【摘要】 <正> 硒蛋氨酸是普遍存在于植物蛋白中的一种常见的硒氨基酸,它的测定对研究必需微量元素硒的营养以及硒与人体健康的关系有重要意义。 在蛋白质中,硒蛋氨酸总是与同系物蛋氨酸共存,其含量极微,在6mol/LHC1中水解7小时便完全分解,因此,氨基酸分析常用的酸水解—离子交换色谱分析法不适用于硒蛋氨酸的定量分析。Caldwell等更多还原

【Abstract】 A new method for the determination of selenomethionine by gas chromatography is developed by measuring methyl selenocyanate released during the reaction with CNBr. Optimal conditions of reaction and gas chromatographic analysis are described. The linear range is 10-6-55×10-8g. The detection limit is 85×10-9g. This technique has the potential for measuring trace amount of selenomethionine in plants and animals.更多还原