Reference material for establishing anion concentrations in analytical chemistry tests

Claim 2

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.

Claim 3

The composition of claim 1 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO 2 concentration of from about 10 to about 40 meq./l.

Claim 4

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 μg./100 ml, 3 millimolar and 3 μg/100 ml.

Claim 5

The composition of claim 3 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO 2 concentration of from about 10 to about 40 meq./l.

Claim 6

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 μg/100 ml, 2 millimolar and 2 μg./100 ml.

Claim 7

The composition of claim 5 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO 2 concentration of from about 10 to about 40 meq./l.

Claim 8

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.

Claim 9

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.

Claim 10

The composition of claim 7 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO 2 concentration of from about 10 to about 40 meq./l.

Claim 11

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.

Claim 12

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.

Claim 13

The composition of claim 9 wherein the quaternary ammonium carbonate or bicarbonate is in concentration sufficient to provide a CO 2 concentration of from about 10 to about 40 meq./l.

Claim 14

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.

Claim 15

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.

Claim 16

A dry composition comprising at least one dried animal body fluid and at least one water-soluble quaternary ammonium carbonate or bicarbonate.

Claim 17

A dry composition comprising at least one dried animal body fluid and at least one water-soluble quaternary ammonium carbonate or bicarbonate.

Claim 18

The composition of claim 12 wherein the amount of salt is known.

Claim 19

The composition of claim 12 wherein the body fluid is serum.

Claim 20

The composition of claim 12 wherein the composition is in vitro.

Claim 21

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.

Claim 22

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.

Claim 29

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.

Claim 30

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 2 in the mixture when the dry animal body fluid is reconstituted to its water content prior to being dried.