Fluorescent CdSe nanometer quantum dot probe for pesticide dimethoate, and application thereof

A fluorescent nanometer and quantum dot technology, applied in nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, to achieve high fluorescence intensity, low detection limit, and simple and convenient detection process
CN102849688AInactive Publication Date: 2013-01-02GUANGXI TEACHERS EDUCATION UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
GUANGXI TEACHERS EDUCATION UNIV
Publication Date
2013-01-02
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a fluorescent CdSe nanometer quantum dot probe for pesticide dimethoate, and application of the probe. A preparation method of the fluorescent CdSe nanometer quantum dot probe for pesticide dimethoate comprises the steps of preparing selenium stock solution; preparing cadmium stock solution; and preparing the fluorescent CdSe nanometer quantum dot probe for pesticide dimethoate. The probe has detection limit up to 1.5*10<-7> mol / L for pesticide dimethoate. The preparation method has the advantages of simple operation method, rapid detection, and high sensitivity and selectivity for dimethoate in a mixed sample.
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Description

technical field

[0001] The invention belongs to the technical field of pesticide detection, and in particular relates to a fluorescent nanometer CdSe quantum dot probe of dimethoate pesticide and an application thereof. Background technique

[0002] Dimethoate is a kind of quick-acting broad-spectrum sulfur-one-thiophosphoramide insecticide and acaricide. It has good control effect on mites in Arachnida, Lepidoptera and Homoptera in Insecta. effect. So far, dimethoate pesticides are mainly used to control rice and cotton pests, such as spider mites, scale insects, banana weevils, flower thrips, leaf rollers, and Spodoptera litura. Dimethoate can cause poisoning through the esophagus, skin and respiratory tract. Therefore, the analysis and detection of dimethoate pesticides is particularly important. So far, the detection methods of dimethoate pesticide mainly include high performance liquid chromatography, gas chromatography and immunoassay. However, these methods have di...

Claims

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