What does standard mean? import standard
Standard substances refer to reference substances used for the determination of content or potency in biological assays, antibiotics or biological drugs, expressed in units of potency (U). We often say that standard substances, reference substances, standard samples, reference substances, etc., all have the same meaning. They are translated according to the English name reference material, and are also called analytical standards abroad. This type of chemical substances is often small in weight and expensive. Common specifications are 20mg, 100mg, 250mg and other specifications. To buy standards and reference substances, you can go to the National Standard Network!
What are the brands of imported standard products?
Imported standards mainly include:United States Pharmacopoeia USP standard、European Pharmacopoeia EP standard、LGC standard、BP standardOther small-scale standard product manufacturers mainly include: BRAND, SPEX, CertiPrep, VITLAB, AMRESCO, MBH, CATO, ChemService, Dr. A, ISO, hamilton, Reagecon, wellington, TRC, Capp, Chromadex, CDN, Chiron, TLC, Frontier, CIL, Key, Organics, Molcan, Witega, TCI, ACROS, Cerilliant, CaroteNature, FLU KA, Apollo, Fluorochem, APS C, JT Baker, Longchang Ruibiao, Accstandard, ROTA, SE RVA, Matrix, Inorganic, JP, NSI, Lc, Laboratorie, Wib by, Conostan, NIES, larodan, Sigma, ISOLAB, Echelon, ULTRA, Nuchek, Medical, California 65, ERM, NIST, SGE, ChemBridge, NRC, STREM. Purchase and inquiry of imported standard products can go to the National Standard Products Network. National Standard Products Network specializes in providing a series of products such as domestic reference substances, standard samples, reference materials, imported standards, and impurity standards.
