| 摘要 |
A stable oxidized co-enzyme NAD reagent, ready for use in photometric assay of body fluids is prepared by dissolving the co-enzyme NAD in a neutral organic solvent such as glycol (antifreeze). The product is a liquid, easily measured by volume for carrying out analytical operation, and can be stored in liquid condition at low temperatures (0 DEG C. to -20 DEG C.) without freezing and thawing.
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