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Title: Reference material for establishing anion concentrations in analytical chemistry tests
Claims: What is claimed as the invention is: 1. A composition capable of use as a component of a clinical control material, comprising water and at least one water-soluble quaternary ammonium carbonate or bicarbonate, said composition including no substance which will affect assays for sodium, potassium, calcium, ammonium, chloride and iron ions. 2. The composition of claim 1 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO.sub.2 concentration of from about 10 to about 40 meq./l. 3. The composition of claim 1 wherein the amount of sodium, potassium, calcium, ammonium, chloride and iron ions is, respectively, less than about 2 millimolar, about 0.25 millimolar, about 0.5 mg/100 ml, 0.5 .mu.g./100 ml, 3 millimolar and 3 .mu.g/100 ml. 4. The composition of claim 3 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO.sub.2 concentration of from about 10 to about 40 meq./l. 5. The composition of claim 1 wherein the amount of sodium, potassium, calcium, ammonium, chloride and iron ions is, respectively, less than about 1 millimolar, 0.1 millimolar, about 0.2 mg/100 ml, 0.2 .mu.g/100 ml, 2 millimolar and 2 .mu.g./100 ml. 6. The composition of claim 5 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO.sub.2 concentration of from about 10 to about 40 meq./l. 7. A sterile composition capable of use as a component of a clinical control material, comprising water and at least one water-soluble quaternary ammonium carbonate or bicarbonate. 8. The composition of claim 7 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO.sub.2 concentration of from about 10 to about 40 meq./l. 9. A composition capable of use as a component of a clinical control material, comprising water and at least one water-soluble quaternary ammonium carbonate or bicarbonate, said composition including no substance which will affect assays for sodium, potassium, chloride, iron, phosphorus and calcium ions, urea, uric acid, creatinine, glucose, cholesterol, bilirubin, total protein, lactic acid dehydrogenase, amylase, acid phosphatase, alkaline phosphatase, thyroid hormone uptake and total thyroid hormone. 10. The composition of claim 9 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO.sub.2 concentration of from about 10 to about 40 meq./l. 11. A composition capable of use as a clinical control material, consisting essentially of at least one water-soluble quaternary ammonium carbonate or bicarbonate and at least one animal body fluid. 12. A dry composition comprising at least one dried animal body fluid and at least one water-soluble quaternary ammonium carbonate or bicarbonate. 13. The composition of claim 12 wherein the amount of salt is known. 14. The composition of claim 12 wherein the body fluid is serum. 15. The composition of claim 12 wherein the composition is in vitro. 16. A composition for use as a clinical control serum, comprising at least one animal body fluid and at least one water-soluble quaternary ammonium carbonate or bicarbonate, wherein each tetrasubstituted group of said quaternary ammonium carbonate or bicarbonate is selected from the group consisting of saturated heterocycles, unsaturated heterocycles, cycloalkenyl groups, cycloalkyl groups, and branch chain lower alkyls, normal lower alkyls and normal lower alkenyls, with each of said lower alkyls and alkenyls having eight or less carbon atoms. 17. A method of making a clinical control serum which comprises mixing a water-soluble quaternary ammonium carbonate or bicarbonate and an animal body fluid, wherein each tetrasubstituted group of said quaternary ammonium carbonate or bicarbonate is selected from the group consisting of saturated heterocycles, unsaturated heterocycles, cycloalkenyl groups, cycoalkyl groups, and branch chain lower alkyls, normal lower alkyls and normal lower alkenyls, with each of said lower alkyls and alkenyls having eight or less carbon atoms. 18. A method for making a clinical control material which comprises mixing a quaternary ammonium carbonate or bicarbonate and a dry animal body fluid. 19. A method for making a clinical control material which comprises mixing an aqueous solution of a water-soluble quaternary ammonium carbonate or bicarbonate and an animal body fluid and then lyophilizing the mixture. 20. The method of claim 19 wherein the lyophilized mixture is reconstituted in water and then assayed for at least one of its clinically significant components. 21. The method of claim 18 wherein the quaternary ammonium carbonate or bicarbonate is added in sufficient concentration to provide from about 10 to about 40 meq./l. of CO.sub.2 in the mixture when the dry animal body fluid is reconstituted to its water content prior to being dried. Other info: Inventors: Dorwart, Jr., William V. (Bala Cynwyd, PA, US) Brummund, Jr., Walter (Philadelphia, PA, US) Application Number: 794864 Filing Date: 1977-05-09 Publication_date: 1979-02-27 Assignee: Primary Class(es): 436/16 423/371, 424/716, 424/717, 436/11, 436/12, 436/13, 436/14, 436/15, 436/18, 436/19 Other Classes: US Patent Ref:
Other Refs: Other References: Ph. D Thesis of Teeter, T. E., et al., "Reduction of Carbon Dioxide on Mercury Cathodes," University of Oregon, Eugene, Oregon (Jun. 1954). | |