Preparation method and applications of flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber

A carbon fiber membrane and high-selectivity technology, applied in the field of electrochemistry, can solve problems such as no public reports, and achieve significant economic and social benefits, high flexibility, and fast measurement results
CN110877902AActive Publication Date: 2020-03-13NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
Publication Date
2020-03-13

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Abstract

The invention relates to a preparation method and applications of a flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane of self-supporting carbon fiber, wherein the flexible and high-selectivity non-enzyme uric acid electrode carbon fiber membrane of self-supporting carbon fibers is prepared and is used as an electrochemical sensor modification electrode to directly and rapidly determine non-enzymatic uric acid. The method comprises the following steps: dissolving PAN in DMF to prepare an electrospinning precursor with a PAN mass concentration of 10-14%, applying a voltage between a needle and an aluminum foil collector, carrying out electrospinning, carrying out vacuum drying on the prepared polymer nanofiber membrane to volatilize DMF, putting the carbonfiber membrane into a quartz tube furnace, carrying out heat treatment, cooling to a room temperature, fixing the obtained carbon fiber membrane by using a platinum electrode clamp, exposing, immersing into an H2SO4 solution, and activating by using a cyclic voltammetry to obtain a flexible carbon fiber membrane. With the application of the flexible and high-selectivity non-enzymatic uric acid electrode carbon fiber membrane as a non-enzyme UA sensor electrode, the electrode has characteristics of rapid determination, sensitivity, accuracy, stability, environmental protection and the like, and is an innovation in non-enzyme UA sensor measurement.
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Description

technical field

[0001] The present invention relates to electrochemistry, especially a preparation method and application of a self-supporting carbon fiber flexible, highly selective non-enzymatic uric acid electrode carbon fiber membrane, which is suitable for using it as an electrochemical sensor and can be directly used for non-enzymatic uric acid in modified electrodes rapid determination. Background technique

[0002] Uric acid (UA) is an important biomarker in the human body and is the final product of purine metabolism. Insufficient levels of uric acid in serum and urine can lead to symptoms of multiple sclerosis, AIDS and diabetes, while high levels of uric acid can lead to gout, arthritis, obesity, severe hepatitis, neurological disorders, cardiovascular and renal diseases. Therefore, a new type of flexible sensor that is easy to use, low in cost, and can be directly used in on-site detection or monitoring points is more and more important. However, traditional ri...

Claims

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