城市大气飘尘的发射光谱分析  

An ES Method for Analyzing Air-BorneParticulates in City

作　　者：寇兴明[1] 顾永祚[1] 

机构地区：[1]四川师范大学化学系,四川大学化学系

出　　处：《分析试验室》1996年第5期10-14,共5页Chinese Journal of Analysis Laboratory

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.

关 键 词：发射光谱法 飘尘 金属元素 粒度分布 大气 

分 类 号：X831.02[环境科学与工程—环境工程]