USP currently offers more than 3,500 Reference Standards—highly characterized specimens of drug substances, excipients, food ingredients, impurities, degradation products, dietary supplements, compendial reagents and performance calibrators. Click below to download the full list. Access the USP Store to see a list of new product releases.

USP offers over 7,000 USP Reference Standards, highly characterized physical specimens of drug substances, excipients, food ingredients, impurities, degradation products, dietary supplements, compendial reagents, and performance calibrators.

Grow the clostridial test strain under anaerobic condi-tions in Reinforced Medium for Clostridia at 30° to 35° for 24 to 48 hours. As an alternative to preparing and then diluting down a fresh suspension of vegetative cells of Cl. sporogenes, a stable spore sus-pension is …

Pharmaceutical aerosols are products that are packaged under pressure and contain therapeutically active ingredients that are released upon activation of an appropriate valve system.

Portions of the present general chapter text that are national USP–NF text, and therefore not part of the harmonized text, are marked with symbols (♦♦) to specify this fact. ♦This chapter describes general procedures, definitions, and calculations of common parameters and generally applicable requirements for system suitability.

在线查询美国药典数据库，以英文药品通用名、专论名为关键字，支持模糊检索。 *Search by Drug name,Monograph name. 数据库说明: 美国药典（United States Pharmacopoeia，简称USP）。U.S. Pharmacopeia / National Formulary《美国药典/国家处方集》（简称USP/NF）是由美国政府所属的美国药典委员会（The United States Pharmacopeial Convention）编辑出版。 USP于1820年出第一版，1950年以后每5年出一次修订版，到2009年已出至第32版。 …

一般化学试剂的品级：一级试剂 二级试剂 三级试剂 四级试剂。 国内标准名称：优级纯（保证试剂）、分析纯、化学纯 、实验试剂，国内简写代号：GR AR CP L按杂质含量的多少分： 实验试剂：缩写为LR，又称四级试剂。 化学纯试剂：缩写为CP，又称三级试剂，一般瓶上用深蓝色标签。 分析纯试剂：缩写为AR，又称二级试剂，一般瓶上用红色标签。 基准试剂：缩写为PT,专门作为基准物用，可直接配制标准溶液。 光谱纯试剂：缩写为SP，表示光谱纯净。 但由于有机物在光 …

The types of chromatography useful in qualitative and quantitative analysis that are employed in the USP procedures are column, gas, paper, thin-layer, (including high-performance thin-layer chromatography), and pressurized liquid chromatography (commonly called high-pressure or high-performance liquid chromatography). Paper and thin-layer ...

The MP-443 Grach (Russian: MP-443 Грач[1]) is Russian standard military-issue side arm. It was developed under designation "Grach" in response to Russian military trials, which began in 1993. In 2003, it was adopted under designation PYa[2] (GRAU index 6P35) as a …

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