Claims
- 1. A lysing agent for whole blood comprising a mixture of an aqueous solution of:
- a. a short chain aliphatic aldehyde with carbon chain length of one to four
- b. an alkali or alkaline earth salt of a weak acid, and
- c. a polyhydric alcohol.
- 2. A lysing agent in accordance with claim 1 wherein said aldehyde is selected from the group consisting of formaldehyde and butryaldehyde.
- 3. A lysing agent in accordance with claim 1 wherein said alkali or alkaline earth salt of a weak acid is selected from the group consisting of sodium and potassium salts of citrate, phosphate, acetate, formate, ascorbate and bicarbonate.
- 4. A lysing agent in accordance with claim 1 wherein said polyhydric alcohol is selected from the group consisting of glycerol, diethylene glycol and polyethylene glycol.
- 5. A lysing agent in accordance with claim 1 wherein said aldehyde is present at a level of from about 0.5 to about 4 percent.
- 6. A lysing agent in accordance with claim 1 wherein said alkali or alkaline earth salt of a weak acid is present at a level of from about 0.1 to about 1 percent.
- 7. A lysing agent in accordance with claim 1 wherein said polyhydric alcohol is present at a level of from about 1 to about 6 percent.
- 8. A lysing agent in accordance with claim 1 comprising a mixture of an aqueous solution of formaldehyde, diethylene glycol and sodium citrate.
- 9. A lysing agent in accordance with claim 8 wherein said formaldehyde is present at a level of from about 0.5 to about 4 percent, said sodium citrate is present at a level of from about 0.1 to about 1.0 percent and said diethylene glycol is present at a level of from about 1 to about 6 percent.
- 10. A lysing agent in accordance with claim 7 wherein said formaldehyde is present at a level of about 1 percent, said sodium citrate is present at about 0.25 percent and said diethylene glycol is present at a level of about 3 percent.
- 11. A lysing agent in accordance with claim 1 wherein the pH of the aqueous solution is between 7.2 and 8.2.
- 12. A lysing agent for whole blood comprising a mixture of an aqueous solution of:
- (a) formaldehyde;
- (b) sodium citrate;
- (c) diethylene glycol; and
- (d) distilled water.
- 13. A lysing agent in accordance with claim 12 wherein the percentage of formaldehyde by weight is one percent.
- 14. A lysing agent in accordance with claim 12 wherein the percentage of sodium citrate by weight is 0.25 percent.
- 15. A lysing agent in accordance with claim 12 wherein rthe percentage by weight of diethylene glycol is three percent.
Parent Case Info
This is a division of application Ser. No. 610,152 filed May 14, 1984, U.S. Pat. No. 4,654,312.
US Referenced Citations (2)
Divisions (1)
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Number |
Date |
Country |
Parent |
610152 |
May 1984 |
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