Title:
【発明の名称】イオンのアッセイ法とその装置
Document Type and Number:
Japanese Patent JP3088789
Kind Code:
B2
Abstract:
A test device and method of determining the presence or concentration of a predetermined ion, such as a cation of medical interest, like sodium, potassium, calcium, magnesium or lithium, in an aqueous test sample are disclosed. The test device includes a test pad comprising a hydrophilic indicator reagent composition capable of interacting with a predetermined ion, or electrolyte, to produce a detectable or measurable response. The hydrophilic indicator reagent composition comprises an ion specific ionophore, a reporter substance, and a stabilizer compound, such a gelatin. The hydrophilic indicator reagent composition, either as a film or layer, or after incorporation into a suitable carrier matrix, provides a test pad of sufficient sensitivity to the predetermined ion to achieve an accurate and trustworthy electrolyte assay of an aqueous test sample, such as the plasma or serum of a whole blood sample, by a dry phase test strip assay.
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Inventors:
Steven Sea Charlton
Application Number:
JP21801291A
Publication Date:
September 18, 2000
Filing Date:
August 05, 1991
Export Citation:
Assignee:
Bayer Corporation
International Classes:
G01N31/22; G01N33/52; G01N33/84; (IPC1-7): G01N31/22; G01N31/22
Domestic Patent References:
| JP62161053A | ||||
| JP59231452A | ||||
| JP60194360A | ||||
| JP629271A | ||||
| JP63204148A |
Attorney, Agent or Firm:
Hajime Tsukuni (2 outside)