精氨酸-谷氨酸 4320-30-3
Item
Standard
Analysis data
Appearance
White
crystalline powder
Conforms
Specific
rotation[α]20/D
(C=8
6N HCl)
+28.0
to ~30.0Degree
28.18°
Transmittance
Not less than 98.0%
98.1%
Chloride
(Cl)
Not
more than 0.020%
0.018%
Ammonium
(NH4)
Not
more than 0.02%
<0.02%
Sulfate
(SO4)
Not
more than 0.030%
0.008%
Iron
(Fe)
Not
more than 10ppm
<10ppm
Heavy
metal(Pb)
Not
more than 10ppm
<10ppm
Arsenic(As2O3)
Not
more than 1ppm
<1ppm
Other
Amino Acids
Chromatographically
Not
detectable
Conforms
Water
Not
more than 5.0%
2.15%
Residue
on ignition(sulfated)
Not
more than 0.20%
0.10%
Assay
98.5%~101.0%
98.88%
PH
6.0
to 7.5
6.8
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