Determination of free selenomethionine in nutritional supplements by high-performance liquid chromatography coupled with thermochemical hydride generation atomic absorption spectrometry

The Analyst ◽  
1995 ◽  
Vol 120 (2) ◽  
pp. 395 ◽  
Author(s):  
G. Matni ◽  
R. Azani ◽  
M. R. Van Calsteren ◽  
M. C. Bissonnette ◽  
J. S. Blais
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
High Performance ◽  
Hydride Generation ◽  
Nutritional Supplements ◽  
Absorption Spectrometry

scholarly journals Determination of inorganic arsenic species As(III) and As(V) by high performance liquid chromatography with hydride generation atomic absorption spectrometry detection

2004 ◽  
Vol 2 (1) ◽  
pp. 82-90 ◽  
Author(s):  
P. Niedzielski ◽  
M. Siepak ◽  
K. Novotny
Keyword(s):  
High Performance Liquid Chromatography ◽  
Liquid Chromatography ◽  
Atomic Absorption Spectrometry ◽  
Ground Water ◽  
Atomic Absorption ◽  
High Performance ◽  
Hydride Generation ◽  
Absorption Spectrometry ◽  
Arsenic Species

AbstractThe paper presents the principles and advantages of a technique combining high performance liquid chromatography and hydride generation atomic absorption spectrometry (HPLC-HGAAS) applied to speciation analysis of inorganic species of arsenic As(III) and As(V) in ground water samples. With separation of the arsenic species on an ion-exchange column in the chromatographic system and their detection by the hydride generation atomic absorption spectrometry, the separation of the analytical signals of the arsenic species was excellent at the limits of determination of 1.5 ng/ml As(III) and 2.2 ng/ml As(V) and RSD of 4.3% and 7.8% for the concentration of 25 ng/ml. The hyphenated technique has been applied for determination of arsenic in polluted ground water in the course of the study on migration of micropollutants. For total arsenic concentration two independent methods: HGICP-OES and HGAAS were used for comparison of results of real samples analysis.

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