Arsenic and antimony speciation analysis in copper electrolyte by liquid chromatography coupled to hydride generation atomic fluorescence spectrometry (HPLC-HG-AFS)

2020 ◽  
Vol 12 (14) ◽  
pp. 1943-1948 ◽  
Author(s):  
Ana Isabel González de las Torres ◽  
Michael S. Moats ◽  
Guillermo Ríos ◽  
Ana Rodríguez Almansa ◽  
Daniel Sánchez-Rodas
Keyword(s):  
Liquid Chromatography ◽  
Hydride Generation ◽  
Speciation Analysis ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Redox Couples ◽  
Copper Electrolyte ◽  
Novel Method ◽  
Antimony Speciation

A novel method based on HPLC-HG-AFS is proposed for the determination of As and Sb redox couples in in copper electrolyte samples, which are characterized by extreme acidity and high metallic content (Cu and Ni in the g L−1 range).

Speciation Analysis of Inorganic Arsenic in Coal Samples

2012 ◽  
Vol 610-613 ◽  
pp. 1991-1995
Author(s):  
Mei Sun ◽  
Gui Jiang Liu ◽  
Qiang Hua Wu ◽  
Wenqi Liu
Keyword(s):  
Hydride Generation ◽  
Inorganic Arsenic ◽  
Speciation Analysis ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Microwave Assisted ◽  
Assisted Extraction ◽  
Relative Standard ◽  
Optimized Conditions

A new method was developed for the speciation of inorganic arsenic in coal samples by liquid chromatography coupled to hydride generation atomic fluorescence spectrometry after microwave-assisted extraction. Effective extract of As(III), As(V) in coal sample was achieved by 1.0molL-1 H3PO4 and 0.1 molL-1ascorbic acid. Under the optimized conditions, the limits of detection were 0.01 ugL-1and 0.02 ugL-1for As(III), As(V). The relative standard deviation were 2.4 %, 3.3 % (c= 20.0 gL-1, n=7). The proposed method was successfully applied for the determination of speciation of inorganic arsenic in coal samples and GBW11117.

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