1

性狀

Description

白色或類白色粉末或結(jié)晶狀物

White   or almost white powder, or crystalline powder

2

鑒別

Identification

    在257±2nm處應(yīng)有吸收

   The Max. absorption at 257±1nm

    A250/A260=0.79~0.89           A280/A260=0.17~0.27

3

酸度

PH

2.0~5.0

4

澄清度與顏色

Clarity and color of solution

無色澄清

Clear and Colorless

5

干燥失重

Loss on drying

≤10.0%

6

銨鹽

Ammonium salt

≤0.02%

7

蛋白質(zhì)

Protein

應(yīng)符合規(guī)定

Should comply with the standard

8

含量

Assay（on dried basis）

≥85.0%

9

純度

Purity(HPLC)

≥95.0%