精氨酸-天门冬氨酸???7675-83-4
Item
Standard
Analysis data
Appearance
White or almost crystalline powder
Conforms
Specific
rotation[α]20/D
(C=8 in 6N HCl)
+25°to +27°
25.5°
Chloride
(Cl)
Not
more than 0.05%
0.016%
Sulfate
(SO4)
Not
more than 0.03%
0.013%
Heavy
metal(Pb)
Not
more than 20ppm
6ppm
Ammonium(NH4)
Not
more than 0.02%
<0.02%
Loss
on drying
Not
more than 3.0%
0.5%
Residue on ignition(sulfated)
Not
more than 0.1%
0.08%
Assay
98.5% to 101.0%
99.2%
PH
5.5 to 7.0
6.3
Total
Plate Count
<1000 cfu / g
Conforms
Yeast&Molds
<100 cfu / g
Conforms
Salmonella
Absent/10g
Conforms
E.Coli
Absent/10g
Negative
S.aureus
Absent/10g
Negative
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