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Compound H2S microelectrode and preparation method thereof

A micro-electrode and composite technology, applied in the field of environmental microorganisms and environmental monitoring, to achieve the effects of accurate reference, high stability, and simplified preparation methods

Inactive Publication Date: 2014-06-18
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the sludge group internal H 2 The determination of S concentration is impossible to achieve by traditional detection methods

Method used

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  • Compound H2S microelectrode and preparation method thereof
  • Compound H2S microelectrode and preparation method thereof

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Embodiment Construction

[0040] The present invention will be further described below in conjunction with specific examples, but the examples do not constitute a limitation to the present invention.

[0041] see figure 1 (a), figure 1 As shown in (b), the compound formula H is given 2 S microelectrode structure, including an outer tubular tapered glass sleeve 601 , working electrode 605 , guard electrode 606 and reference electrode 607 . A working electrode 605, a protective electrode 606, and a reference electrode 607 are sleeved side by side in the cavity of the outer tubular tapered glass sleeve 601, the upper part of the outer tubular tapered glass sleeve 601 is a cylindrical end face, and the bottom is a tapered tip; the tube is injected with Electrolyte buffer solution 602, tapered tip sucked with silicone rubber membrane 603, and epoxy resin 604 is used to seal the cylindrical end face of the outer tubular tapered glass sleeve 601. The wire ends of the working electrode 605, the guard electrod...

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Abstract

The invention discloses a compound H2S microelectrode and a preparation method thereof. The microelectrode mainly comprises a working electrode, a guard electrode, a reference electrode and an outer tubular tapered glass sleeve. A silicon rubber film is absorbed on the tip of the outer tubular tapered glass sleeve; a cavity is internally filled with an electrolyte buffer solution and is provided with the working electrode, the guard electrode and the reference electrode in parallel, and lead ends of the working electrode, the guard electrode and the reference electrode extend out of the cylindrical end face of the outer tubular tapered glass sleeve; the cylindrical end face of the outer tubular tapered glass sleeve is sealed by epoxy resin. The preparation method of the electrode comprises the steps of manufacturing the outer tubular tapered glass sleeve; manufacturing the working electrode, the guard electrode and the reference electrode; assembling an H2S microelectrode; and fixing and sealing the H2S microelectrode. The compound H2S microelectrode can be used for rapidly measuring the characteristic of spatial distribution of concentration of H2S in a sludge group and a natural water sedimentation layer.

Description

technical field [0001] The invention belongs to the technical field of environmental microorganisms and environmental monitoring, and mainly relates to a compound H 2 S microelectrode and method for its preparation. Background technique [0002] Sulfur generally exists in the form of sulfur-containing organic matter in raw sewage, and will be transformed into sulfide under certain conditions. Sulfide not only consumes dissolved oxygen in the water body and causes water hypoxia, but also has toxic effects on some microorganisms. It will also be converted to H under appropriate pH conditions 2 S enters the atmosphere, further causing pollution and endangering the health of the population. Therefore, wastewater desulfurization often converts sulfide into stable elemental sulfur or sulfate. [0003] Determination of H in biological sulfur removal process 2 S concentration is of great significance for understanding sulfur metabolism process and studying biological sulfur remo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/30
Inventor 王磊吕永涛鞠恺王旭东苗瑞孙婷
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
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