Ischemia modified albumin detection kit and method

CN122108983APending Publication Date: 2026-05-29ZYBIO INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZYBIO INC
Filing Date
2024-11-27
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing ischemia-modified albumin detection kits have shortcomings in terms of stability, precision, and linear range. Furthermore, commonly used stabilizers such as DTT and erythritol pose safety risks and are costly, which hinders their widespread clinical application.

Method used

The reagent kit is designed as a liquid dual-reagent kit. Reagent 1 contains divalent cobalt ions and a surfactant, while reagent 2 contains dithiothreitol and a reducing agent. By using a reasonable pH value and component ratio, combined with nonionic surfactants and buffer solutions, the stability and precision of the reagents are improved. Tartaric acid is used as a reducing agent for DTT to enhance stability and precision.

Benefits of technology

The kit achieved a reactivity deviation of no more than 1% after 7 days of heat acceleration at 37℃, a clinical deviation of no more than 5% after 30 days of opening, and a linear range of 20–180 U/mL, meeting clinical testing needs and showing good clinical relevance with mainstream manufacturers.

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Abstract

The application belongs to the technical field of biological medicine, and specifically discloses an ischemia modified albumin detection kit and method. The kit comprises reagent 1 and reagent 2; the reagent 1 comprises a water-soluble salt containing divalent cobalt ions and a surfactant, and has a pH of 7.1-8.5; the reagent 2 comprises dithiothreitol and a reducing protective agent, and has a pH of 4.0-7.5; the reducing protective agent is selected from at least one of tartaric acid, 2-hydroxy succinic acid, tris(2-carboxyethyl) phosphine, thiourea, mannitol and sodium sulfite. The kit is used to detect ischemia modified albumin by an albumin-cobalt combination test method, has the advantages of strong stability, high precision, good clinical correlation with mainstream manufacturers, wide linear range and the like, and can well meet the needs of clinical examination.
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