热水解-离子选择电极法测定海相碳酸盐岩中的氟  

Determination of Fluorine in Marine Carbonate Rocks by Pyrohydrolysis-Ion Selective Electrode Method

作　　者：高宏宇[1] 杨祥[1] 宋桢桢[1] 周朝昕[1] 

机构地区：[1]中国地质大学材料科学与化学工程学院,湖北武汉430074

出　　处：《岩矿测试》2009年第2期139-142,共4页Rock and Mineral Analysis

基　　金：中石化"海相优质烃源岩形成的地球生物学过程--烃源岩形成的生物地球化学记录及埋藏过程"项目资助(G0800-06-2S-319)

摘　　要：采用热水解法对样品进行预处理,离子选择电极法简易快速测定海相碳酸盐岩中氟元素的含量。方法检出限为25.1μg/g,精密度（RSD,n=11）为5.28%,回收率为96.5%～107.8%,结果令人满意。A method for the determination of fluorine in marine carbonate rocks by ion selective electrode with pyrohydrolysis sample pretreatment has been developed. The detection limit of the method is 25. 1 μg/g for fluorine and the recovery is 83.80% -107.90% with precision of 5.28% RSD （n = 11 ）. The method has been applied to the determination of fluorine in marine carbonate rock samples with satisfactory results and provides the advantages of high efficiency and simple operation.

关 键 词：热水解 离子选择电极法 海相碳酸盐岩 氟 

分 类 号：O657.15[理学—分析化学] O613.41[理学—化学]