摘要
本文以KH_2PO_4为载体,In和Pd作内标,采用平头石墨电极,交流电弧光源和溶液干楂法,建立了一个发射光谱法在几十毫克大气飘尘样品中同时测定Be、V、Cr、Ni、Fe、Cu、Sn、Ti、Pb、Mn、Cd、Zn和Co等13个元素。方法灵敏、快速,精密度和准确度均能满足环境分析的要求。应用所提出的方法,对成都市大气飘尘中的金属元素含量与粒径分布进行了分析。
In this study an E S method has heen pro-posed,in which KH_2PO_4 is used as the carrier,In and Pd as the internal standards,flat head graphite electrode as the working electrode .and 6A alternating current are as the lightsource. The solution residue technique and amodel WSP-1 Spectrometer were used.In asmall sample of about several ten milligrams,13 elements (Be,V,Cr,Ni,Fe,Cu,Sn,Ti,Pb,Mn,Zn,Cd and Co)were simultaneouslydetmrmined,The results Show that thismethod is fast and sensitive,and its precisionand aecuracy can meet the requirements of en-vironmentrql analysis.This mctbod has been used for The deter-mination of metallic elements contained theirdistribution in airborn particulates in Cheng-du.
出处
《分析试验室》
CAS
CSCD
北大核心
1996年第5期10-14,共5页
Chinese Journal of Analysis Laboratory
关键词
发射光谱法
飘尘
金属元素
粒度分布
大气
Emisslon spectometry
air-born particulates
of metallic elements
parti-cle-size distribution