摘要
通过探究样品溶解及测定方法存在的问题,确立了样品经硝酸-氢氟酸-高氯酸溶解,硫酸助溶,在盐酸介质中电感耦合等离子体发射光谱(ICP-OES)法直接测定矿石中锑的方法,其方法检出限为1.32μg/g,测定下限为5.28μg/g,相对标准偏差(RSD)小于5%,经标准物质和实际样品验证表明,方法简便、易行,结果准确,是现有矿石中锑测定方法的有效补充。
To solve the existing problem in the method of dissolving and measurement in inductively coupled plasma-optical emission spectrometry （ICP-OES）, effects of nitric acid, hydrofluoric acid, perchloric acid on the dissolution and determination of the samples were investigated. After dissolving in nitric acid, hydrofluoric acid, perchloric acid and sulfuric acid, the concentration was determined by ICP- OES in hydrochloric acid. The limit of detection is lower than 1.32 μg/g, the limit of determination is below 5.28 μg/g,and relative standard deviation is less than 5%. The method is simple,easy and accurate, and verified by standard samples and test samples. This proposed methodis an effective supplement to the existing detection methods of antimony in ores.
作者
陈丽珠
曹胜
CHEN Lizhu;CAO Sheng(Ministry of Land and Resources Kunming Mineral Resource Supervision Inspecting Center, Dali , Yunnan 671000, China)
出处
《中国无机分析化学》
CAS
2017年第4期60-63,共4页
Chinese Journal of Inorganic Analytical Chemistry
关键词
电感耦合等离子体发射光谱法
矿石
锑
inductively coupled plasma-opticalemission spectrometry（ICP-OES）
ores
antimony content
