英语语法分析

A rapid micromethod for the determination of nitrogen in organic compounds, such as pyridine, pyrimidine, purine, thiazole, alkaloids and amino acids, is described.

本文提出嘌呤、嘧啶、呲啶、噻唑、生物碱和氨基酸等类有机化合物中氮的快速微量测定法。