dl-Methionin

Description

White crystals or crystalline powder

Identification(IR)

concordant with the reference  spectrum

assay

99.0~100.5%

PH

5.6~6.1

State of solution

(Transmittance T430)

clear & colorless

≥98.0%

Chloride(Cl)

≤0.02%

Ammonium(NH4)

≤0.02%

Sulfate(SO4)

≤0.02%

Iron(Fe)

≤10ppm

Heavy metals(Pb)

≤10ppm

Arsenic(As)

≤1ppm

Other amino acids

≤0.50%

Loss on drying

≤0.30%

Residue on ignition

≤0.10%

 Conclusion 

Passed test according to the Standard of AJI92.