摘要
采用电感耦合等离子体原子发射光谱法测定真假紫砂壶中砷、钡、铋、镉、铬、铁、汞、锰、镍、铅、锑和锡等12种重金属元素。紫砂壶样品用盐酸（10＋90）溶液浸泡4h,仪器高频功率为1 150 W,辅助气流量0.5L·min-1,载气流量0.5~0.6L·min-1,观察高度9mm。12个元素的质量浓度均在5.00 mg·L-1以内与其发射强度呈线性关系,方法的检出限（3s/k）在0.002~0.010mg·L-1之间。加标回收率在93.0%~105%之间,测定值的相对标准偏差（n=21）在0.24%~0.83%之间。
ICP-AES was applied to the determination of 12 heavy metal elements, i.e. As, Ba, Bi, Cd, Cr, Fe, Hg, Mn, Ni, Pb, Sb and Sn in Yixing teapots. The sample of Yixing teapot was immersed in hydrochloric acid （10＋90） solution for 4 h. The following parameters were used： high-frequency power： 1 150 W; auxiliary gas flow rate： 0. 5 L ·min-1; carrier gas flow rate： 0. 5-0. 6 L·min-1 and the observation height： 9 mm Linear relationships between values of emission intensity and mass concentration of the 12 heavy metal elements were kept in the range within 5.00 mg·L-1 , with detection limits （3s/k） in the range of 0. 002-0. 010 mg · L-1. Values of recovery found by standard addition method were in the range of 93.0%-105%, and values of RSD＇s （n=21） in the range of 0. 24%-0. 83%.
出处
《理化检验（化学分册）》
CAS
CSCD
北大核心
2015年第5期642-646,共5页
Physical Testing and Chemical Analysis(Part B:Chemical Analysis)
