CN201145684Y - Magnetic induction detecting head - Google Patents
Magnetic induction detecting head Download PDFInfo
- Publication number
- CN201145684Y CN201145684Y CNU2007201788883U CN200720178888U CN201145684Y CN 201145684 Y CN201145684 Y CN 201145684Y CN U2007201788883 U CNU2007201788883 U CN U2007201788883U CN 200720178888 U CN200720178888 U CN 200720178888U CN 201145684 Y CN201145684 Y CN 201145684Y
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- CN
- China
- Prior art keywords
- magnetic
- telefault
- conductive shell
- magnetic conductive
- detection device
- 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
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model relates to an analysis detection device. An induction coil is arranged outside a pipe-shaped passage, a magnetism conducting casing covers the outside of the induction coil, and the magnetism conducting casing is made into a magnetic ring or a magnetic cup. The analysis detection device is used for the detections such as on-line isolation analysis of capillary electrophoresis, microflow control core, vapor phase chromatography, high efficiency liquid phase chromatography, etc. The analysis detection device has the advantages of good versatility, pollution resistance, simpler application and operation, etc.
Description
Technical field
The utility model relates to a kind of analysis and detection device.Especially a kind of pick-up unit that is applicable to ON-LINE SEPARATION analytical approach such as Capillary Electrophoresis, micro-fluidic chip, gas chromatography, high performance liquid chromatography etc.
Background technology
Detecting device is one of core of instruments such as ON-LINE SEPARATION analysis such as Capillary Electrophoresis, micro-fluidic chip, gas chromatography, high performance liquid chromatography.Present detecting device mainly contains ultraviolet absorption detector, laser induced fluorescence detector, electric conductivity detector, ampere detector, mass detector etc.Wherein, ultraviolet absorption detector and electric conductivity detector versatility are stronger, but sensitivity is lower; Laser induced fluorescence detector and ampere detector sensitivity are higher, but determination object is few; And mass detector relates to expensive instrument, and cost is very high.
Summary of the invention
The purpose of this utility model provides a kind of magnetic induction detection head that is applicable to ON-LINE SEPARATION analysis such as Capillary Electrophoresis, micro-fluidic chip, gas chromatography, high performance liquid chromatography etc.
Basic technical scheme of the present utility model is: at the arranged outside telefault of tubular conduit, the outside of telefault is with magnetic conductive shell.The parallel tubular conduit of passing through of the magnetic line of force of telefault central authorities.Telefault is access to inductance measurement device, and the output terminal of inductance measurement device is access to registering instrument.
Materials such as magnetic conductive shell available iron oxysome, Fe-Nd-B alloy.Magnetic conductive shell can be made magnet ring, i.e. the ring-type magnetic conductive shell; Or make cup-shaped, i.e. magnetic conductive shell.
In the utility model course of work, the magnetic line of force in the telefault is parallel by tubular conduit, and the magnetic line of force of telefault outer then passes through from magnetic conductive shell.The magnetic permeability of material directly influences the inductance value of telefault in the telefault.When magnetic permeability greater than the tested component stream of separating medium during through telefault, it is big that the output signal of inductance measurement device becomes, posivtive spike appears in collection of illustrative plates; To magnetic permeability less than the tested component stream of separating medium when the telefault, the output signal of inductance measurement device diminishes, negative peak appears in collection of illustrative plates.
Advantage of the present utility model and good effect are embodied in: all materials all have certain magnetic permeability, has certain magnetic property, as long as select suitable separating medium, the magnetic permeability of each component and separating medium be there are differences, just can response all be arranged to various components.Therefore this pick-up unit has good versatility.
In addition, only need when the utility model is used telefault is enclosed within the tubular conduit outside, or tubular conduit is passed telefault.Owing to contacting with solution, electrode do not cause electrode fouling like that as Electrochemical Detection; Do not resemble yet and to scrape off the outer protective seam of some split tunnel the optical detection and make it easily to fracture.The utility model is also easier on using.
Description of drawings
Fig. 1 is the structural representation of the magnetic induction detection head of the utility model band magnet ring shell mechanism.
Fig. 2 is the structural representation of the magnetic induction detection head of the utility model band magnetic cup shell mechanism.
Among the figure, 1 is tubular conduit, as separation capillary, and chromatographic column, extension pipe etc.; 2 is coil; 3 is magnet ring shape magnetic conductive shell; 4 is magnetic cup-shaped magnetic conductive shell.
Embodiment
Introduce embodiment below in conjunction with accompanying drawing.
See figures.1.and.2, at the arranged outside telefault (2) of tubular conduit (1), the outside of telefault (2) is with magnetic conductive shell (3,4).The magnetic line of force in the telefault is parallel by tubular conduit, and the magnetic line of force of telefault outer then passes through from magnetic conductive shell.
The magnetic permeability of material directly influences the inductance value of telefault in the telefault, in view of the above, can measure the magnetic permeability of material by the inductance value of inductance measuring coil.During measurement, telefault is access to inductance measurement device; During as the magnetic induction detection head of ON-LINE SEPARATION analysis such as Capillary Electrophoresis, micro-fluidic chip, gas chromatography, high performance liquid chromatography etc., the output terminal of inductance measurement device is access to registering instrument.
Materials such as magnetic conductive shell available iron oxysome, Fe-Nd-B alloy are made shapes such as magnet ring or magnetic cup, i.e. ring-type magnetic conductive shell (3) or cup-shaped magnetic conductive shell (4).
When being used as the magnetic induction detection head of separation capillary electrophoresis, telefault is enclosed within the nearly endpiece of the separation capillary outside, or separation capillary is passed telefault.During as the magnetic induction detection head of gas chromatography, high performance liquid chromatography etc., structural similarity.Also can connect the extension pipe, use this magnetic induction detection head at the post end of ON-LINE SEPARATION.
The utility model is not limited to the foregoing description.
Claims (2)
1. a magnetic induction detection head comprises telefault and magnetic conductive shell, it is characterized in that, at the arranged outside telefault (2) of tubular conduit (1), the outside of telefault (2) is with magnetic conductive shell (3,4).
2. magnetic induction detection head according to claim 1 is characterized in that, magnetic conductive shell is ring-type magnetic conductive shell (3) or cup-shaped magnetic conductive shell (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201788883U CN201145684Y (en) | 2007-12-29 | 2007-12-29 | Magnetic induction detecting head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201788883U CN201145684Y (en) | 2007-12-29 | 2007-12-29 | Magnetic induction detecting head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201145684Y true CN201145684Y (en) | 2008-11-05 |
Family
ID=40082567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201788883U Expired - Fee Related CN201145684Y (en) | 2007-12-29 | 2007-12-29 | Magnetic induction detecting head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201145684Y (en) |
-
2007
- 2007-12-29 CN CNU2007201788883U patent/CN201145684Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081105 Termination date: 20100129 |