产品名称：L-缬氨酸    

Product Name: L-valine   

数 量：

Quantity:1000kgs

批 号：

Batch No:210225006

生产日期：

Producing date: 2021.02.25

取样日期：

Sampling date: 2021.02.26

报告日期：

Send out date: 2021.02.27

参照标准： 

Reference standard:  USP36

包装：

Package: 25kgs/bag

有效期：

Expiry date: 2023.02.24

    项       目

Item

规       格

Specifications

分  析  结  果

Results

性状

Description

白色晶体或结晶性粉末

White crystals or crystalline power

白色结晶性粉末

Crystallione power

含量 ,%                           ≥

Assay ,%                         min

98.5~101.5

99.6

pH值

PH

5.5~7.0

6.1

比旋度

Specific rotation[a]_D²⁵

+26.6°~+28.8°

+27.7°

干燥失重,%                       ≤

Loss on drying,%                   max

0.30

0.05

炽灼残渣，%                        

Residue on ignition，%               

≤0.1

0.03

氯化物(以Cl计),%                  ≤

Chloride (as Cl),%                  max

0.05

＜0.05

硫酸盐,%                          ≤ 

Suifate(SO₄),%                     max

0.03

＜0.03

重金属 (以Pb计),%                 ≤

Heavy metals (as Pb),%               max

0.0015

＜0.0015

铁盐(以Fe计),%                  ≤

Iron (as Fe) , %                     max

0.003

＜0.003

结论：本产品符合USP36  的要求.

Conclution: This product conforms to requirements of USP36 grade standard.