镍基物料中铁分析方法建立  

Establishment of Analysis Method for Iron in Nickel-based Materials

作　　者：李霞[1] 宁骏斌 李涵 刘群 李春芳 LI Xia;NING Jun-bin;LI Han;LIU Qun;LI Chun-fang(Testing Center of Jinchuan Group Co.,Ltd.;Jinchuan Group Engineering Construction Co.,Ltd.)

机构地区：[1]金川集团股份有限公司检测中心 [2]金川集团工程建设有限公司

出　　处：《中国标准化》2024年第7期221-224,共4页China Standardization

摘　　要：本研究采用氢氧化镧为载体,在pH=10的氨性缓冲溶液中共沉淀富集分离铁,使用空气-乙炔火焰,于原子吸收分光光度计波长248.3 nm处测定铁。结果表明,原子吸收法测定铁样品的RSD在3.21%~12.85%,加标回收率为90.0%~105.0%。This paper uses lanthanum hydroxide as a carrier to co-precipitate,enrich and separate iron in an ammoniacal buffer solution at pH=10,and uses an air-acetylene flame to measure iron at a wavelength of 248.3 nm with an atomic absorption spectrophotometer.The results show that the RSD of iron samples measured by atomic absorption method is 3.21%~12.85%,and the recovery rate of standard addition is 90.0%~105.0%.

关 键 词：火焰原子吸收光谱法 镍基物料 铁分析方法 氢氧化镧 

分 类 号：TG115.3[金属学及工艺—物理冶金]