桦 CHEN Fan-yong;HOU Zhu-yan;ZHANG Hua;PENG Hua(Yunnan Phosphating Group Co.,Ltd.,Yunnan Kunming 650600;National Engineering and Technology Center for the Development&Utilization of Phosphorous Resources,Yunnan Kunming 650600,China)

机构地区：[1]云南磷化集团有限公司,云南昆明650600 [2]国家磷资源开发利用工程技术研究中心,云南昆明650600

出　　处：《广州化工》2024年第11期79-82,共4页GuangZhou Chemical Industry

摘　　要：以沉淀分离法降低水样中固溶物含量,达到ICP-OES同心型雾化器盐含量(TDS<1%)要求,降低同心型雾化器在使用过程积盐,提高检测灵敏度。处理后的水样进行ICP-OES测定,研究表明,重金属砷、铅、镉、铬重金属元素线性相关系数>0.999,相对标准偏差(RSD)小于5%,检出限在0.8~9.5μg/L之间,加标回收率≥95%,满足地表水环境质量标准和地下水质量标准的分析要求。The solid solution content in water samples using precipitation separation method was reduced to meet the salt content requirements of ICP-OES concentric atomizer(TDS<1%),salt accumulation during use of concentric atomizer was reduced,and detection sensitivity was inproved.The treated water samples were determined by ICP-OES.The study showed that the linear correlation coefficient of heavy metal elements such as arsenic,lead,cadmium,and chromium was>0.999,the relative standard deviation(RSD)was less than 5%,the detection limit was between 0.8 and 9.5μg/L,and the spiked recovery rate was≥95%,meeting the analysis requirements of surface water environmental quality standards and groundwater quality standards.

关 键 词：ICP-OES 水质 重金属 沉淀分离法 

分 类 号：X832[环境科学与工程—环境工程]