Determination of lead,cadmium and arsenic in the coating of zinccoated steel sheets by inductively coupled plasma atomic emission spectrometry after stripping with hexamine
Abstract：The determination of harmful elements including lead, cadmium and arsenic in the coating of zinccoated steel sheets by inductively coupled plasma atomic emission spectrometry (ICPAES) after stripping with hexamine (Urotropine) hydrochloric acid solution was proposed. The stripping effect of various removing solutions (including hexamine, formaldehyde, antimony chloride and thiourea) on the coating of steel was compared. In this study, the hexamine with rapid stripping speed and without pollution was selected to prepare removing solution. After stripping, the lead, cadmium and arsenic in solution was determined by ICPAES. The influence of zinc coating and matrix iron could be eliminated by standard addition method. The proposed method was applied to the analysis of zinccoated steel sheets sample. The relative standard deviation (RSD) of determination results for lead, cadmium and arsenic was 1.4%, 2.9% and 5.3%, respectively. The recoveries were in the range of 92%104%.
周明辉，唐志锟，宋武元，萧达辉. 六亚甲基四胺剥离－电感耦合等离子体原子发射光谱法测定钢材镀锌层中铅镉砷[J]. 冶金分析, 2012, 32(1): 48-51.
ZHOU Minghui,TANG Zhikun,SONG Wuyuan,XIAO Dahui. Determination of lead,cadmium and arsenic in the coating of zinccoated steel sheets by inductively coupled plasma atomic emission spectrometry after stripping with hexamine. , 2012, 32(1): 48-51.
