
牛胰島素Insulin
| TEST | SPECIFICATION | 
| APPEARANCE | WHITE TO OFF-WHITE POWDER | 
| SOLUBILITY | CLEAR COLORLESS SOLUTION AT 2MG PLUS 1ML WATER (PH ADJUSTED TO 2.0 WITH HYDROCHLORIC ACID) | 
| ELEMENTAL ANALYSIS * | 14.5 TO 16.0% NITROGEN | 
| APPROX. 0.5% ZINC | |
| LOSS ON DRYING | NMT 10% | 
| HPLC POTENCY * | NLT 27 USP UNITS/MG | 
| RECOMMENDED RETEST | 2 YEARS | 
| NOTE | * DRY BASIS | 
| DOCUMENT # I5500/11/08/99/6 |