摘要
应用电感耦合等离子体质谱法(ICP-MS)测定了电焊作业场所空气中锰、铬、镍、铜、钼、钴、钒、钨、铅、锌等10种金属元素。用滤膜收集空气中固态物质,并使其消化溶解于硝酸-过氧化氢(3+2)混合液中。采用标准模式进行ICP-MS分析。以175Lu作为内标。上述10种元素的质量浓度在一定范围内呈线性,各元素的检出限(3S/N)在0.02~0.48μg·L^(-1)之间。按标准加入法进行方法的回收试验,测得回收率在96.2%~109%之间,测定值的相对标准偏差(n=7)均小于6.0%。
ICP-MS was applied to the determination of 10 metal elements, i. e. , Mn, Cr, Ni, Cu, Mo, Co, V, W, Pb and Zn, in air of welding workplace. The solid particles in air were collected on filtering membrane and digested with a mixture of nitric acid-hydrogen peroxide （3＋2）. The sample solution was used for ICP-MS analysis under standard mode, using ^175 Lu as internal standard. Linearity for the 10 elements was kept between definite mass concentration ranges. Values of detection limits （3S/N） for the 10 elements were found in the range of 0. 02- 0. 48μg·L^-1. Recovery of the method was tested by standard addition method, giving values ranged from 96.2% to 109%. Values of RSDs （n=7） were less than 6.0%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2016年第9期1045-1048,共4页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
