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- universal primary standard substance 通用基准物
- Study of Drying primary Standard Substances by Microwave in Lab 实验室常用基准物质的微波干燥实验
- primary standard substance 基准物
- Objective:To standard substance of Crebanine(Cre). 目的:制备含量测定用克班宁对照品。
- Check the solution against a primary standard. 对照原来的标准液来检验此溶液。
- Objective: To standard substance of Crebanine (Cre). 摘要目的：制备含量测定用克班宁对照品。
- Study on extending measurement range of viscosity primary standard. 扩大粘度基准量程的研究。
- 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 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。
- A new automated spectro radiometric calibration system is used to establish the new national primary standard of color temperature. 用一个自动的光谱辐射校准系统建立新的国家色温度基准。
- This paper briefly describes the principle, structure and performances of the national primary standard manometer built at the NIM in 1986. 本文概要介绍中国计量科学研究院于1986年建立的国家气压基准器的原理、结构和性能。
- Using methanol as solvent and sodium methanol standard solution as titrant,the certification of NTO standard substance was investigated by non-aqueous titration. 以甲醇为溶剂,采用甲醇钠溶液作为滴定剂,通过非水滴定法对NTO的定值方法进行研究,选择了最佳条件。
- Our company is specialized in trading chemical reagent, food additive, pharmaceutical adjuvant, standard substance and laboratory consumables, totally over 4000 types. 我公司专业经营化学试剂、食品添加剂、医药辅料，标准品及实验室消耗品，品种达4000余种，行销全国三十多个省市、自治区。
- Objective To establish a simple and quick method for preparation of human B lymphocyte stimulator receptor-BCMA gene expression level quantitative standard substance. 目的建立一种简便快速BCMA基因表达水平定量标准品的制备方法。
- All date issued are traceable to National and International Primary Standards of verification. 本中心所出具的数据均可溯源到国际和国家计量基准。
- For some research purposes and possibly for referee work, analyzed primary standards may be obtained from the U.S. Bureau of Standards. 对于某些研究工作和仲裁工作，可以从美国标准局获得经过分析的一级标准物。
