Method for binding and fixing ionic type iridium coordination compound based on covalent bond

An iridium complex, ionic technology, applied in the field of solid-phase electrochemiluminescence electrodes, can solve the problems of easy contamination, poor reproducibility, short service life, etc., and achieve stable existence, good reproducibility, and good response. Effect
CN103558210AInactive Publication Date: 2014-02-05JIANGNAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
JIANGNAN UNIV
Publication Date
2014-02-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a method for binding and fixing an ionic type iridium coordination compound based on a covalent bond, belonging to the field of electrochemiluminescence detection. The method comprises the following steps: firstly, preparing an ionic type iridium coordination compound hexafluorophosphoric acid di(6-methyl-2,4-(4'-methoxy)-diphenyl quinoline (4,4'-dicarboxyl-2,2'-dipyridyl) coordination iridium ((dpq-OCH3)2Ir(dcbpy)+PF6-) with carboxyl by adopting an organic synthesis method, respectively adding 1-ethyl-(3-dimethyl aminopropyl) carbonyl diimine (EDC) and N-hydroxyl succinimide (NHS) to activate the carboxyl, then, adding mercaptoethylamine to stir and react with the carboxyl; and then, preparing nanogold on the surface of a glassy carbon electrode by adopting an electrodeposition method, inserting a prepared electrode into the solution system, and forming an Au-S covalent bond through chemical reaction of the two, and loading the ionic type iridium coordination compound on the electrode. An electrochemiluminescence solid-phase electrode prepared by the method has good response for coreactant dibutyaminoethanol (DBAE).
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Description

technical field

[0001] The invention immobilizes the ionic iridium complex on the electrode to prepare the solid-phase electrochemiluminescence electrode based on the force of the covalent bond, and belongs to the field of electrochemiluminescence detection. This type of sensor has a good response to inorganic ammonium salts and organic amines, and is widely used in the detection of ammonia or amines in explosives and drugs. Background technique

[0002] Electrochemiluminescence (Electrochemiluminescence or ECL) is the reaction of reactants on the electrode surface through high-energy electron transfer reactions to generate excited-state substances to emit light. Electrochemiluminescence is the product of the combination of chemiluminescence and electrochemistry. Therefore, electrochemiluminescence develops the advantages of electrochemistry and uses luminescence to make up for the shortcomings of electrochemistry. It has the advantages of simple device, good reproducibility...

Claims

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