Sensor array based on monolayer fluorescent sensing film and its pattern recognition for toxic gases

A sensor array and fluorescent sensing technology, applied in the field of chemical analysis and detection, can solve the problems of high sensor selectivity requirements, limited sensor application range, complex operation, etc., and achieve high-sensitivity differential detection, low cost, and good stability.
CN109283167BActive Publication Date: 2021-05-04SHAANXI NORMAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHAANXI NORMAL UNIV
Publication Date
2021-05-04

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Abstract

The invention discloses a sensor array based on a monomolecular layer fluorescent sensing film and pattern recognition for toxic gases. The sensor array is composed of six kinds of microarrayed monomolecular layer fluorescent sensing films, and each sensing film The ionic liquid or PEG 200 solution of different amphiphilic fluoroboridipyrrole derivatives adsorbed at the hydrophilic microdomains of the gold substrate with hydrophilic and hydrophobic microdomains. self-assembly at the interface. The invention separately collects the fluorescent response signals of each sensing film in the sensor array to the toxic gas, and processes the obtained multi-dimensional fluorescent signals, so as to realize the pattern recognition of the toxic gases such as volatile organic compounds, nerve gas and explosives. The cost of the sensor array of the invention is low, the microarrayed monomolecular layer fluorescent sensing film has good stability, long service life, high detection sensitivity, and the detection method is simple, easy to operate and widely applicable.
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Description

technical field

[0001] The invention belongs to the technical field of chemical analysis and detection, and in particular relates to a sensor array based on a monomolecular layer fluorescent sensing film and a method for detecting and identifying various toxic gases by using the array. Background technique

[0002] In recent years, terrorism and environmental pollution have seriously threatened people's lives and production safety. Nerve gas, a type of organophosphorus compound, was first synthesized in 1854 and has developed into a widely used chemical warfare weapon over the past eight decades. Skin absorption in a short period of time can paralyze muscles, and in severe cases can cause death by suffocation. In addition, with the general improvement of human production and living standards, environmental pollution has increasingly become a factor that endangers human health. Volatile organic compounds are common chemical substances widely present in the air, which mainly ...

Claims

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