CN101581693B - Optical fiber spectroelectrochemistry multifunctional sensing composite probe device - Google Patents
Optical fiber spectroelectrochemistry multifunctional sensing composite probe device Download PDFInfo
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- CN101581693B CN101581693B CN2009101119498A CN200910111949A CN101581693B CN 101581693 B CN101581693 B CN 101581693B CN 2009101119498 A CN2009101119498 A CN 2009101119498A CN 200910111949 A CN200910111949 A CN 200910111949A CN 101581693 B CN101581693 B CN 101581693B
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Abstract
The invention provides an optical fiber spectroelectrochemistry multifunctional sensing composite probe device, comprising a light-tight mainbody. The composite probe device is characterized in that the middle part of the light-tight mainbody is provided with a cavity used for forming a detection cell; two sides of the cavity are provided with a sample inlet pipe and a sample outlet pipe; a top plate of the cavity is integrated with a working electrode, a reference electrode and an auxiliary electrode; the bottom side of the cavity is provided with a glass sheet; and an optical fiber positioning hole is arranged below the glass sheet and is right facing to the glass sheet. The optical fiber electrochemistry multifunctional sensing composite probe device has simple structure and convenient usage, integrates the three electrodes, the small detection chamber and the optical fiber and is beneficial for the combination use of optical fiber spectrum technology and electro-chemical technology.
Description
Technical field
The present invention relates to a kind of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device, be applicable to electrochemical field.
Background technology
Fiber spectrum/electrochemical sensing composite probe device is a kind of multi-functional probe of fiber spectrum sensing technology and the coupling of electrochemical sensing technology.Shortcomings such as the fiber spectrum technology is widely used in sensory field, but also has some defectives simultaneously owing to have visual and the simple portable advantage of equipment at present, and for example the sensing pattern is limited, and sensitivity is not high, and controllability is bad.The sensing probe that is generally used for the fiber spectrum analysis is ultraviolet-visible absorption spectroscopy probe or fluorescent probe, and these probe analyzing and testing sensitivity are not high, the signal poor controllability, and be mostly that simple function sensing, integrated level are poor.In order to overcome the existing defective of fiber spectrometer; We propose to develop a kind of fiber spectrum/electrochemical sensing combined probe in the present invention; This combined probe is with multiple fiber spectrum analysis; Comprise that uv-vis spectra, fluorescence spectrum, chemiluminescence, electrogenerated chemiluminescence carry out organic integration with Electrochemical Detection, form a kind of multifunctional optical fiber spectrum/galvanochemistry composite sensing probe, not only can realize detected sample is carried out the multichannel photomultiplier mode sense to obtain qualitative results more accurately; And, make detection sensitivity and signal controllability better owing to adopted chemiluminescence, electrogenerated chemiluminescence and galvanochemistry isotype.
Summary of the invention
The present invention relates to a kind of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device, be applicable to electrochemical field.
Technical scheme of the present invention is achieved in that a kind of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device; Comprise light tight main body, it is characterized in that: said light tight main body middle part is provided with the hole that forms detection cell, and the both sides, hole are provided with sample introduction and nesting tube; Integrated working electrode, contrast electrode and auxiliary electrode on the top board of hole; The bottom side, hole is provided with glass sheet, and the glass sheet below is provided with the fiber orientation hole, and is right against glass sheet.
Comprised the light tight plate main body of working electrode, contrast electrode and auxiliary electrode one integrated, described working electrode is positioned at the body surfaces center, and contrast electrode and auxiliary electrode are surrounded on described working electrode both sides; Light tight plate lower body part is provided with second block of light tight plate; Light tight plate is carved with the hole of a column; A quartz glass plate is fixed in the below in this hole, and above this quartz glass plate, forming airtight sensing chamber, and sample introduction pipe and nesting tube are embedded in described sensing chamber; Bottom, sample detection chamber is provided with the 3rd block of light tight plate, and light tight plate is carved with the hole of a column, is embedded with joints of optical fibre in this hole, and optical signalling arrives detecting device through Optical Fiber Transmission; Described three blocks of light tight plates connect fixing with screw, contain the black O-ring seal between dividing plate.
Described working electrode, contrast electrode and electrode package is embedded in same light tight plate surface, and fix with epoxy resin, wherein said working electrode are fixed on light tight plate main center, and contrast electrode and auxiliary electrode are surrounded on the working electrode both sides respectively.
Described sensing membrane is covered in three electrode surfaces and forms sensing probe; Sensing chamber can be used as gaseous sample sensing chamber and fluid sample sensing chamber simultaneously; Quartz glass plate is used epoxy sealing; And over against working electrode, optical signalling has comprised ultraviolet-visible absorption signal, glimmering (phosphorus) light signal, chemiluminescence and electrogenerated chemiluminescence signal.
Optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device of the present invention comprises integrated three-electrode surface plate.When being applied to gas sensing, can cover the conduction sensing membrane on the described three-electrode surface plate, for example ionic liquid then is the gas detection chamber below the sensing membrane; When being applied to the liquid sensing, sensing chamber can fill with solution.Described sensing chamber can be used as optical dark room simultaneously, avoids the influence of ambient light, and described sensing chamber below is an optical fiber interface, can optical signalling (phosphorescence, fluorescence and ultraviolet-visible) be imported optical fiber, is transmitted to fluorescence detector again.
The present invention one is processed by light tight igelite, and simple structure is easy to make; The 2nd, integrated three electrode panel, sensing chamber's panel and optical fiber interface panel are detachable, so help user's cleaning and to the replacing of sensing membrane.The present invention is fixed on same plane with three electrodes with loop configuration; Not only guarantee the stable of three electrode positions; And can clean synchronously three electrodes, only need small amount of sample (less than 2 μ L) can cover three electrodes during as gas sensing, significantly reduce the use amount of sensing material; The 3rd, sensing probe connects an independently small-sized air chamber (solution) sensing chamber (volume is less than 0.5mL), so not only can onlinely detect, and can also carry out acquisition testing to sample.
The present invention is simple structure not only, and is easy to use, simultaneously that three electrodes, small-sized sensing chamber and optical fiber is integrated, helps the coupling of fiber spectrum technology and electrochemical techniques.
Description of drawings
Fig. 1 is the vertical view of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device.
Fig. 2 is the side view of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device.
Specify:
A organic plates 1; B glass carbon working electrode; C Ag contrast electrode; D Pt auxiliary electrode; E organic plates 2; The F quartz glass plate; G sample introduction pipe; The H nesting tube; The I air chamber; J organic plates 3; The K optical fiber interface; The L O-ring seal; The M fixed screw
Embodiment
See figures.1.and.2, a kind of optical fiber spectroelectrochemismultifunctional multifunctional sensing composite probe device comprises light tight main body; Light tight main body middle part is provided with the hole I that forms detection cell; I both sides, hole are provided with sample introduction G and nesting tube H, integrated working electrode B, contrast electrode C and auxiliary electrode D on the I top board of hole, and I bottom side, hole is provided with glass sheet; Glass sheet F below is provided with fiber orientation hole K, and is right against glass sheet F.
Comprised the light tight plate main body A of working electrode B, contrast electrode C and auxiliary electrode D one integrated, described working electrode position B is in the body surfaces center, and contrast electrode C and auxiliary electrode D are surrounded on described working electrode B both sides; Light tight plate main body A bottom is provided with second light tight plate E; Light tight plate E is carved with the hole of a column; A quartz glass plate F is fixed in the below in this hole, and above this quartz glass plate F, forming airtight sensing chamber, and sample introduction pipe G and nesting tube H are embedded in described sensing chamber; Bottom, sample detection chamber is provided with the 3rd light tight plate J, and light tight plate cutter J has the hole K of a column, is embedded with joints of optical fibre in the K of this hole, and optical signalling arrives detecting device through Optical Fiber Transmission; Described three blocks of light tight plates connect fixing with screw M, contain black O-ring seal L between dividing plate.
Described working electrode B, contrast electrode C and electrode package is embedded in same light tight plate surface; And fix with epoxy resin; Wherein said working electrode B is fixed on light tight plate main body A center, and contrast electrode C and auxiliary electrode D are surrounded on the working electrode both sides respectively.
Described sensing membrane is covered in three electrode surfaces and forms sensing probe; Sensing chamber can be used as gaseous sample sensing chamber and fluid sample sensing chamber simultaneously; Quartz glass plate F uses epoxy sealing; And over against working electrode B, optical signalling has comprised ultraviolet-visible absorption signal, glimmering (phosphorus) light signal, chemiluminescence and electrogenerated chemiluminescence signal.
Embodiment
Get the light tight organic plates A of a 2cm * 2cm * 0.5cm (length * wide * height); Dig a circular hole at its positive middle part, and dig two semicircular grooves respectively in both sides, B is embedded in (electrode surface is a little more than organic plates) in the circular hole with glass carbon working electrode; Ag silk contrast electrode C one end is embedded in the left semicircle groove; The other end is drawn from organic plates at the back, and Pt silk auxiliary electrode one end D is embedded in the right semi-circle groove, and the other end is drawn from organic plates at the back; Three electrodes are all fixed with epoxy resin, and the polishing on fine emery powder paper of oven dry back is exposed in the air by shape shown in figure (1) until three electrodes; Bore a diameter 1cm circular hole second organic plates E middle, the bottom is with the sticking lastblock quartz glass plate F of epoxy resin, and the middle part is passed and fixedly sample introduction pipe G and nesting tube H, the so just I of sensing chamber of a sealing of formation on second block of plate; Cut a hole the circular hole that a diameter is slightly larger than optical fiber interface the 3rd organic plates J middle, imbed optical fiber interface K and fix with epoxy resin, optical fiber is connected on the organic plates through interface; Be fixed together at last with three organic plates stacks, and through four pieces of screw M, all place a ring-type black O-ring seal L between every block of plate.
Claims (6)
1. fiber spectrum/galvanochemistry multifunctional sensing composite probe device; Comprise light tight main body, it is characterized in that: said light tight main body middle part is provided with the hole that forms detection cell, and the both sides, hole are provided with sample introduction and nesting tube; Integrated working electrode, contrast electrode and auxiliary electrode on the top board of hole; The bottom side, hole is provided with glass sheet, and the glass sheet below is provided with the fiber orientation hole, and is right against glass sheet; Also comprised the light tight plate main body of working electrode, contrast electrode and auxiliary electrode one integrated, described working electrode is positioned at the body surfaces center, and contrast electrode and auxiliary electrode are surrounded on described working electrode both sides; Light tight plate lower body part is provided with second block of light tight plate; Light tight plate is carved with the hole of a column; A quartz glass plate is fixed in the below in this hole, and above this quartz glass plate, forming airtight sensing chamber, and sample introduction pipe and nesting tube are embedded in described sensing chamber; Bottom, sample detection chamber is provided with the 3rd block of light tight plate, and light tight plate is carved with the hole of a column, is embedded with joints of optical fibre in this hole, and optical signalling arrives detecting device through Optical Fiber Transmission; Described three blocks of light tight plates connect fixing with screw, contain the black O-ring seal between dividing plate.
2. fiber spectrum according to claim 1/galvanochemistry multifunctional sensing composite probe device is characterized in that: described working electrode, contrast electrode and electrode package is embedded in same light tight plate surface, and fix with epoxy resin.
3. fiber spectrum according to claim 1/galvanochemistry multifunctional sensing composite probe device is characterized in that: described working electrode is fixed on light tight plate main center, and contrast electrode and auxiliary electrode are surrounded on the working electrode both sides respectively.
4. fiber spectrum according to claim 1/galvanochemistry multifunctional sensing composite probe device is characterized in that: described sensing chamber is simultaneously as gaseous sample sensing chamber and fluid sample sensing chamber.
5. fiber spectrum according to claim 1/galvanochemistry multifunctional sensing composite probe device is characterized in that: described quartz glass plate is used epoxy sealing, and over against working electrode.
6. fiber spectrum according to claim 1/galvanochemistry multifunctional sensing composite probe device is characterized in that: described optical signalling has comprised ultraviolet-visible absorption signal, fluorescence signal, chemiluminescence and electrogenerated chemiluminescence signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101119498A CN101581693B (en) | 2009-06-10 | 2009-06-10 | Optical fiber spectroelectrochemistry multifunctional sensing composite probe device |
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| CN2009101119498A CN101581693B (en) | 2009-06-10 | 2009-06-10 | Optical fiber spectroelectrochemistry multifunctional sensing composite probe device |
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| CN101581693A CN101581693A (en) | 2009-11-18 |
| CN101581693B true CN101581693B (en) | 2012-12-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102590165B (en) * | 2012-02-07 | 2014-09-03 | 厦门大学 | Electricity-optics joint urine analysis biochemical system and production method thereof |
| CN102654477B (en) * | 2012-04-23 | 2014-12-17 | 华东理工大学 | Dark-field nano spectral electrochemical detection pool for plasma observation |
| CN104819936B (en) * | 2015-04-23 | 2017-10-03 | 合肥工业大学 | A kind of spectroelectrochemistry sensing composite probe for determining colloidal attitude quantum dot film |
| CN110045171B (en) * | 2019-04-02 | 2021-04-20 | 中国电子产品可靠性与环境试验研究所（（工业和信息化部电子第五研究所）（中国赛宝实验室）） | Radio frequency voltage current composite probe |
| CN111693515B (en) * | 2020-05-07 | 2022-06-17 | 四川轻化工大学 | Flow type electrochemical luminescence real-time detection device and detection method |
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2009
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Non-Patent Citations (2)
| Title |
|---|
| Yuwu Chi 等.Flow Injection Analysis System Equipped with a Newly Designed Electrochemiluminescent Detector and Its Application for Detection of 2-Thiouracil.《Analytical Chemistry》.2006,第78卷(第5期),1568-1573. * |
| 王建 等.一种流动注射电致化学发光检测系统的建立.《福州大学学报(自然科学版)》.1999,第27卷1-3. * |
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