Preparation method and application of nano platinum/graphene flexible electrode

A kind of graphene flexible and nano-platinum technology, which is applied in the field of preparation of nano-platinum/graphene flexible electrodes, can solve the problems of poor detection environment adaptability, complex preprocessing steps, poor detection sensitivity, etc., and achieve stable results, flexible structure and wide detection range wide effect

Inactive Publication Date: 2019-05-03
HANGZHOU DIANZI UNIV
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Problems solved by technology

These techniques are highly sensitive but require expensive instrumentation, complex preprocessing steps and specialized operators
Among the many electrochemical detection methods, most of them are traditional modification and detection methods based on solid electrodes. These electrochemical detection methods have one or more shortcomings, such as poor detection sensitivity, narrow linear range, and poor adaptability to the detection environment. Wait

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  • Preparation method and application of nano platinum/graphene flexible electrode
  • Preparation method and application of nano platinum/graphene flexible electrode
  • Preparation method and application of nano platinum/graphene flexible electrode

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Embodiment Construction

[0035] In order to illustrate the embodiments of the present invention more clearly, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

[0036] The preparation method of the nano-platinum / graphene flexible electrode of the embodiment of the present invention comprises the following steps:

[0037] 1) Put 5 mL of graphene oxide solution with a concentration of 2 mg / mL into a 50 mL centrifuge tube with a pipette gun, add 15 mL of deionized water and shake well; then add 5 mL of ascorbic acid solution with a concentration of 2 mg / mL, shake well, and sonicate for 2 hours. Afterwards, keep it sealed and protected from light for 24 hours;

[0038] 2) Pour the abo...

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Abstract

The invention, which belongs to the technical field of food safety detection, particularly relates to a preparation method and application of a nano platinum/graphene flexible electrode. The preparation method comprises the following steps: step one, separately preparing a graphene oxide solution and a platinum precursor solution; step two, preparing graphene oxide paper; step three, carrying outchemical reduction on the graphene oxide paper to obtain a redox graphene flexible electrode; and step four, connecting the redox graphene flexible electrode to an electrochemical workstation, addingthe platinum precursor solution into an electrolyte, and carrying out scanning based on cyclic voltammetry to obtain a nano-platinum/graphene flexible electrode. Compared with the traditional electrode detection results, the nano-platinum/graphene flexible electrode has higher detection sensitivity; no hydrogen is separated out in the detection process; the result is stable; and the detection range is wider. The electrode is more flexible in structure; and the miniaturization is realized easily. Rapid detection of the gallic acid on various occasions can be realized.

Description

technical field [0001] The invention belongs to the technical field of food safety detection, and in particular relates to a preparation method and application of a nano-platinum / graphene flexible electrode. Background technique [0002] Gallic acid (GA) is a major natural phenolic component, an important organic fine chemical widely used in the pharmaceutical and food industries. Gallic acid has powerful anti-free radical activity, and has various biological and pharmaceutical uses such as anti-cancer, anti-inflammation, anti-oxidation, anti-microbial, and anti-cardiovascular disease. [0003] At present, there are chemiluminescence, high performance liquid chromatography (HPLC), liquid chromatography-tandem mass spectrometry (LC-MS / MS), reverse flow injection (Reverse Flow Injection, RFI) and so on for the detection of gallic acid. These techniques are highly sensitive but require expensive instruments, complex preprocessing steps and specialized operators. Among the man...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/26G01N27/30G01N27/327
Inventor 郑岩王高峰徐枫樊凯李杜鹃王寅杨安琪雷雯静苏畅
Owner HANGZHOU DIANZI UNIV
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