摘要 |
A sterile aqueous specimen collection fluid containing a buffer, an aliphatic aldehyde at a concentration of 0.15M to 3.4M, and one or more heavy metal salts at a concentration of 0.2x10-3M to 0.2M, and having a pH of 6.8 to 8.0. Also disclosed is a method of colleting a specimen with such a fluid for haematological analysis. |