熔片—X射线荧光光谱法测定海洋沉积物中的主量氧化物成分

Frit sample—X-ray fluorescence spectrometry to determine the main oxides in marine sediments

本文采用熔片法制样,用Axiox max型波长色散X荧光光谱仪测定海洋沉积物中主量氧化物成分SiO2、Al2O3、Fe2O3、CaO,用于海洋沉积物标准物质研制的定值检测。通过帕纳科SuperQ6.0软件综合校正元素间的基体效应。方法经与标准物质检验对照,结果与标样值符合。本实验给出了存放超过二十年的海洋沉积物样中氧化物含量数值,可与当代采集的海洋沉积物样中氧化物含量做对比,反应出长期以来海底无机成分的变化情况。

In this paper,the fuse method is used to prepare samples,and the Axiox max wavelength dispersive X-ray fluores⁃cence spectrometer is used to determine the main oxides SiO2、Al2O3、Fe2O3 and CaO in marine sediment sputtering,which are used for the calibration detection of marine sediment reference materials.Through the Pana method,the result is consis⁃tent with the standard sample value.This experiment marks the value of oxide content in marine sediment samples that have been placed for more than 20 years,which can be compared with the oxide content in marine sediment samples collected to⁃day,reflecting the long-term changes in the inorganic composition of the seafloor.