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Method for fixation of tris bipyridine ruthenium and electrochemiluminescence detection of malachite green

A technology of ruthenium terpyridine and malachite green, applied in chemiluminescence/bioluminescence, electrochemical variables of materials, and analysis by chemical reaction of materials, etc., can solve the problems of long test time, high cost, and expensive detection instruments, etc. , to achieve the effect of rapid testing, excellent adsorption performance, and simple preparation method

Active Publication Date: 2017-04-05
CHANGZHOU UNIV
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Problems solved by technology

[0004] The problem to be solved in the present invention is to provide a low-cost, simple-to-operate, and rapid test method for detecting malachite green, aiming at the problems that existing malachite green detection methods generally require expensive detection instruments, long test time and high cost. method

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  • Method for fixation of tris bipyridine ruthenium and electrochemiluminescence detection of malachite green
  • Method for fixation of tris bipyridine ruthenium and electrochemiluminescence detection of malachite green
  • Method for fixation of tris bipyridine ruthenium and electrochemiluminescence detection of malachite green

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Embodiment 1

[0025] (1) Preparation of poly-o-aminophenolsulfonic acid-terpyridine ruthenium-modified glassy carbon electrode

[0026] Take 25mL o-aminophenolsulfonic acid electropolymerization solution, within the electrochemical window range of -1.5 ~ 2.0V, electropolymerize by cyclic voltammetry for 20 cycles, rinse with deionized water and dry, place it in 15mL 1.0×10 -4 mol / L ruthenium terpyridine was adsorbed in an aqueous solution for 30 min, and then rinsed with deionized water and dried to serve as a working electrode for electrochemiluminescence testing.

[0027] (2) Drawing of standard curve

[0028] A three-electrode system was composed of a poly-o-aminophenol sulfonic acid-terpyridine ruthenium-modified glassy carbon electrode as the working electrode, a platinum electrode as the auxiliary electrode, and a saturated calomel electrode as the reference electrode, and 0.1mol / L PBS with pH=10 The buffer solution was a blank solution to detect the luminescence intensity, and the t...

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Abstract

Belonging to the field of electrochemiluminescence detection, the invention relates to a method for detection of malachite green. A poly(o-aminophenol-sulphonic acid)-tris bipyridine ruthenium modified glassy carbon electrode is adopted as the working electrode, a platinum electrode is taken as the auxiliary electrode, and a saturated calomel electrode is taken as the reference electrode to compose a three-electrode system to detect malachite green by electrochemiluminescence method. The method has a detection range of 5.0*10<-8>-1.0*10<-5>mol / L, and a minimum detection limit of 1.5*10<-8>mol / L. The method for detection of malachite green provided by the invention has the advantages of low cost, high sensitivity, simple operation and good selectivity.

Description

technical field [0001] The invention relates to an electrochemiluminescence method for detecting malachite green, in particular to a method for quantitatively detecting the electrochemiluminescence of malachite green in water samples using a poly-o-aminophenolsulfonic acid-terpyridine ruthenium-modified glassy carbon electrode as a working electrode Analytical method. Background technique [0002] Malachite green, also known as malachite green and alkaline green, is a dark green crystalline solid, which has the effect of killing fish parasites and molds, and is low in cost, so it is favored by aquaculture farmers. However, malachite green is a carcinogen, which can remain in aquatic products for a long time. It can cause carcinogenic, teratogenic and mutagenic side effects to the human body through the food chain. At the same time, the discharge of malachite green aquaculture wastewater will lead to pollution of the environment. In 2002, China included malachite green in t...

Claims

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Application Information

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IPC IPC(8): G01N21/76G01N27/48
CPCG01N21/76G01N27/48
Inventor 兰秋凤王文昌陈小卉陈智栋
Owner CHANGZHOU UNIV
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