热水解-离子选择电极法测定海相碳酸盐岩中的氟

基金项目:

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）

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

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25.1 μg/g，精密度(RSD，n=11) 为5.28%，回收率为96.5%～107.8%，结果令人满意。
- 热水解； /
- 离子选择电极法； /
- 海相碳酸盐岩； /
- 氟
Abstract: 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.
- pyrohydrolysis /
- /
- ionselective /
- electrode