Preservative solutions containing sodium dehydroacetate with or without sodium borate decahydrate and/or disodium edetate
First Claim
1. A multi-purpose hypertonic phosphate solution for use in automated cell counters, as a cleaning solution in hemoglobinometry and cleaning solutions used on all types of automated cell counters with a lytic agent concentrate consisting essentially of:
- (a) an osmotically balanced solution of sodium chloride, potassium chloride, sodium phosphate dibasic and sodium phosphate monobasic, and;
(b) sodium dehydroacetate, said solution being an aqueous electrolyte solution wherein the sodium dehydroacetate is bacteriostatic in nature.
0 Assignments
0 Petitions
Accused Products
Abstract
Sodium azide is used as a preservative or bacteriostatic agent of various solutions such as hypertonic phosphate solution, cleaning solutions used in electronic counting equipment, Sorensen'"'"'s phosphate buffers, lytic agents E and F and the like. Unfortunately, sodium azide, when combined with lead or copper in sink plumbing can produce explosive substances and also is capable of generating toxic gases. By using sodium dehydroacetate with or without sodium borate decahydrate and/or disodium edetate, the disadvantages are removed and at the same time the efficiency of the various solutions is not affected adversely.
-
Citations
11 Claims
-
1. A multi-purpose hypertonic phosphate solution for use in automated cell counters, as a cleaning solution in hemoglobinometry and cleaning solutions used on all types of automated cell counters with a lytic agent concentrate consisting essentially of:
-
(a) an osmotically balanced solution of sodium chloride, potassium chloride, sodium phosphate dibasic and sodium phosphate monobasic, and; (b) sodium dehydroacetate, said solution being an aqueous electrolyte solution wherein the sodium dehydroacetate is bacteriostatic in nature. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
Specification