Test Items

Standard

Appearance

White to off-white powder

HPLC

≥99%

Heavy Metals (Pb)

Not more than 10PPM

Assay

98.5to100.5%

Chioride(CI)

Not more than0.020%

Ammonium(NH₄)

Not more than 0.02%

Residue on ignition

Not more than 0.15%

Sulfate(SO₄)

Not more than 0.020%

Loss on Drying

Not more than 0.20%

Lron(Fe)

Not less than 30ppm

Arsenic(As₂O₃)

Not more than 1ppm

Other amino acids

Chromatographically not detectable