Simultaneous determination of p-arsanilic acid and roxarsone in feed by liquid chromatography-hydride generation online coupled with atomic fluorescence spectrometry

2008 ◽  
Vol 10 (8) ◽  
pp. 975 ◽  
Author(s):  
Jianjing Liu ◽  
Hongxia Yu ◽  
Haibin Song ◽  
Jing Qiu ◽  
Fengmei Sun ◽  
...  
Keyword(s):  
Liquid Chromatography ◽  
Simultaneous Determination ◽  
Hydride Generation ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Arsanilic Acid

Simultaneous Determination of Trace Antimony and Bismuth in Jilin Ginseng with Microwave Digestion Hydride Generation Atomic Fluorescence Spectrometry

2012 ◽  
Vol 549 ◽  
pp. 188-192 ◽  
Author(s):  
Shu Ying Guo ◽  
Zheng Jia Ji ◽  
Bo Feng ◽  
Jiang Bian
Keyword(s):  
Ascorbic Acid ◽  
Simultaneous Determination ◽  
Microwave Digestion ◽  
Hydride Generation ◽  
Reaction Medium ◽  
Fluorescence Spectrometry ◽  
Atomic Fluorescence Spectrometry ◽  
Atomic Fluorescence ◽  
Masking Agents

A robust, accurate and sensitive analytical procedure was developed for the simultaneous determination of trace Antimony and Bismuth in Jilin ginseng by hydride generation atomic fluorescence spectrometry. The parameters were studied systematically, such as acid concentration of the reaction medium, flow rate of the carrier gas and shield gas, the atomizer of height, etc. Ascorbic acid and thiourea were used as reducer or masking agents to enhance the generation efficiency of the volatile species of Sb and Bi. In the presence of thiourea and ascorbic acid, the influences of some coexisting elements on the determination of antimony and bismuth were investigated.

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