CN2414416Y - Capillary tube electrochemistry tester pool - Google Patents
Capillary tube electrochemistry tester pool Download PDFInfo
- Publication number
- CN2414416Y CN2414416Y CN 99241084 CN99241084U CN2414416Y CN 2414416 Y CN2414416 Y CN 2414416Y CN 99241084 CN99241084 CN 99241084 CN 99241084 U CN99241084 U CN 99241084U CN 2414416 Y CN2414416 Y CN 2414416Y
- Authority
- CN
- China
- Prior art keywords
- electrochemical
- kapillary
- working electrode
- pilot hole
- electrode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005518 electrochemistry Effects 0.000 title 1
- 238000005251 capillar electrophoresis Methods 0.000 claims abstract description 7
- 238000001514 detection method Methods 0.000 claims description 19
- 230000008685 targeting Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000002349 favourable effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000035945 sensitivity Effects 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 abstract 1
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 229910052697 platinum Inorganic materials 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The utility model relates to a high efficient electrochemical tester pool for a capillary electrophoresis instrument, which is an analytical instrument component. The utility model is characterized in that the electrochemical pool wall is provided with fixing sealing devices on the inlet positions of a capillary tube and a working electrode, and the interior of the electrochemical pool is provided with a guiding and positioning body which is provided with a positioning hole and a solution channel. The capillary tube and the working electrode are positioned in the positioning hole. The utility model has the advantages of convenient operation, simple manufacture process, high sensitivity, favorable reproduction quality, etc.
Description
The utility model relates to a kind of analytical instrument.
Capillary Electrophoresis is that developed recently is rapid, a kind of very widely method for separating and analyzing of application, is considered to one of most important analytical approach of the nineties.Detecting device is the important composition part of capillary electrophoresis apparatus, directly influences detected object, detection sensitivity, the range of linearity and instrument cost.Electrochemical detectors such as ampere detector, electric conductivity detector and electric potential detector are detecting device commonly used, and cost is lower.In the electrochemical detector, detection cell is a vitals.Although the research of the detection cell of existing many related detection devices is reported both at home and abroad, the commercialization instrument is very rare.Trace it to its cause, some design is very complicated, and production technology is difficult to realize; Troublesome poeration when some is then used, poor reproducibility.Therefore ampere detector still rests on laboratory stage at present, fails to apply.
The purpose of this utility model is the shortcoming that overcomes prior art, provides a kind of manufacture craft uncomplicated, the electrochemical detector detection cell of easy to operate during use, highly sensitive, favorable reproducibility.
Second purpose of the present utility model is that the electrochemical detector detection cell that is provided all is suitable for electrochemical detectors such as ampere detector, electric conductivity detector and electric potential detectors.
Be that representative is described with the ampere detector detection cell below.
The fixed form of relative position, kapillary and the electrode of working electrode and capillary outlet end and installation etc. are the principal elements that influences detector performance in the electrochemical cell of ampere detector detection cell.For this reason, the utility model adopts following technical scheme:
In electrochemical cell, be provided with the guide-localization body.The guide-localization body is provided with pilot hole, and the aperture is slightly larger than the external diameter of kapillary and working electrode, and when kapillary and working electrode insert from both sides respectively, both will be aimed at by strictness.The two-port of pilot hole is made horn-like targeting port, inserts to make things convenient for working electrode and kapillary.On the axis of pilot hole or the other solution channel that intersects at pilot hole that is provided with of axis, this passage is communicated with pilot hole, contacts with solution in the electrochemical cell with the end of assurance kapillary and working electrode.
If working electrode and kapillary external diameter differ greatly, then aperture, pilot hole both sides can be processed into corresponding respectively with them.
The wall of electrochemical cell is provided with movable fixing seal device in capillary inlet and working electrode porch.This fixing seal device adopts the mode of spiral shell head or screens compressing O-ring seal.
Above-mentioned basic structure is suitable for newel post's formula (end-column) and from pillar (off-column) and other detection mode.
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the structural representation of newel post's formula detecting device detection cell,
Fig. 2 is the structural representation from pillar detecting device detection cell.
See figures.1.and.2, the utility model comprises electrochemical cell (1), working electrode (8) and high-voltage power supply ground electrode (9), establish a buffer pool (2) (Fig. 2 detects from pillar) in case of necessity, it is characterized in that, in electrochemical cell (1), be provided with guide-localization body (3), guide-localization body (3) is provided with pilot hole (4) and solution channel (5), pilot hole (4) intersects and is communicated with solution channel (5), kapillary (6) or kapillary are taken over (7) and working electrode (8) is positioned at pilot hole (4), and the wall of electrochemical cell (1) is at kapillary or kapillary is taken over and the porch of working electrode is provided with movable fixing seal device (10).
The two ends of the pilot hole (4) of guide-localization body (3) are provided with horn-like targeting port (11).
Fixing seal device (10) is made up of spiral shell head (12) and O-ring seal (13), and spiral shell head (12) is fixed by the internal screw thread of external screw teeth and galvanochemistry pool wall; Also the spiral shell head can be made dop.
Shown in Figure 2 in pillar detecting device detection cell, kapillary (6) is taken between (7) with kapillary and is connected with interface (14), and interface (14) and high-voltage power supply ground electrode (9) are positioned at buffer pool (2).
During application,, in electrochemical cell, also insert contrast electrode if use two electrode systems; If use three electrode detection, insertion contrast electrode and in electrochemical cell then to electrode.
Contrast electrode (15) and high-voltage power supply pond electrode (9) and also can adopt the fixed form that is similar to working electrode to electrode promptly seal by spiral shell head and O-ring seal and fix.
When the utility model detection cell was used for electric conductivity detector, above-mentioned working electrode changed electricity into and leads the response electrode, and above-mentioned contrast electrode changes platinum electrode into, and electricity is led the response electrode and platinum electrode is access to conductivity meter as the conductance cell electrode.
When being used for electric potential detector, above-mentioned working electrode changes indicator electrode into, is access to the high impedance potential difference meter with contrast electrode.
The utility model has the advantage of working electrode (or electricity is led response electrode or indicator electrode) Be easy to strict the aligning, easy to operate, highly sensitive, reproduction with capillary or capillary adapter Property is good; And manufacture craft is uncomplicated, is convenient to commercialization.
Another big advantage of the present utility model is that this detection cell is to ampere detector, electric conductivity detector All be suitable for the electrochemical detector such as electric potential detector.
Claims (3)
1. capillary electrophoresis electrochemical detecting device detection cell, comprise electrochemical cell (1), working electrode (8) and high-voltage power supply ground electrode (9), establish a buffer pool (2) in case of necessity, it is characterized in that, in electrochemical cell (1), be provided with guide-localization body (3), guide-localization body (3) is provided with pilot hole (4) and solution channel (5), pilot hole (4) intersects and is communicated with solution channel (5), kapillary (6) or kapillary are taken over (7) and working electrode (8) is positioned at pilot hole (4), and the wall of electrochemical cell (1) is at kapillary or kapillary is taken over and the porch of working electrode is provided with movable fixing seal device (10).
2. capillary electrophoresis electrochemical detecting device detection cell according to claim 1 is characterized in that, the two ends of the pilot hole (4) of guide-localization body (3) are provided with horn-like targeting port (11).
3. capillary electrophoresis electrochemical detecting device detection cell according to claim 1 is characterized in that described fixing seal device (10) is made up of spiral shell head (12) and O-ring seal (13), and spiral shell head (12) is fixed by the internal screw thread of external screw teeth and galvanochemistry pool wall; Also the spiral shell head can be made dop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241084 CN2414416Y (en) | 1999-12-16 | 1999-12-16 | Capillary tube electrochemistry tester pool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99241084 CN2414416Y (en) | 1999-12-16 | 1999-12-16 | Capillary tube electrochemistry tester pool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2414416Y true CN2414416Y (en) | 2001-01-10 |
Family
ID=34028007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99241084 Expired - Fee Related CN2414416Y (en) | 1999-12-16 | 1999-12-16 | Capillary tube electrochemistry tester pool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2414416Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763544B (en) * | 2005-09-30 | 2010-05-26 | 中国科学院长春应用化学研究所 | Minisize detection tank for high performance liquid chromatography-electrochemical detection |
| CN105588800A (en) * | 2015-12-17 | 2016-05-18 | 中国船舶重工集团公司第七二五研究所 | Electrochemistry electrolytic cell for deep sea simulation environment tests |
| CN107064276A (en) * | 2017-06-03 | 2017-08-18 | 福州大学 | Capillary pipe electrophoresis electrochemistry detecting pool and preparation method thereof |
-
1999
- 1999-12-16 CN CN 99241084 patent/CN2414416Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1763544B (en) * | 2005-09-30 | 2010-05-26 | 中国科学院长春应用化学研究所 | Minisize detection tank for high performance liquid chromatography-electrochemical detection |
| CN105588800A (en) * | 2015-12-17 | 2016-05-18 | 中国船舶重工集团公司第七二五研究所 | Electrochemistry electrolytic cell for deep sea simulation environment tests |
| CN107064276A (en) * | 2017-06-03 | 2017-08-18 | 福州大学 | Capillary pipe electrophoresis electrochemistry detecting pool and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |