Primary and secondary amines in biological fluids are selectively derivitized by reaction with esters of N-hydroxysuccinimide or N-hydroxysulfosuccinimide to form an N-acylated derivative. Those N-acylated derivatives may then be extracted into a polar organic phase and extracted. Non-electroactive amines may be made suitable for coulometric analysis by selecting the ester used so as to attach an electroactive group to the amine. For example, histamine may be reacted with the Bolton-Hunter reagent to form a suitable derivative in high yield.
生物液中的一级和二级胺可通过与N-羟基琥珀
酰亚胺酯或N-羟基磺酰琥珀
酰亚胺酯反应,选择性地脱保护基衍生化成N-酰化衍
生物。这些N-酰化衍
生物可以提取到极性有机相中进行分离。通过选择酯基,使非电活性胺适合库仑分析,将电活性基团附加到胺上。例如,
组胺可以与Bolton-Hunter试剂反应,高产率地形成适合的衍
生物。