Title of article
Combination of LC-ICP-MS, LC-MS and NMR for investigation of the oxidative degradation of selenomethionine
Author/Authors
Gammelgaard، نويسنده , , Bente and Cornett، نويسنده , , Claus and Olsen، نويسنده , , Jّrgen and Bendahl، نويسنده , , Lars and Hansen، نويسنده , , Steen Honoré، نويسنده ,
Issue Information
ماهنامه با شماره پیاپی سال 2003
Pages
7
From page
1165
To page
1171
Abstract
Selenomethionine (SeMet) was oxidized by heating an acidic solution with hydrogen peroxide. Samples were taken before and during the oxidation process. The oxidation products were separated by cation exchange chromatography followed by ICP-MS detection to identify the selenium containing compounds as well as electrospray ionization MS detection to determine the masses of the degradation products. Furthermore, the samples were analyzed by 77Se-NMR. The first appearing degradation product was selenomethionine selenoxide, which was converted via the deaminated selenoxide to methane seleninic acid and selenite.
Keywords
selenoxide , Selenium speciation , selenomethionine
Journal title
Talanta
Serial Year
2003
Journal title
Talanta
Record number
1644437
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