Electrochemiluminescence method for detecting catechol

A catechol and electrochemical technology, applied in the field of electrochemiluminescence, can solve the problems of being unsuitable for rapid detection of catechol in tea, time-consuming and labor-intensive detection, etc., and achieve the effect of experimental reagents being environmentally friendly, easy to operate, and high luminous intensity
CN110308141AActive Publication Date: 2019-10-08CHANGZHOU UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2019-10-08

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Abstract

The invention provides an electrochemiluminescence method for detecting catechol, and belongs to the field of catechol detection. The operation process includes the following steps of: (1) preparing acopper-based metal organic framework (MOFs) HKUST-1 composite material doped with carbon dots (CDs); (2) preparing a CDs@HKUST-1 / GC chemically modified electrode; (3) forming a traditional three-electrode system by taking the CDs@HKUST-1 / GC modified electrode as a working electrode, taking an Ag / AgCl electrode as a reference electrode, and taking a platinum electrode as an auxiliary electrode, and detecting catechol by using the electrochemiluminescence method. The modified electrode CDs@HKUST-1 / GC has a simple preparation method, has high sensitivity to the detection of catechol, and realizes a wide linear range. According to the scheme of the invention, the detection range is 5.0*10-9mol / L to 2.5*10-5mol / L, and the minimum detection limit is 3.8*10-9mol / L.
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Description

technical field

[0001] The invention relates to a glassy carbon electrode modified by a copper-based metal-organic framework MOFs (HKUST-1) composite material (CDs@HKUST-1) doped with carbon dots (CDs), which is used to detect the electrochemiluminescence of catechol in tea The method belongs to the field of electrochemiluminescence. Background technique

[0002] Metal-organic frameworks (MOFs) are prepared by assembling organic ligands and metal ions in appropriate solvents, and recently, interest in developing MOFs-based materials for electrochemical applications has grown rapidly. Metal-organic frameworks (MOFs) are promising electrochemiluminescence (ECL) active materials because of their high mass transfer capacity and electrocatalytic efficiency. Using metal complexes with good luminescent properties as ligands to replace organic molecules is a prospective approach to endow MOFs with excellent ECL activity. Carbon dots (CDs) are a carbon-based zero-dimensional materi...

Claims

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