Elemental Analysis of Copper-Zinc Ores by Total Reflection X-Ray Fluorescence using Nonaqueous Suspensions

被引：14
作者：
Alov, Nikolai [1 ]
Sharanov, Pavel [1 ]
机构：
[1] Lomonosov Moscow State Univ, Dept Chem, Moscow 119991, Russia
来源：
ANALYTICAL LETTERS | 2018年 / 51卷 / 11期
基金：
俄罗斯科学基金会;
关键词：
Copper-zinc ores; nonaqueous suspensions; sample preparation; total reflection X-ray fluorescence analysis; SPECTROMETRY; SAMPLES; SOLIDS;
D O I：
10.1080/00032719.2017.1390758
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Novel rapid determination of copper-zinc ore elemental composition by total reflection X-ray fluorescence (TXRF) is proposed. Approaches for solid state sample analysis by TXRF are provided. The sample preparation is chosen to obtain the suspensions in ethylene glycol. The optimum suspension preparation conditions (sample mass, volume of dispersion medium) and the measurement conditions (internal standard element, spectra acquisition time) were determined. The sedimentation stability of suspensions was studied. It was found that the suspensions remain stable for approximately 2min, which is sufficiently long for the sampling the suspension. The proposed technique allows determining the elemental composition of solid ore samples without sample digestion. The sample preparation time takes approximately 20min. The relative standard deviation of the analytical results did not exceed 10%.
引用
收藏
页码：1789 / 1795
页数：7
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