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Test | Specification | Results |
---|---|---|
Characteristic | Brown-dark | Conforms |
Identification | ||
A: Iron | Positive | Positive |
B: Sucrose | Conforms | Conforms |
C: Molecular Weight | Mw 34,000~60,000 Da MN not less than 24,000 Da Mw/MN not more than 1.7 | Mw : 42048 MN : 29363 Mw/MN: 1.4 |
PH ( 2.0%w/v Fe) | 9.0~11.1 at 20°C | 10.5 |
Turbidity | 4.4~5.3 | 4.6 |
Absence of Low-molecular Weight Fe(II) and Fe (III) complexes | Absent | Absent |
Limit of Iron (II) (2.0% w/v Fe3+) | ≤0.4% | 0.002 |
Chloride content (w/w) | 0.025%~0.055% | 0.0004 |
The ratio of Chloride and Iron | 7.0~14.0mg CL/g Fe | 10.2 mg CL/g Fe |
Assay for Sucrose (w/w) | 45.0%~65.0% | 0.556 |
Assay for Iron (w/w) | 3.5%~4.0% | 0.039 |
The Ration of Sucrose and Iron | 13.0~17.0 | 14.1 |
Bacterial Endotoxins | ≤3EU/mg Fe | Conforms |
Microbial limits | Total bacterial content ≤ 100CFU/g Mould/Yeast ≤10 CFU/g E.coli. And Salmonella: absence in 1g | Conforms |
Osmolarity ( 2.0% w/v Fe3+) | 1150~1350mosmol/L | 1285mosmol/L |
Specific gravity ( 2.0% w/v Fe3+) | 1.135~1.165 at 20°C | 1.151 |