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Preparation method and application of tri-(2, 3-dibromopropyl) isocyanurate sensor

A technology of isocyanurate and dibromopropyl, applied in the preparation and application field of tris-(2,3-dibromopropyl) isocyanurate sensor, can solve the low selectivity of electrochemiluminescence , liquid chromatography tandem mass spectrometry equipment expensive and other issues

Inactive Publication Date: 2014-06-18
FUJIAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The selectivity of electrochemiluminescence is low, and the instrument of liquid chromatography tandem mass spectrometry is expensive. Therefore, it is necessary to find a highly selective, fast and cheap detection method

Method used

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  • Preparation method and application of tri-(2, 3-dibromopropyl) isocyanurate sensor
  • Preparation method and application of tri-(2, 3-dibromopropyl) isocyanurate sensor
  • Preparation method and application of tri-(2, 3-dibromopropyl) isocyanurate sensor

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Pretreatment of working electrode:

[0039] Polish the glassy carbon electrode on alumina slurry with a particle size of 0.3μm and 0.05μm until a smooth mirror surface appears, and then use dilute HNO 3 (Volume ratio is 1:1), ultrasonic cleaning with absolute ethanol and distilled water, repeat 3 times, 3min each time. Then carry out electrochemical activation treatment [that is, at 0.5mol / L H 2 SO 4 Perform a cyclic voltammetry scan at -0.3~1.5V] until a stable cyclic voltammetry response curve is obtained.

[0040] Preparation of the blot sensor:

[0041] Dissolve 0.0136g o-aminophenol in 0.1mol / L HClO 4 In the medium, adjust the pH with 0.4mol / L NaOH to make it weakly acidic, and dilute to 50mL. Add 20mL o-aminophenol solution and 10mL1.0×10 to the electrolytic cell -4 mol / L tris-(2,3-dibromopropyl) isocyanurate solution. The treated glassy carbon electrode is used as the working electrode, the platinum wire electrode is the auxiliary electrode, the saturated Ag / AgCl elec...

Embodiment 2

[0045] Pretreatment of working electrode:

[0046] Polish the gold electrode on the suede containing the alumina slurry with a particle size of 0.03μm for 5min, and then place it on the V 30%H2O2 :V Concentrated H2SO4 Soak in a solution of 1:3 for 10 minutes, and wash with twice distilled water and absolute ethanol for 5 minutes each ultrasonically to remove the alumina and other impurities adsorbed on the electrode surface, and then at 1.0mol / L H 2 SO 4 Carry out cyclic voltammetry scanning in the potential range of -0.20~+1.40V in the solution until a stable cyclic voltammetry response is obtained.

[0047] Preparation of the blot sensor:

[0048] Dissolve 0.0500g 2-mercaptobenzimidazole in 30mL ethanol, and the solution is mixed with 8mL1.0×10 -3 Mix the mol / L tris-(2,3-dibromopropyl) isocyanurate solution and deoxygenate with nitrogen for 5 min. The treated gold electrode is used as the working electrode, the platinum wire electrode is the auxiliary electrode, the saturated Ag...

Embodiment 3

[0052] Pretreatment of working electrode:

[0053] Polish the glassy carbon electrode on alumina slurry with a particle size of 0.3μm and 0.05μm until a smooth mirror surface appears, and then use dilute HNO 3 (Volume ratio is 1:1), ultrasonic cleaning with absolute ethanol and distilled water, repeat 3 times, 3min each time. Then carry out electrochemical activation treatment [that is, at 0.5mol / L H 2 SO 4 Perform a cyclic voltammetry scan at -0.3~1.5V] until a stable cyclic voltammetry response curve is obtained.

[0054] Preparation of the blot sensor:

[0055] 30mL of a mixture containing 0.0117g of tetrabutylammonium perchlorate and 0.0324g of o-aminothiophenol was passed through 99% nitrogen to deoxygenate for 5 minutes, and the pretreated glassy carbon electrode was self-assembled in this solution for 4 hours. Then, add 15mL0.5×10 to this solution - 3 mol / L tris-(2,3-dibromopropyl) isocyanurate solution to prepare polymerization solution. The treated glassy carbon electrode ...

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Abstract

The invention relates to a preparation method of a sensor capable of identifying tri-(2,3-dibromopropyl) isocyanurate. Tri-(2,3-dibromopropyl) isocyanurate is quickly determined by using the sensor. The preparation method comprises the following steps: firstly, polishing, cleaning and electrochemically activating a working electrode to obtain a pre-treated working electrode; adding a functional body solution and an imprinted molecule tri-(2, 3-dibromopropyl) isocyanurate solution into an electrolytic tank for electrochemical polymerization, and eluting to obtain an imprinted sensor with a functional body polymer membrane on the surface; and by taking the imprinted sensor as the working electrode and potassium ferricyanide as a testing base solution, adding the tri-(2, 3-dibromopropyl) isocyanurate solution, recording the peak current change condition of potassium ferricyanide to quickly test the content of tri-(2,3-dibromopropyl) isocyanurate. The imprinted sensor prepared by the invention is simple in method, and indirectly and quickly tests TBC by taking potassium ferricyanide (K2[Fe(CN)6]) as a probe molecule.

Description

Technical field [0001] The invention relates to the preparation field of a sensor capable of identifying tris-(2,3-dibromopropyl) isocyanurate, in particular to a sensor capable of identifying tris-(2,3-dibromopropyl) isocyanurate The method for preparing imprinted polymer sensor based on acid ester is the application of using the imprinted polymer sensor prepared by the invention to quickly determine tri-(2,3-dibromopropyl) isocyanurate. Background technique [0002] Tris-(2,3-dibromopropyl) isocyanurate (Tris(2,3-dibromopropyl)isocyanurate, TBC for short) is a new type of brominated flame retardant with good flame retardant effect and volatility Low, good compatibility, durability and water resistance, etc., widely used in plastics, rubber and synthetic fibers. Recent studies have shown that TBC has potential endocrine disrupting effects. The environmental hazards of such heterocyclic brominated flame retardants need further attention. Currently, the determination of TBC mai...

Claims

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Application Information

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IPC IPC(8): C25D9/02G01N27/26
Inventor 项生昌马秀玲刘家祥王丽华张章静
Owner FUJIAN NORMAL UNIV
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