Test Items

Limit

Identification

Specific rotation

State of Solution

(Transmittance)  

Chloride(CL)

 Ammonium(NH₄)

 Sulfate(SO₄)

Iron(Fe)

Heavy  metals(Pb) 

Arsenic(AS₂ O₃)

 Other  amino  acids

Loss on drying

Residue on ignition

(sulfated)

Assay

PH

Conforms

between +26.9 ° to +27.9 ° 

Clear and colorless

Not less than 98.0%

not more than 0.020%

not  more  than  0.020%     

not more than 0.020%

not  more  than  10ppm

not  more  than  10ppm

not  more  than  1ppm

Chromatographicall  not  detectable

not  more  than  0.50%

not  more  than  0.10%

99.0%~101.0%

  10.5  to  12.0     

Glycine

L-Cysteine

L-Leucine

L-Aspartic acid

DL-Alanine

L-Cysteine anhy

L-Proline

L-Cystine

L-Alanine

L-Cysteine mono

L-Methionine

L-Tryptophan

DL-Methionine

L-Threonine

L-Tyrosine

L-Arginine

L-Lysine HCL

Disodium succinate

L-Glutamic acid

L-Valine

L-Isoleucine

L-Ornithine mono