Preparation method of array fluorescent nano-cluster sensor and application of array fluorescent nano-cluster sensor to metal ion recognition

A technology of fluorescent nano-clusters and metal ions, which is applied in the direction of fluorescence/phosphorescence, instruments, scientific instruments, etc., can solve the problems of inability to realize rapid identification of samples and waste of resources, and achieve the effects of rapid identification, convenient method and broad application prospects

Active Publication Date: 2016-05-04
ZHENGZHOU TOBACCO RES INST OF CNTC
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Problems solved by technology

Rapid identification of samples cannot be achieved, especially for samples that do not ne

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  • Preparation method of array fluorescent nano-cluster sensor and application of array fluorescent nano-cluster sensor to metal ion recognition
  • Preparation method of array fluorescent nano-cluster sensor and application of array fluorescent nano-cluster sensor to metal ion recognition
  • Preparation method of array fluorescent nano-cluster sensor and application of array fluorescent nano-cluster sensor to metal ion recognition

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Embodiment Construction

[0034] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0035] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0036] The nanoclusters used in the following examples have detailed preparation methods in the attached references. The specific correspondences are: BSA-AuNCs (Reference 1), MUA-GSH-AuNCs (Reference 2), GSH-AuNCs (Reference 3), MUA-AuNCs (Reference 4), His-AuNCs (H 2 O) (Reference 5) and His-AuNCs (PBS) (Reference 5) were synthesized by referring to the literature.

[0037] A method for synthesizing carbon nanoclusters (CQDs), comprising the following specific steps:

[0038] 1) Mix 0.4g of agar and 0.08g of ammonium sulfate;

[0039] 2) Add 20mL deionized water and stir well;

[0040] 3) Put the mixed solution into the muffle furnace reactor and react at 220°C for 12 hours;

[0041] 4) Take out the reacted solution and c...

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Abstract

The invention provides a preparation method of an array fluorescent nano-cluster sensor and an application of the array fluorescent nano-cluster sensor to metal ion recognition. The preparation method comprises steps as follows: 1), seven fluorescent nano-clusters required by the array fluorescent nano-cluster sensor are synthesized; 2), the array fluorescent nano-cluster sensor is prepared by means of the seven fluorescent nano-clusters. A method for applying the array fluorescent nano-cluster sensor to metal ion recognition comprises steps as follows: different samples containing metal ions are mixed with the array fluorescent nano-cluster sensor; fluorescence intensity signals of the seven nano-clusters, responding to the samples, in the array fluorescent nano-cluster sensor are read; the fluorescence response signals of the seven nano-clusters responding to the samples are taken as array signals to recognize the samples; finally, a practical water sample is recognized by means of a nano-cluster array. Experiments prove that the method is convenient and efficient, metal ions in the samples can be quickly responded, and the samples containing the metal ions are quickly recognized according to the recognition response signals of the nano-cluster array responding to the metal ions.

Description

technical field [0001] The invention relates to the preparation and application of fluorescent nano-clusters, in particular to a method for preparing an array fluorescent nano-cluster sensor and its application in metal ion identification, which is of great significance to the identification of samples containing metal ions. Background technique [0002] At present, for the content of metal ions in samples, only ICP, atomic absorption, atomic fluorescence and other methods can be used to qualitatively identify various metal ions. Rapid identification of samples cannot be achieved, especially for samples that do not need to be quantified, and quantification one by one is obviously a great waste of resources. [0003] Therefore, it is of great significance to develop efficient, cheap, convenient and fast metal ion identification methods. Contents of the invention [0004] The purpose of the present invention is to provide a preparation method based on the array fluorescent ...

Claims

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Application Information

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IPC IPC(8): G01N21/64
CPCG01N21/6452
Inventor 刘萍萍周会娜陈千思翟妞金立锋郑庆霞陈霞张慧王晨徐国云林福呈
Owner ZHENGZHOU TOBACCO RES INST OF CNTC
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