CN2700879Y - Multiple planes type rolling resistance solid-phase micro extraction apparatus - Google Patents
Multiple planes type rolling resistance solid-phase micro extraction apparatus Download PDFInfo
- Publication number
- CN2700879Y CN2700879Y CN 200420023591 CN200420023591U CN2700879Y CN 2700879 Y CN2700879 Y CN 2700879Y CN 200420023591 CN200420023591 CN 200420023591 CN 200420023591 U CN200420023591 U CN 200420023591U CN 2700879 Y CN2700879 Y CN 2700879Y
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- China
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- holding rod
- probe
- rod end
- end cap
- phase micro
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Abstract
The utility model discloses a multiple plane type rolling resistance solid-phase micro extraction apparatus, comprising a probe rod, a regulating stem, a holding rod and a holding rod end cover. The probe rod is connected with the holding rod through the regulating stem, and a probe tube with a probe fibre head is led out from the center of the holding rod end cover. The regulating stem is provided with a guiding groove, and a fixing screw at the tail part of the probe rod is inserted in the guiding groove. The position of the probe rod in the regulating stem is fixed by screws to regulate the extension or retraction of the probe tube from the holding rod end cover. The holding rod and the outer wall of the holding rod end cover tightly matched with the holding rod respectively or simultaneously adopt the multiple plane configuration of a prism. The utility model can prevent the solid-phase micro extraction apparatus from rolling on a worktable and protecting the fibre head from damage, without increasing manufacturing cost of the apparatus or influencing original working performance.
Description
Technical field
The utility model relates to a kind of solid-phase micro-extracting device, relates in particular to a kind of many plane formulas anti-rolling solid-phase micro-extracting device, is used for analysis biological and general volatilizable and half volatile organic sample, belongs to instrumental analysis, sample pretreatment field.
Background technology
Chromatographic technique is one of main means of Analysis of environmental samples.Because environmental sample complexity, changeable and concentration is lower, so just can carry out various instrumental analysis after pre-treatment must be passed through.That traditional pre-treating method generally has is with an organic solvent more, the processing time is long and the many shortcomings of operation steps, and in The whole analytical process the sample pretreatment larger proportion that accounts for consuming time.Solid phase micro-extraction method can carry out assay determination to volatilizable in the gas, liquid, solid sample or the sample that partly volatilizees fast and accurately because of it, and does not need organic solvent, has " green " advantage and is subjected to extensive concern.
Commercially available solid-phase micro-extracting device (as the solid-phase microextraction product of U.S. Supelco company) mainly is made up of probe and holding rod two parts now, probe is by being coated with the various resistant to elevated temperatures chemical substances of stain in quartz fibre or wire surface or the coating active carbon layer constitutes, utilize chemical substance to have extractibility or activated charcoal that adsorbability is arranged to pollutant, fiber is inserted or be exposed in the sample, contact generation extraction (absorption) with test substance, after finishing extraction (absorption), regain probe, insert instrument injection port thermal desorptions such as gas chromatography again, it is fixed that test substance is discharged the pacing of going forward side by side.Probe is controlled by probe rod, is protected in the stainless steel outer sleeve when not using.Probe rod is connected with holding rod with adjusting screw by adjuster bar, and the control probe stretches out or withdraws from the holding rod end cap.The holding rod of this solid phase micro-extraction device and holding rod end cap are smooth right cylinder, and the friction factor between the worktable is little, tumbles from worktable easily in use, cause the fiber head damage.
Summary of the invention
The purpose of this utility model is at the deficiencies in the prior art, and a kind of many plane formulas anti-rolling solid-phase micro-extracting device is provided, and increases the job stability of device, and protection probe fiber head is avoided damage.
For realizing such purpose, the utility model improves the structure and the moulding of installing under the prerequisite of the inner basic structure of holding device.By the cylindric prism that changes two or more planes into, the holding rod end cap is changed the holding rod outer wall prism of two or more planes into by original circle, perhaps holding rod and holding rod end cap are changed simultaneously into the prism on two or more planes.
The utility model mainly comprises probe rod, adjuster bar and holding rod, probe rod is connected with holding rod by adjuster bar, holding rod and holding rod end cap wringing fit, the probe needle tubing that has the probe fiber head is drawn from holding rod end cap center, probe needle tubing top is with the probe sheath pipe, have on the adjuster bar to guide groove, the fixed screw of probe rod afterbody is embedded in guide groove, regulates control probe needle tubing by the position of fixed screw stationary probe bar in adjuster bar and stretches out or withdraw from the holding rod end cap.The outer wall of holding rod and holding rod end cap adopts many flat shapes of prism respectively or simultaneously, improves the stability that micro-extraction device is placed at worktable with this.
The utility model changes the holding rod and the holding rod end cap of micro-extraction device into many plane formulas structure, its advantage is: will install to contact from dotted line with the surface of contact of worktable and become the face contact, increased stability, solid-phase micro-extracting device can stably be placed on the worktable and can not roll easily, avoid fiber head to be damaged.And the manufacturing cost of device does not increase, and does not influence original serviceability.
Description of drawings
Fig. 1 is the one-piece construction synoptic diagram of the utility model solid-phase micro-extracting device.
Among Fig. 1,1 is probe rod, and 2 is adjuster bar, and 3 is fixed screw, and 4 is to guide groove, and 5 is holding rod, and 6 is the holding rod end cap, and 7 is the probe sheath pipe, and 8 is the probe needle tubing, and 9 is fiber head.
Fig. 2 is the structural representation of the utility model holding rod.
Fig. 3 is the structural representation of the utility model holding rod end cap.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is further described.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.As shown in Figure 1, the utility model mainly comprises probe rod 1, adjuster bar 2 and holding rod 5, probe rod 1 is connected with holding rod 5 by adjuster bar 2, have on the adjuster bar 2 to guide groove 4, the fixed screw 3 of probe rod afterbody is embedded in guide groove 4, probe rod 1 moves in adjuster bar 2, regulates and the position of stationary probe bar 1 in adjuster bar 2 by fixed screw 3.Holding rod 5 and holding rod end cap 6 wringing fits, the probe needle tubing 8 that has probe fiber head 9 is drawn from holding rod end cap 6 centers, and probe needle tubing 8 tops are with probe sheath pipe 7, and probe rod 1 control probe needle tubing 8 stretches out or withdraws from holding rod end cap 6.The outer wall of holding rod 5 and friction tight with it holding rod end cap 6 all adopts many flat shapes of prism.
Fig. 2 is the structural representation of the utility model holding rod.As shown in Figure 2, the outer wall of holding rod adopts many flat shapes of prism.
Fig. 3 is the structural representation of the utility model holding rod end cap.As shown in Figure 3, the outer wall of holding rod end cap adopts many flat shapes of prism.
In the utility model; can be that the outer wall of holding rod 5, the outer wall of holding rod end cap 6 adopt prismatic shape respectively; the outer wall that also can be holding rod 5 and holding rod end cap 6 all adopts prismatic shape simultaneously, increases the stability that micro-extraction device is placed at worktable with this, and the protection fiber head exempts from damage.And the manufacturing cost of device does not increase, and does not influence original serviceability.
Claims (1)
1, a kind of many plane formulas anti-rolling solid-phase micro-extracting device, comprise probe rod (1), adjuster bar (2), holding rod (5) and holding rod end cap (6), it is characterized in that probe rod (1) is connected with holding rod (5) by adjuster bar (2), holding rod (5) and holding rod end cap (6) wringing fit, the probe needle tubing (8) that has probe fiber head (9) is drawn from holding rod end cap (6) center, probe needle tubing (8) top is with probe sheath pipe (7), have on the adjuster bar (2) to guide groove (4), the fixed screw of probe rod afterbody (3) is embedded in guide groove (4), regulate control probe needle tubing (8) by the position of fixed screw (3) stationary probe bar (1) in adjuster bar (2) and stretch out or withdraw from holding rod end cap (6), the outer wall that holding rod (5) reaches friction tight with it holding rod end cap (6) adopts many flat shapes of prism respectively or simultaneously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023591 CN2700879Y (en) | 2004-06-09 | 2004-06-09 | Multiple planes type rolling resistance solid-phase micro extraction apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023591 CN2700879Y (en) | 2004-06-09 | 2004-06-09 | Multiple planes type rolling resistance solid-phase micro extraction apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2700879Y true CN2700879Y (en) | 2005-05-18 |
Family
ID=34770732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023591 Expired - Fee Related CN2700879Y (en) | 2004-06-09 | 2004-06-09 | Multiple planes type rolling resistance solid-phase micro extraction apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2700879Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912769A (en) * | 2010-07-09 | 2010-12-15 | 中山大学 | Extraction head detachable type solid phase micro extraction probe and preparation method thereof |
-
2004
- 2004-06-09 CN CN 200420023591 patent/CN2700879Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101912769A (en) * | 2010-07-09 | 2010-12-15 | 中山大学 | Extraction head detachable type solid phase micro extraction probe and preparation method thereof |
| CN101912769B (en) * | 2010-07-09 | 2013-02-27 | 中山大学 | Extraction head detachable type solid phase micro extraction probe 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 |