ICP-AES法测定镀铝锌钢板镀层中的铝含量  

DETERMINATION OF ALUMINIUM CONTENT IN Al-Zn COATED STEEL BY ICP-AES

作　　者：龚思维[1] 沈泽敏[1] 楚民生[1] 王涛[1] 

机构地区：[1]上海出入境检验检疫局,上海200135

出　　处：《化学分析计量》2007年第4期42-43,共2页Chemical Analysis And Meterage

摘　　要：用50g/L的氢氧化钠溶液溶解镀铝锌钢板镀层,以盐酸溶液(1+4)进行酸化,采用ICP?AES法测定两种镀铝锌钢板镀层中的铝含量,测定结果的相对标准偏差分别为2.3%和1.4%(n=11),回收率为94.8%～98.5%。对两种镀铝锌钢板金属中铝含量测定结果的不确定度进行了评定,分别为0.10%(铝含量为4.82%)、0.9%(铝含量为54.3%)。A method was described for determination of A1 in two kinds of A1-Zn coated steel. Sample was decomposed with NaOH solution （50 g/L） , the solution was acidated by HCI （1 ＋4） and determined by ICP -AES. The relative standard deviations of two kinds of samples were 2.3% and 1.4% respectively（n = 11 ） , and the recoveries were 94.8% - 98.5%. The uncertainty of A1 content were 0.10% （ A1 content was 4.82% ） and 0.9% （ AI content was 54.3% ）.

关 键 词：镀铝锌钢板 铝含量 ICP-AES 

分 类 号：TG146.21[一般工业技术—材料科学与工程]