摘要
采用热解齐化-原子吸收光谱法直接测定锰矿石中汞含量，对同一样品进行测定的相对标准偏差（RSD）在0．57％～5．47％之间（n=10），回收率在93．6％～96．7％之间，与冷原子吸收光谱法的方法间相对偏差为3．72％～12．67％。方法准确、快速、样品用量少，无试剂污染，最适合批量样品的测试，有应用和推广价值。
A method was introduced for the determination of mercury in manganese ores by thermal decomposition amalgamation and atomic absorption spectro photometry. Comparative test for the same sample showed that the relative standard deviation（RSD） was 0.57% - 5.47% （n = 10）, while the recovery of standard addition in the range of 93.6% - 96.7%. Inter-method deviation for CV-AAS was 3.72% - 12.67%. This method is characterized by accuracy, stability and quickness, small quantity of demand in samples, no pollution in reagent, being suitable for determination large numbers of samples, being of great value in application and generalization.
出处
《中国锰业》
2009年第4期37-39,共3页
China Manganese Industry
关键词
锰矿石
热解齐化
原子吸收光谱法
测定
汞
Manganese ores
Thermal decomposition amalgation
Atomic absorption spectrophotometry
Determi- nation
Mercury
