摘要
目的建立ICP—AES测定工作场所空气中24种金属及其化合物的方法。方法采样滤膜经微波消解后，定容至25ml，用ICP—AES同时测定镁、镍、钾、钼、锌、钙、钡、铅、锰、镉、铬、钴、铜、锶、铋、铊、锡、锂、锑、锆、铟、钒、钇和铍。结果各元素的检出限为0．001～0．029mg／L，相关系数r≥0．9994，相对标准偏差〈5％，回收率91．2％-103．9％，7d内降解率〈9．7％。结论方法方便简捷、数据可靠，可满足工作场所空气中24种金属及其化合物同时测定的要求。
Objective To establish a method for determination of the levels of 24 metal elements and their compounds in the air of workplace by inductively coupled plasma-atomic emission spectroscopy (ICP-AES).Methods Sampling filters were digested by microware,and diluted to 25 ml.Twenty-four elements (Mg,Ni,K,Mo,Zn,Ca,Ba,Pb,Mn,Cd,Cr,Co,Cu,Sr,Bi,Tl,Sn,Li,Sb,Zr,In,V,Y,and Be) were simultaneously measured by ICP-AES.Results The detection limits for 24 elements were 0.001～0.029 mg/L; liner correlation coefficient r values were all equal to or above 0.9994; the relative standard derivations were less than 5％; the recovery rates were 91.2％～103.9％; the degradation rates in 7 days were less than 9.7％.Conclusion ICP-AES technique is a simple,rapid,accurate,and reliable method,which can be used to measure 24 metal elements and their compounds in the air of workplace.
出处
《中华劳动卫生职业病杂志》
CAS
CSCD
北大核心
2014年第6期456-458,共3页
Chinese Journal of Industrial Hygiene and Occupational Diseases
