质量标准 项目 标准 Appearance Grayish yellow poeder Solubility (at 5 water) Clear solutionHeavy metals(as Pb) ≤1ppmLoss on drying ≤6.0 Residue on ignition ≤10Total nitrogen ≥11Amino nitrogen 5~7品名:多聚蛋白胨,聚蛋白胨,Polypepton,Polypeptone 作用:微生物细胞培养用 制造商:日本制药株式会社