Fluorescent reagent for laddered detection of trace trivalent aluminium ions and divalent lead ions and preparation of fluorescent reagent

A fluorescent reagent, aluminum ion technology, applied in the field of fluorescent chemical sensors, to achieve the effect of fast detection, high selectivity, and enhanced fluorescence intensity

Inactive Publication Date: 2016-09-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problem that the detection of aluminum ions and divalent lead ions by existing fluorescent reagents cannot be completely separated from organic reagents, and the problem that a fluorescent reagent cannot be used to detect aluminum ions and divalent lead ions in a stepwise manner based on the difference in response at different concentrations, this paper One of the objects of the invention is to provide a fluorescent reagent for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, which can effectively quantitatively detect aluminum ions or divalent lead ions in the solution within two concentration ranges, The detection of the two ions is sensitive and fast, and there is no mutual influence; the second purpose is to provide a method for preparing a fluorescent reagent for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions. The preparation method is simple and easy to operate

Method used

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  • Fluorescent reagent for laddered detection of trace trivalent aluminium ions and divalent lead ions and preparation of fluorescent reagent
  • Fluorescent reagent for laddered detection of trace trivalent aluminium ions and divalent lead ions and preparation of fluorescent reagent
  • Fluorescent reagent for laddered detection of trace trivalent aluminium ions and divalent lead ions and preparation of fluorescent reagent

Examples

Experimental program
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Embodiment 1

[0061] A method for preparing a fluorescent reagent for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, the specific steps of the method are as follows:

[0062] (1) Preparation of PPP

[0063] Dissolve 100mg of 3,4-dibromo-1,2,5-tris(methoxycarbonylphenyl)pyrrole in 10mL of ethylene glycol dimethyl ether, add 282mg of 4-methoxycarbonylphenylboronic acid, 18mg of tetrakis(tri Phenylphosphine) palladium and 225mg cesium carbonate reacted for 18 hours at 70° C. to obtain a white solid powder; through nuclear magnetic resonance spectrometer and mass spectrometer, it can be known that the white solid powder is PPP, and its proton nuclear magnetic spectrum, mass spectrum and infrared Data are as follows:

[0064] 1 H-NMR (400MHz, CDCl 3 )δ(ppm):8.05(m,2H),7.85(m,8H),7.51(m,5H),6.98(m,5H),3.89(m,15H); MS(MALDI-TOF):calcd. for C 44 h 35 NO 10 ,737.2; found, 737.2; FTIR: 2950cm -1 (carbon-hydrogen single bond) 1728cm -1 (carbonyl double ...

Embodiment 2

[0071] A method for preparing a fluorescent reagent for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, the specific steps of the method are as follows:

[0072] (1) Preparation of PPP

[0073] Dissolve 100 mg of 3,4-dibromo-1,2,5-tris(methoxycarbonylphenyl)pyrrole in 30 mL of ethylene glycol dimethyl ether, add 548 mg of 4-methoxycarbonylphenylboronic acid, 55 mg of tetrakis(tris) Phenylphosphine) palladium and 364mg cesium carbonate reacted for 30 hours at 70° C. to obtain a white solid powder; through nuclear magnetic resonance spectrometer and mass spectrometer, it can be seen that the white solid powder is PPP, and its proton nuclear magnetic spectrum, mass spectrum and infrared Data are as follows:

[0074] 1 H-NMR (400MHz, CDCl 3 )δ(ppm):8.05(m,2H),7.85(m,8H),7.51(m,5H),6.98(m,5H),3.89(m,15H).MS(MALDI-TOF):calcd. for C 44 h 35 NO 10 , 737.2; found, 737.2.FTIR: 2950cm -1 (carbon-hydrogen single bond) 1728cm -1 (carbonyl dou...

Embodiment 3

[0081] A method for preparing a fluorescent reagent for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, the specific steps of the method are as follows:

[0082] (1) Preparation of PPP

[0083] Dissolve 100 mg of 3,4-dibromo-1,2,5-tris(methoxycarbonylphenyl)pyrrole in 20 mL of ethylene glycol dimethyl ether, add 300 mg of 4-methoxycarbonylphenylboronic acid, 40 mg of tetrakis(tris) Phenylphosphine) palladium and 280mg cesium carbonate reacted for 24 hours at 70° C. to obtain a white solid powder; through nuclear magnetic resonance spectrometer and mass spectrometer, it can be seen that the white solid powder is PPP, and its proton nuclear magnetic spectrum, mass spectrum and infrared Data are as follows:

[0084] 1 H-NMR (400MHz, CDCl 3 )δ(ppm):8.05(m,2H),7.85(m,8H),7.51(m,5H),6.98(m,5H),3.89(m,15H).MS(MALDI-TOF):calcd. for C 44 h 35 NO 10 , 737.2; found, 737.2.FTIR: 2950cm -1 (carbon-hydrogen single bond) 1728cm -1 (carbonyl dou...

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Abstract

The invention discloses a fluorescent reagent and a preparation method for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, belonging to the field of fluorescent chemical sensors. The fluorescent reagent consists of PPPNa and a good solvent. 3,4-dibromo-1,2,5-three (methoxycarbonylphenyl) pyrrole is dissolved in good solvent, add 4-methoxycarbonylphenylboronic acid, catalyst and basic salt, react to obtain PPP; PPP Dissolve in a solvent, add alkali, and react to obtain PPPNa. The PPPNa is dissolved in a good solvent to obtain a fluorescent reagent; the fluorescent reagent can quantitatively detect aluminum ions or divalent lead ions in aqueous solution or mixed salt solution, the preparation method is simple, the operation is convenient, the response is fast, and it has high sensitivity It can completely break away from the dependence on high-precision instruments according to actual needs, and will largely meet people's detection requirements for aluminum ions and lead ions today.

Description

technical field [0001] The present invention relates to a fluorescent reagent and preparation method for stepwise detection of trace amounts of trivalent aluminum ions and divalent lead ions, in particular to a real-time "lighting" for solution fluorescence detection of trace amounts of aluminum ions and divalent lead ions in salt solution A fluorescent reagent and a preparation method thereof belong to the field of fluorescent chemical sensors. Background technique [0002] As the metal with the largest reserves on the earth, aluminum plays a huge role in industry, pharmaceuticals and other industries. Its ions—aluminum ions also exist in large quantities in the ecological environment and human life, and have a huge impact on humans. Excessive aluminum ions pose a huge threat to the biosphere and human health. Excessive intake of aluminum ions by the human body will increase the burden of various physiological functions and lead to a series of diseases. For example: excess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/06G01N21/64C07D207/337
CPCC09K11/06C07D207/337C09K2211/1007C09K2211/1029G01N21/6428
Inventor 董宇平李汪洋陈笛笛佟斌石建兵
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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