Methods: The contents of levofloxacin and tinidazole in auristilla were determined by dual wavelength spectrophotometry.方法采用双波长分光光度法直接测定左氧唑滴耳液中主药的含量,以留样观察法考察其稳定性.The ergosterol content in mycelia of Agaricus brasiliensis...
"Helen had something to eat before she left," put in Cecil anxiously.“海伦走之前吃了点儿东西，”塞西尔急忙插了一句。Australia, put in to bat, made a cautious start.轮到澳大利亚队出场击球，他们开始打得很谨慎。She put in some clothes, odds and ends, and make-up.她将一些衣...
Vapour phase chromatography has rapidly become one of the most successful analytical techniques.气相色谱法已经迅速成为最成功的分析方法之一.Lectins in haemolymph of Sarcophaga peregrina larvae and pupa were purified by affinity chromatography...