Determination of inorganic arsenic in rice by solid phase extraction and hydride generation atomic fluorescence spectrometry

2015 ◽  
Vol 7 (20) ◽  
pp. 8896-8900 ◽  
Author(s):  
Yatao Huang ◽  
Jihao Shan ◽  
Bei Fan ◽  
Yan He ◽  
Shuangmei Xia ◽  
...  
Keyword(s):  
Solid Phase ◽  
Low Cost ◽  
Accurate Determination ◽  
Hydride Generation ◽  
Inorganic Arsenic ◽  
Atomic Fluorescence Spectrometry ◽  
Food Crops ◽  
Total Arsenic ◽  
Atomic Fluorescence

Low-cost, simple methods are needed for accurate determination of iAs in food crops. Total arsenic (As) from rice was extracted and As5+ reduced to As3+. The combined As3+ was separated then quantified. This method appears suitable for general use due to its low cost.

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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