Simultaneous speciation of selenomethionine and 2-hydroxy-4-methylselenobutanoic acid by HPLC-ICP MS in biological samples

被引：11
|
作者：
Vacchina, Veronique [1 ]
Moutet, Marc [2 ]
Yadan, Jean-Claude [2 ]
de Baene, Frederic [3 ]
Kudla, Bernard [3 ]
Lobinski, Ryszard [4 ]
机构：
[1] UT2A, F-64000 Pau, France
[2] Tetrahedron, F-94300 Vincennes, France
[3] EcoSolution, F-93230 Romainville, France
[4] LCABIE, UMR 5254, F-64000 Pau, France
来源：
JOURNAL OF CHROMATOGRAPHY B-ANALYTICAL TECHNOLOGIES IN THE BIOMEDICAL AND LIFE SCIENCES | 2010年 / 878卷 / 15-16期
关键词：
Selenium; Selenomethionine; NutraSelen (R); HPLC-ICP MS; SELENIUM SPECIATION;
D O I：
10.1016/j.jchromb.2010.03.002
中图分类号：
Q5 [生物化学];
学科分类号：
071010 ; 081704 ;
摘要：
An analytical method was developed for the simultaneous speciation of selenomethionine (SeMet) and 2-hydroxy-4-methylselenobutanoic acid (NutraSelen (R)), a new SeMet precursor. The compounds could be baseline resolved by ion-pairing reversed-phase HPLC using ICP MS detection. Detection limits of 1 ng mL(-1) (Se content) could be reached. SELM-1 reference material was used to validate the SeMet measurement. Additionally, the quantification of NutraSelen (R) was validated by standard addition together with checking the Se mass balance. The procedure developed was then applied to the monitoring of the conversion of NutraSelen (R) into SeMet by yeast. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：1178 / 1180
页数：3
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