Production of color-sensitive gas sensor array

A technology of gas sensor and manufacturing method, which is applied in the direction of material analysis by observing the influence of chemical indicators, and analysis by causing chemical reaction of materials, etc., can solve problems such as poor repeatability and short service life, and achieve consistency improvement. , the effect of prolonging the service life and expanding the scope of application

Inactive Publication Date: 2007-11-21
JIANGSU UNIV
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Problems solved by technology

Related U.S. patent "Colorimetric artificialnose having an array of dyes and method for artificial olfaction (20030166298)", the color-sensitive gas sensor mentioned in this patent has shortcomings such as short service life and poor repeatability between different batches

Method used

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  • Production of color-sensitive gas sensor array
  • Production of color-sensitive gas sensor array
  • Production of color-sensitive gas sensor array

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Experimental program
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Embodiment Construction

[0019] The color-sensitive gas sensor array manufacturing method of the present invention will be described in more detail below in conjunction with the accompanying drawings:

[0020] (1) Selection of gas color-sensitive materials: Select those hydrophobic porphyrin compounds and acid-base indicators that have color changes to gases as sensor materials. After many tests, porphyrin compounds such as protoporphyrin, zinc porphyrin, iron porphyrin, tin porphyrin, copper porphyrin and hydrophobic acid-base indicators such as methyl red and methyl blue were finally selected.

[0021] (2) Selection of solvent: select p-chlorotoluene as the solvent of the porphyrin compound, and alcohol as the solvent of the hydrophobic acid-base indicator, and dissolve them in the solvent at a concentration of 1 mol / L to form respective solutions.

[0022] (3) Selection and production of sensor base materials: ①Choose food-grade white polytetrafluoroethylene as the base plate 1, first process the p...

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Abstract

A method for preparing color-sensitive gas transducer array includes using hydrophobic prophyrin class compound and acid-base indicator as gas color-sensitive material, dissolving said color-sensitive material in organic solvent, using white Teflon material as base material of said transducer and processing Teflon material to be square block, making labels in certain size on square block, coating a layer hydrophobic white stabilizer on each label, fixing certain amount of gas color-sensitive solution on stabilizer at label of base, fixing one type of said solution on each label and obtaining said transducer array after organic solvent is dried.

Description

technical field [0001] The invention relates to a method for manufacturing a sensor array, in particular to a method for manufacturing a color-sensitive gas sensor array. Background technique [0002] Artificial olfaction is a technology that simulates the human sense of smell for qualitative and quantitative analysis of volatile gas components. With the research and development of artificial olfactory technology, different types of gas sensors have emerged, such as conductive sensors, piezoelectric sensors, field effect sensors, etc. Monitoring, public security and customs, aerospace and other aspects have been widely applied research. However, most of the common gas sensors at present are based on physical adsorption to detect gas molecules. Due to the relatively weak intermolecular force of physical adsorption, mainly Van der Waals force, this makes the existing sensors have low sensitivity, narrow detection range, and easy to be affected. Defects such as the influence ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78
Inventor 邹小波赵杰文黄星奕蔡健荣陈全胜
Owner JIANGSU UNIV
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