Patent ID: 11867703
Assignee: CHUNDO PHARM CO., LTD
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A method of producing a test strip for detecting a calcium concentration in a sample obtained from a biological subject, the method comprising:
impregnating paper with a primary reagent, followed by drying (a); and
impregnating the paper dried in step (a) with a secondary reagent, followed by drying (b),
wherein the primary reagent is prepared by adding o-cresolphthalein complexone (OCPC), 8-hydroxyquinoline, sodium lauryl sulphate (SDS), and polyvinylpyrrolidone (PVP) to distilled water, followed by mixing and further adding an organic acid thereto, and
the secondary reagent is prepared by adding N-cyclohexyl-3-aminopropanesulfonic acid and N-methyl-D-glucamine to distilled water, followed by mixing and further adding Triton X-100 and triethylamine borate thereto.