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Construction method and application of a polymer sensor array modified by 8-hydroxyquinoline lithium boride

A sensor array and hydroxyquinoline boron technology, which is applied in the field of chemistry, can solve the problems that the gas-sensitive film is difficult to meet the qualitative identification of different drugs, the false alarm of the sensor, etc., so as to improve the specific identification and enrichment ability, improve the strength, and improve the detection sensitivity. Effect

Inactive Publication Date: 2020-04-17
QINGHAI UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

In practical applications, it is easy to be affected by the environment, and it is easy to cause false alarms on the sensor. The reason is that a single gas-sensitive film is difficult to meet the actual needs of qualitative identification of different drugs.

Method used

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  • Construction method and application of a polymer sensor array modified by 8-hydroxyquinoline lithium boride
  • Construction method and application of a polymer sensor array modified by 8-hydroxyquinoline lithium boride
  • Construction method and application of a polymer sensor array modified by 8-hydroxyquinoline lithium boride

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Embodiment Construction

[0036] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0037] 1. Construction of LiBMQ-g-SVBTC-PPV sensing element

[0038] a) Synthesis of SVBTC-PPV with different band gaps

[0039] Based on the previous work of the applicant, a group of SVBTC-PPV with different energy levels was synthesized by controlling the degree of conjugation of PPV. The specific synthesis process is as follows: 3.5 g of potassium tert-butoxide (tert-BuOK), 20 mL of dry dioxane and different masses of 4-vinylbenzylisothiourea hydrochloride (0, 0.65 g, 0.975g), the temperature was raised to 60°C under the protection of nitrogen. 1.0 g of compound 2 in 10 mL of dry dioxane solution was slowly added dropwise into the reaction flask, and the color of the reaction solution gradually deepened from colorless to orange. After the dropwise addition, the reaction mixture was reacted at 60° C. fo...

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Abstract

The invention discloses a construction method and application of an 8-hydroxyquinoline lithium bromide modified polymer sensor array. The method comprises the following steps: 1, constructing a LiBMQ-g-SVBTC-PPV sensing element; 2, constructing a drug photoelectric sensing array and evaluating performance; and 3, performing data analysis and processing. A photoelectric sensor array capable of qualitatively identifying the common drugs is prepared and constructed by adopting a photoelectric sensing detection method and combining a surface modification technology and a sensor array constructionand main component analysis technology, so that the sensitivity of an atmosphere drug photoelectric sensing material is further improved and differential amplification of the common drug signals is realized.

Description

technical field [0001] The invention belongs to the technical field of chemistry, and relates to a construction method and application of a polymer sensor array modified by 8-hydroxyquinoline lithium boride, in particular, to a drug detection-oriented lithium 8-hydroxyquinoline boride modification The construction method and application of the polymer sensor array. Background technique [0002] The gas-sensitive detection technology for drug vapor has the advantages of non-contact, simple sampling, and high reliability. The gas-sensing detection method based on electrical sensors is widely used in the detection of different gas molecules, and has the advantages of high stability, mature preparation process, simple structure and low cost. Using 4-vinylbenzylisothiouronium hydrochloride (SVBTC) as a substrate, our research group prepared a class of polyphenylenes with styrene double bonds and carboxyl groups in their side chains using a simple and novel synthetic method. Eth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/17C08G61/02
Inventor 刘秉鑫谢关顺孙志成林雨田吕祎凡
Owner QINGHAI UNIVERSITY
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