摘要
采用过氧化钠碱熔消解样品,电感耦合等离子体原子发射光谱(ICP-AES)法对锡矿石中锡含量进行了测定。当样品称样量为0.2g时,加入2g过氧化钠就能使样品消解完全。为避免水解对测定结果的影响,样品处理后应尽快进行测定。测定锡的检出限为38.4mg/kg,12次平行测定的相对标准偏差为小于5%,对标准物质的测定结果也令人满意。
A method of determination tin in tin ores was established by inductively coupled plasma-atomic emission spectrometry. 2 g Na 2 O 2 was used to digested 0.2 g samples. The samples were advised to test as soon as possible to avoid hydrolysis. The detection limit of this method is 38.4 mg/kg and the precision of measurement （RSD） is less than 5%. Satisfactory results were also obtained by testing the certified reference materials.
作者
肖柳婧
汤行
吴玉华
戴长文
XIAO Liujing;TANG Xing;WU Yuhua;DAI Changwen(Geological Testing Institute of Hunan Province,Changsha,Hunan 410007,China)
出处
《中国无机分析化学》
CAS
2018年第5期38-40,共3页
Chinese Journal of Inorganic Analytical Chemistry
关键词
锡矿石
电感耦合等离子体原子发射光谱法
碱熔
tin ore
inductively coupled plasma-atomic emission spectrometry
alkali fusion
