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%.
作者
李霞
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.)
出处
《中国标准化》
2024年第7期221-224,共4页
China Standardization
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
flame atomic absorption spectrometry
nickel-based material
iron analysis method
lanthanum hydroxide
作者简介
李霞,高级工程师,研究方向为冶金矿石、金属物料等分析。
