摘要
采用微孔滤膜采集大气颗粒物中的铬、铜、铅、锰、锌、镍、铁,消解后使用电感耦合等离子体发射光谱法测定。在选定的最佳条件下测铬、铜、铅、锰、锌、镍、铁的检出限分别为5 .3、7.3、3.4、2 .9、4 .2、13.9、7.8ng·mL-1,回收率为93.2～10 5 .9K ,RSD为0 .5 5 %～2 .35 %。该法准确、快速、简便,应用于水泥厂大气颗粒物的测定,结果满意。
A new sampling method of atmospheric particulates using micropore mcmmbranc filters was introduced.Chromium,copper,lead,manganese,zinc,nickel and iron in atmospheric particulates in cement factory districts were determined by ICP-AES.Under the optimum condition,the detection limits of Cr,Cu,Pb,Mn,Zn,Ni and Fe are 5.3?7.3?3.4?2.9?4.2? 13.9?7.8ng·mL -1 respectively.The recovery rates of the method are 93.2%-105.9%,RSD0.55%-2.35%.This method is accurate,quick-acquired and convenient.It is used in the determination of atmospheric particulates in cement factory districts and the result is satisfactory.
出处
《化工时刊》
CAS
2005年第4期22-23,共2页
Chemical Industry Times
