岩矿测试2013，Vol.32Issue(2)：254-257,4.
粉末压片制样-波长色散X射线荧光光谱法测定进口铜矿石中的氟
Determination of Fluorine in Import Copper Ores by Wavelength Dispersive X-ray Fluorescence Spectrometry with Pressed Powder Preparation
摘要
Abstract
Fluorine content in geological sample ore is often detected by Fluorine Ion Selective Electrode. This method does not meet the demands of analysing large amounts of imported copper ores, due to it being a complicated procedure with a lengthy analysis period. Major and minor components in copper ores have been detected by X-ray Fluorescence Spectrometry using the fusion method for sample preparation, but this method cannot detect fluorine content. In this paper, the method for detecting fluorine content in imported copper ores is presented by using Wavelength Dispersive X-ray Fluorescence Spectrometry with pressed powder preparation. A calibration curve was established by using fifteen practical imported copper ore samples whose granularity was 0. 074 mm. The application of the empirical coefficient method significantly reduced the particle and mineral effect, and the matrix effect. The relative standard deviation ( RSD, n -11 ) of fluorine determined in imported copper ores was 0. 30% . The detection limit of the method was 2. 4 μg/g and the measuring range was from 0. 030 % to 0. 20%. The method has been applied to the determination of fluorine in standard materials and practical samples, and the analytical results were in good agreement with certified values of standard materials and values of practical samples determined by Fluorine Ion Selective Electrode. This method meets the routine inspection needs of fluorine content in imported copper ores, which is less than 0. 10% .关键词
进口铜矿石/氟/粉末压片制样/X射线荧光光谱法Key words
import copper ore/ fluorine/ pressed powder preparation/ X-ray Fluorescence Spectrometry分类
天文与地球科学引用本文复制引用
唐梦奇,刘顺琼,袁焕明,谢毓群,刘国文,罗明贵..粉末压片制样-波长色散X射线荧光光谱法测定进口铜矿石中的氟[J].岩矿测试,2013,32(2):254-257,4.基金项目
广西自然科学基金项目(桂科自0991295) （桂科自0991295）
广西出入境检验检疫局科研项目(2011K015) （2011K015）
