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- The components of methylhydracyclosiloxane were analyzed quantificationally by superficial unitary method and internal standard method,taking n decane as internal standard substance. 分别采用面积归一法和内标法(正癸烷为内标物)对甲基氢混合环硅氧烷馏出液和釜料中各组分进行定量分析。
- Keywords Cefalotin Sodium;Residual Solvents;internal standard substance; 关键词头孢噻吩钠;残留溶剂;内标物;
- Keywords Gemifibrozil;internal standard standard substance;residual solvents; 吉非罗齐;内标物;残留溶剂;
- Objective:To standard substance of Crebanine(Cre). 目的:制备含量测定用克班宁对照品。
- Internal standard substance 内标物
- The internal standard was maprotiline. 内标为马普替林 ;
- Objective: To standard substance of Crebanine (Cre). 摘要目的：制备含量测定用克班宁对照品。
- The kilogram is the international standard of weight. 公斤是国际通用的重量标准。
- Using DB- FFAP Wide Bore capillary column and n-propanol as internal standard. 采用DB-FFAP大口径毛细管柱,以正丙醇为内标进行定量。
- Objective: To study the preparation and analysis technique of standard substance picrinine. 目的:以灯台叶为原料,研究鸭脚树叶碱对照品的制备与分析技术。
- The kilometreis the international standard. 千米是国际通用的标准。
- It means "International Standard Serial Number". 它的意思是“国际标准期刊刊号”。
- It conforms to the international standard. 它符合国际比赛标准要求。
- The content of flavonoids in waste liquid of alcohol production from sugarcane molasses was determined by spectrophotometry using rutin as standard substance. 以芦丁为标准物质,用分光光度法测定了甘蔗糖蜜酒精废液中黄酮类化合物的含量。
- The chymopapain whose purity equal to standard substance was get by twice protein chromatography on Macro-Prep High S Support. 采用硫酸铵分级沉淀与离子交换相结合的方法从市售的木瓜蛋白酶干粉中分离纯化木瓜凝乳蛋白酶。
- The determination using boric acid-citric acid colormetry with the standard substance of Rutin by UV-visible recording spectrophotometer. 通过正交试验确定了最佳提取工艺。
- Methods: Volumetric analysis combined with quantitative microscopy was used to determine Saiga tatarica content by sample itself as standard substance. 方法:以被测物自身为标准,代替参比物,并采用容量分析法配合显微定量法测定羚羊角的含量。
- Their pureness deterimined in methods of two different priciples and conformed to the technical norm of first grade military standard substance. 四种标准物质采用两种不同方法定值，结果均达到一级军用标准物质要求。
- We find your machine tools up to the international standard. 我们认为贵公司的机床达到了国际标准。
- We found your machine tools up to the international standard. 我们认为贵公司的机床达到了国际标准。
