thiohydantoin meaning in Chinese

海硫因
硫乙内酰脲
乙内酰硫脲

Mass spectrometry technique will play more and more role in the field of sequence analysis . standard amino acid thiohydantoins are required as reference standard for development of c - terminal protein sequencing based on the thiohydantoin procedure
在蛋白质c端(异)硫氰酸法顺序测定技术中，标准氨基酸乙内酰硫脲( th - aa )的制备是必须首先要解决的问题。
However , due to the poor reactive carboxyl group of c - terminus , it is difficult to derivatize peptides topeptidyl t hiohydantoins for c - terminus , and the schlack - kumpf degradation based on thiohydantoin procedure has not yet been developed to such an efficient method as edman degradation
然而，由于c端羧基的化学性质不活泼，致使schlack - kumpf降解法的研究进展缓慢。但通过近十年的研究表明该方法是很有希望成为常规c端顺序测定的方法。
All of 19 amino acid thiohydantoins were synthesized by using free amino acids as starting materials , acetic anhydride as the carboxyl group activating reagent and tms - itc as the derivatizing reagent . the proiine thiohydantoin was prepared by using ammonium thiocyanate ( n114scn ) as the derivatizing reagent
本文以l -氨基酸为原料，采用乙酸酐作活化试剂， tms - itc作为偶联试剂，制备了19种th - aa ，另外th - pro的制备是用nh _ 4scn作为偶联试剂获得成功的。