Determination of Gallium,Germanium and Indium in Coal by Inductively Coupled Plasma-Mass Spectrometry with Ashing Acid Digestion

BACKGROUND: The accurate determination of gallium,germanium and indium in coal provides an important basis for geochemical exploration of the scattered elements in coal,and is of great economic significance for the comprehensive utilization of the scattered metals. The ashing conditions of germanium...

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Bibliographic Details
Published inYankuàng cèshì no. 4; p. 371
Main Authors Tang, Bi-Yu, Shi, Yi-Hua, Yang, Zhong-Ping, Qiu, Li, Gu, Xing-Qian, Peng, Guang-Ju
Format Journal Article
LanguageChinese
Published Beijing National Research Center of Geoanalysis 01.01.2018
Subjects
Acid digestion
Coal
Correlation coefficients
Economic conditions
Emission spectroscopy
Gallium
Germanium
Hydrofluoric acid
Indium
Inductively coupled plasma mass spectrometry
Interference
Mass spectrometry
Mathematical analysis
Methods
Niobium
Nitric acid
Optimization
Plasma
Scientific imaging
Sulfuric acid
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Summary:BACKGROUND: The accurate determination of gallium,germanium and indium in coal provides an important basis for geochemical exploration of the scattered elements in coal,and is of great economic significance for the comprehensive utilization of the scattered metals. The ashing conditions of germanium are strict,and the analytical results of germanium are greatly influenced by the ashing temperature. Due to the different ashing temperatures of gallium( Ga),germanium( Ge) and indium( In),the three elements could not be processed and determined simultaneously using existing analytical methods.OBJECTIVES: To develop a method for the analysis of Ga,Ge and In simultaneously,avoid the loss of Ge in the ashing and digestion processes,and to eliminate the interference in determination.METHODS: A sensitive and efficient analysis method of ashing acid digestion method combined with Inductively Coupled Plasma-Mass Spectrometry( ICP-MS) for determining Ga,Ge and In in coal was established by using the optimum ashing temper
ISSN:0254-5357