Following that, two effective additives-syclotersuphone and methenamine are found by series experiments. 然后通过大量实验筛选出两种有效添加剂环丁砜和六次甲基四胺。
New Method for Polarographic Determination of Micro Amount of Methenamine(METHEN) Based on Nitrosation Reaction 一种检测微量乌洛托品(METHEN)的新方法
Tert - Butyl phenolic curing resin was synthesized from p - ten - butylphenol and formaldehyde with methenamine as catalyst. 以六亚甲基四胺为催化剂,以对叔丁基苯酚和甲醛为原料,合成了叔丁酚醛硫化树脂。
The pathological types of 110 fungal rhinosinusitis were classified by using Gomori methenamine silver stain ing which was special for fungi. 采用真菌特异性六胺银染色方法,对110例真菌性鼻-鼻窦炎进行分型。
Each case was done by PAS, Giemsa, Gram, Grocott methenamine stain ( GMS ), fast anti-acid stain and Warthin-starry stain. 每例均作PAS反应、吉姆萨染色、Gram染色、六胺银及抗酸染色和Warthinstarry染色。