简要说明：同晟牌的DL-酪氨酸556-03-6产品：估价：1，规格：完善，产品系列编号：齐全

　　 

Item	Standard	Analysis data
State of solution (Transmittance)	Not less than 95.0%	98.1%
Chloride (Cl)	Not more than0.10%	0.015%
Heavy metal(Pb)	Not more than 10ppm	<10ppm
Arsenic(As2O3)	Not more than 2ppm	<2ppm
Iron (Fe)	Not more than 10ppm	8ppm
Other amino acids	Chromatographically not  detectable	comforms
Loss on drying	Not more than 0.30%	0.20%
Residue on ignition(sulfated)	Not more than 0.30%	0.15%
Assay	98.0 to101.0%	99.2%