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A kind of triazine-based fluorescent probe and its preparation method and application

A fluorescent probe and triazine-based technology, applied in the field of analytical chemistry, can solve the problems of high operating technology level, difficult to control particle size distribution, expensive instruments, etc., and achieve strong anti-interference ability of other metal ions, short response time, The effect of simple preparation method

Inactive Publication Date: 2020-03-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Graphene atomic absorption spectrometry and inductively coupled plasma atomic emission spectrometry are accurate and reliable for detecting copper ions, but the instruments are expensive and users need a high level of operating skills
In recent years, various probes for detecting copper ions have also emerged. For example, the water-soluble silicon quantum dot probe detection method has attracted much attention as a new nanomaterial due to its excellent biophilicity and optical properties. Its preparation can be divided into physical and chemical methods; the physical method can conveniently control the particle size of silicon quantum dots, but it requires expensive instruments, and more importantly, the physical method cannot fundamentally solve the problem of poor water solubility of silicon quantum dots; Compared with the physical method, the chemical method has been developed faster; at present, the chemical etching method is a more commonly used chemical method for the synthesis of silicon quantum dots. Size distribution, and requires the use of highly toxic chemical reagent HF [Analytical Chemistry, 2016, 44 (3): 367-376]

Method used

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  • A kind of triazine-based fluorescent probe and its preparation method and application
  • A kind of triazine-based fluorescent probe and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 A preparation method of a triazine-based fluorescent probe

[0033] Add 0.031 mol of L-phenylalanine and 0.040 mol of sodium carbonate to 40 mL of water, stir in ice bath for 10 min, then add cyanuric chloride solution dropwise in 5 min, stir at 100 °C for 8 hours, cool to room temperature, Suction filtration, washing three times with 2°C water, and drying at 70°C, the fluorescent probe was prepared with a yield of 93%;

[0034] Described cyanuric chloride solution is the mixed solution that 0.01 mol cyanuric chloride is dissolved in 20 mL of 1,4-dioxane.

Embodiment 2

[0035] Example 2 A preparation method of a triazine-based fluorescent probe

[0036]Add 0.033 mol of L-phenylalanine and 0.045 mol of sodium carbonate to 50 mL of water, stir in ice bath for 10 min, then add cyanuric chloride solution dropwise in 10 min, stir at 100 °C for 10 hours, cool to room temperature, Suction filtration, washing three times with 5°C water, and drying at 70°C, the fluorescent probe was prepared with a yield of 95%;

[0037] Described cyanuric chloride solution is the mixed solution that 0.01 mol cyanuric chloride is dissolved in 30 mL of 1,4-dioxane.

Embodiment 3

[0038] Example 3 A preparation method of a triazine-based fluorescent probe

[0039] Add 0.032 mol of L-phenylalanine and 0.042 mol of sodium carbonate to 45 mL of water, stir in an ice bath for 10 min, then add cyanuric chloride solution dropwise in 7 min, stir at 100 °C for 9 hours, cool to room temperature, pump filtered, washed three times with 3°C water, and dried at 70°C to obtain a fluorescent probe with a yield of 93-95%; the cyanuric chloride solution was 0.01 mol cyanuric chloride dissolved in 25 mL of 1,4- The mixed solution obtained by dioxane.

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Abstract

The invention provides a triazinyl fluorescent probe and a preparation method and application thereof and belongs to the technical field of analytical chemistry. The triazinyl fluorescent probe is prepared by a one-step reaction between cyanuric tricholoride and L-phenylalanine. The preparation method is easy to operate, low in raw material cost, easy for control of the reaction process, simple inproduct purification, and high in product yield and purity, can be widely applied to detection, particularly visual qualitative detection, of Cu(II) ion content in an organic solvent, and has a wideapplication prospect in the analysis and detection field.

Description

technical field [0001] The invention discloses a triazine-based fluorescent probe and a preparation method thereof, belonging to the technical field of analytical chemistry. Background technique [0002] Copper is one of the trace elements necessary for living organisms, and its concentration directly affects people's health. The human body only needs a small amount of copper to maintain normal life activities, and excessive copper is harmful to health. Hereditary diseases or due to the pollution of metal copper in the environment, one of its sources is eating food containing copper or inhaling high copper gas. In addition, the well-known air pollution and water pollution will eventually return to the soil and cause soil pollution. Pollution will affect the yield and quality of crops. Copper ions will eventually enter the human body through the step-by-step amplification process of the food chain, causing harm to human health. In view of the great harm of copper ions to hu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D251/70C09K11/06G01N21/64G01N21/78
CPCC07D251/70C09K11/06C09K2211/1059G01N21/6428G01N21/78
Inventor 骆玉成匡轩刘昭轩
Owner UNIV OF JINAN
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