Graphene/SDS (Sodium Dodecyl Sulfate)-modified carbon paste electrode and preparation method thereof

A carbon paste electrode and graphene technology, applied in the field of electrochemical analysis, can solve the problems of poor electrode stability and reproducibility, and achieve good selectivity and sensitivity, good reproducibility, and low preparation cost
CN104483364AActive Publication Date: 2015-04-01SHANGHAI APPLIED TECHNOLOGIES COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SHANGHAI APPLIED TECHNOLOGIES COLLEGE
Publication Date
2015-04-01

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Abstract

The invention discloses a graphene / SDS (Sodium Dodecyl Sulfate)-modified carbon paste electrode and a preparation method thereof. The graphene / SDS-modified carbon paste electrode consists of an electrode lead, a polytetrafluoroethylene tube or a quartz glass tube with inner diameter of 3mm, and a carbon paste filled into the polytetrafluoroethylene tube or the quartz glass tube, wherein one end of the electrode lead wire is straightly inserted into the carbon paste, the other end of the electrode lead is leaded to the outside of the polytetrafluoroethylene tube or the quartz glass tube, and the carbon paste is formed by uniformly grinding and mixing graphite powder, solid paraffin oil and a graphene / SDS composite material; the mass ratio of graphene / SDS in the graphene / SDS composite material is 1:(0.3-0.4). The preparation method comprises the preparation of the graphene / SDS composite material, assembling of the graphene / SDS-modified carbon paste electrode and the like. The graphene / SDS-modified carbon paste electrode has favorable electrochemical activity, reproducibility and stability, is easy in activization and regeneration, and is applied to dopamine detection.
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Description

technical field

[0001] The invention relates to a graphene / SDS modified carbon paste electrode and a preparation method thereof, belonging to the field of electrochemical analysis. Background technique

[0002] Dopamine (hereinafter referred to as DA) is an important catecholamine neurotransmitter and an adrenaline-mimetic drug, which is widely distributed in mammals and plays a very important role in the central nervous system, kidney, cardiovascular system and endocrine system. In addition, abnormal DA content can lead to many diseases, such as Alzheimer's disease, Parkinson's disease, senile dementia, schizophrenia and HIV infection, etc. Therefore, it is important to establish a simple, fast and accurate DA detection method very important.

[0003] There are many traditional methods for detecting DA, such as capillary electrophoresis, fluorimetry, chromatographic analysis, spectrophotometry and chemiluminescence, etc., but these methods generally require high experiment...

Claims

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