A method for detecting furazolidone by electrochemiluminescence

A furazolidone and electrochemical technology, which is applied in the direction of chemiluminescence/bioluminescence, electrochemical variables of materials, and analysis by making materials undergo chemical reactions, can solve problems such as harsh experimental operating conditions, and achieve simple, rapid and reproducible operations. Good performance and wide detection range

Active Publication Date: 2022-02-11
CHANGZHOU UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a simple, fast and accurate detection method for furazolidone aimed at the shortcomings of existing furazolidone detection methods that require large analytical instruments and harsh experimental operating conditions.

Method used

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  • A method for detecting furazolidone by electrochemiluminescence
  • A method for detecting furazolidone by electrochemiluminescence
  • A method for detecting furazolidone by electrochemiluminescence

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Experimental program
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Embodiment

[0027] (1) NH-MnO 2 / NAu / FTO electrode preparation

[0028] Prepare 1.0×10 -3 mol / L of HAuCl 4 Aqueous solution, with FTO as working electrode, saturated calomel electrode as reference electrode, platinum electrode as auxiliary electrode, with a constant potential of -0.3V, electropolymerization for 300s, washing with deionized water, taking out and drying to obtain NAu / FTO electrode , and then the prepared amidated manganese dioxide was formulated into a 1 mg / mL DMF dispersion, and 10 μL was modified onto NAu / FTO to obtain NH-MnO 2 / NAu / FTO electrode, place the modified electrode in an oven at 60°C for 6 hours to obtain the best adhesion effect of the modified material.

[0029] (2) Drawing of standard curve

[0030] NH-MnO 2 The / NAu / FTO electrode is used as the working electrode, the platinum electrode is used as the auxiliary electrode, and the Ag / AgCl electrode is used as the reference electrode to form a three-electrode system. Measure the luminescence intensity fo...

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Abstract

The invention provides a method for detecting furazolidone by electrochemiluminescence method, which uses aminated manganese dioxide / nano gold / modified SnO doped with fluorine 2 Transparent film (FTO) (NH‑MnO 2 / NAu / FTO) conductive glass as the working electrode, the Ag / AgCl electrode as the reference electrode, and the platinum electrode as the auxiliary electrode to form a three-electrode system; using the electrostatic interaction between amino groups and negatively charged gold nanoparticles, the composite material It is fixed on FTO, and furazolidone is adsorbed, and furazolidone is detected by electrochemiluminescence. The detection range of this method is 1.0×10 ‑8 mol / L‑1.0×10 ‑ 5 mol / L, the lowest detection limit is 6.6×10 ‑9 mol / L. The sensor prepared by the invention has the advantages of low cost, high sensitivity, simple operation and good selectivity for detecting furazolidone.

Description

technical field [0001] The invention belongs to the field of furazolidone detection, and the invention relates to an electrochemiluminescent method for detecting furazolidone, in particular to a method using NH-MnO 2 / NAu / FTO is the working electrode, and it is an electrochemiluminescence analysis method for the quantitative detection of furazolidone in fish pond water. Background technique [0002] Furazolidone is a synthetic broad-spectrum antibacterial drug, which is effective against common Gram-negative bacteria and positive bacteria, and has been widely used to control intestinal infections in livestock and poultry. Because furazolidone and its metabolites can induce cancer and gene mutation in animals, some countries have banned their use as feed additives. At present, my country has ordered to ban the marketing of livestock products containing furazolidone and its metabolites. To completely eliminate the residue problem in livestock products, we must start from the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/76G01N27/30G01N27/48
CPCG01N21/76G01N27/30G01N27/48
Inventor 潘瑜婷单学凌陈智栋
Owner CHANGZHOU UNIV
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