CN206074510U - For the sample tray in universal laser ablation plasma mass spectrograph sample cell - Google Patents
For the sample tray in universal laser ablation plasma mass spectrograph sample cell Download PDFInfo
- Publication number
- CN206074510U CN206074510U CN201620986022.4U CN201620986022U CN206074510U CN 206074510 U CN206074510 U CN 206074510U CN 201620986022 U CN201620986022 U CN 201620986022U CN 206074510 U CN206074510 U CN 206074510U
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- Prior art keywords
- sample
- pallet
- convex
- top surface
- laser ablation
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- 238000000608 laser ablation Methods 0.000 title claims abstract description 21
- 230000002035 prolonged effect Effects 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 235000019994 cava Nutrition 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002000 scavenging effect Effects 0.000 abstract description 3
- 230000008685 targeting Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 8
- 239000000443 aerosol Substances 0.000 description 4
- 239000012159 carrier gas Substances 0.000 description 2
- 230000000593 degrading effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012491 analyte Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical group C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- -1 longer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000918 plasma mass spectrometry Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
This utility model provides a kind of sample tray in universal laser ablation plasma mass spectrograph sample cell, support is coiled into the shape of a disc, pallet defines top surface and bottom surface, top surface offers two symmetrically arranged sample targets, sample targeting sunken inside is into circular hole but is not passed through bottom surface, be provided with the top of sample target that two symmetrically arranged arcs are convex to be prolonged, the convex upper surface that prolongs of arc is concordant with pallet top surface, groove is additionally provided with tray side periphery.This utility model is positioned in the sample cell of laser ablation plasma mass spectrograph, it is adaptable to the fixation of sample in laser ablation system sample pond, and by reducing cell volume, steady air flow direction makes sample detection more accurate；Meanwhile, the vortex phenomenon that gas carrier is formed in sample cell is reduced, gas carrier usage amount is significantly reduced, and accelerates sample cell scavenging period, so as to reach the detection and analysis effect of fast accurate.
Description
Technical field
This utility model provides a kind of sample tray, particularly a kind of to be used for universal laser ablation plasma mass
Sample tray in instrument sample cell, belongs to laser ablation plasma mass spectrograph field.
Background technology
Laser ablation has a high precision, the characteristics of sample loss is little, is widely used in the neck such as geochemistry, material at this stage
In domain analysiss.And in actual application, as sample specification is different, size difference is larger, how in larger sample cell
Fixing compared with small sample and obtaining Accurate Analysis becomes researcher problem demanding prompt solution, and adopts different fixed forms pair
The impact of experimental precision and accuracy also can not be ignored.
Laser ablation plasma mass spectrograph is the analyte aerosol produced by laser ablation, by gas carrier by gas
Colloidal sol carries out constituent content or ratio Analysis in being delivered to plasma mass spectrometry；After laser ablation is stopped, using same carrier gases
Body is cleaned to sample cell, is to eliminate sample room pollution, the scavenging period of 30-60 seconds is provided between adjacent analysis point.It is large-scale
The cell volume that general laser degrades plasma mass spectrograph is relatively large, when testing sample size is less, in sample cell
Gas carrier whirlpool easily being formed, and aerosol being precipitated in dead angle position, the aerosol of the next sample of pollution causes measuring accuracy
And accuracy.Caused by precipitation aerosol, longer, gas carrier large usage quantity of gas carrier clearance time etc. causes certain
The wasting of resources.In addition, there is larger difference, laser ablation in the sample preparation thickness of different experiments personnel and laboratory standard specimen thickness
System has higher spatial resolution, and different height equally affects the precision and accuracy of analysis test.
Chinese patent literature CN204536206U is disclosed in " a kind of rotating channel formula laser ablation pond ", and the document is by right
The improvement that laser ablation pond overall structure is carried out, so as to reduce the actual analysis volume of sample surfaces, reaches the effect of accurate measurement
Really.But the design is improved to entirely degrading pond, is not suitable for universal equipment, need to instrument while changing and degrading pond
Part is disassembled, and improves experiment difficulty.
Therefore, problems of the prior art are, how under the premise of the new pollution of row is not introduced, to improve small sample and exist
Analysis measuring accuracy in large-scale general laser ablation plasma mass spectrograph.
The content of the invention
Compared with prior art, this utility model provides a kind of for universal laser ablation plasma mass spectrograph sample
Sample tray in product pond, by support fixation of the sample tray to sample, is that analysis sample and standard sample are in phase
In same plane, lowering apparatus vertical space error；Meanwhile, the pallet can effectively reduce cell volume, steady air flow side
To so as to reach the effect of accurate, accurate detection；Reduce the whirlpool produced as cell volume is excessive, by gas carrier；Reduce
Clearance time, improves detection precision, and sample tray is particularly suited for the detection and analysis of small samples.
Realize that the technical scheme taken by this utility model above-mentioned purpose is：
A kind of sample tray in universal laser ablation plasma mass spectrograph sample cell, support are coiled into the shape of a disc,
Pallet defines top surface and bottom surface, and top surface is provided with sample target, and sample to be harrowed and cave inward into circular hole from top surface but be not passed through bottom surface,
Sample rake is provided with that arc is convex to be prolonged, and the convex upper surface that prolongs of the arc is concordant with pallet top surface, and convex prolonging is symmetrically arranged with arc
Two, two arcs are convex prolong between form two bayonet sockets.
The sample target is symmetrically arranged with two.
Arrange fluted on the tray side periphery, the top surface of groove insertion pallet and bottom surface.
The pallet be 54 mm disks of diameter, high 8 mm of disk.
The sample target is 25.4 mm of diameter.
The arc is convex to prolong wide 2 mm, thick 0.5 mm.
Spring is provided with the circular hole, spring one end is fixed on specimen holder bottom, and the other end supports sample target bottom, sample
Testing sample is placed on seat, specimen holder is fixed on sample target by convex the prolonging of arc.
The pallet is formed in one.
The pallet material is plastics or metal alloy.
Compared with prior art, this utility model has advantages below：1st, this utility model is shelled suitable for universal laser
Erosion plasma mass spectrograph；2nd, effectively reduce the whirlpool of gas carrier generation in sample cell；3rd, shorten clearance time；4th, effectively
Improve sample detection degree of accuracy and accuracy；5th, this utility model simple structure, low cost of manufacture, strong applicability, with higher
Economic worth.
Description of the drawings
Fig. 1 is sample tray structure top view provided by the utility model.
Fig. 2 is sample tray structure sectional view.
In figure：1st, pallet, 2, sample target, 3, arc is convex prolongs, 4, groove, 5, circular hole, 6, bayonet socket.
Specific embodiment
Detailed specific description is done to this utility model below in conjunction with drawings and the specific embodiments, but it is of the present utility model
Protection domain is not limited to following examples.
Such as the sample carrier in universal laser ablation plasma mass spectrograph sample cell provided by the utility model
Shown in vertical view Fig. 1 of disk, section view Fig. 2,1 one-tenth of pallet is discoid, and pallet defines top surface and bottom surface, and top surface is provided with sample target 2,
Sample rake 2 caves inward into circular hole 5 from top surface but is not passed through bottom surface, and for placing sample, sample rake 2 is provided with that arc is convex to prolong 3,
Arc is convex to prolong 3 upper surfaces and 1 either flush of pallet, and arc is convex to be prolonged 3 and be symmetrically arranged with two, and two convex prolonging of arc formed between 3
Two bayonet sockets 6, arc is convex to prolong 3 for fixing specimen holder, and sample is placed on specimen holder, specimen holder by rotate after bayonet socket 6 to
Arc is convex to prolong 3 bottoms, so as to the convex 3 stop specimen holders that prolong of arc are moved outward, play a part of fixed support sample, specimen holder
Bottom is additionally provided with spring, and spring one end is fixedly connected on specimen holder bottom, and the other end is supported in 2 bottom of sample target, specimen holder
It is fixed at the top of sample target two under spring action arc is convex and prolongs on 3.Also open up on the disk sidepiece periphery of pallet 1
Fluted 4, groove 4 is through to bottom surface from pallet top surface, to adapt to sample cell internal structure, pallet 1 is arranged in sample cell.
Pallet 1 be 54 mm disks of diameter, high 8 mm of disk；Sample target 2 is symmetrically arranged with 2, and the circular hole 5 of sample target 2 is
25.4 mm holes of diameter, so that specimen holder can be placed and secured on sample target；On sample target 2, two arcs are convex prolongs 3 wide 2 mm, thickness
0.5 mm, with 1 either flush of pallet.Pallet 1 is formed in one structure；1 material of pallet can select plastics or metal alloy.
During work, pallet 1 is positioned in the sample cell of laser ablation plasma mass spectrograph, by 1 position of pallet
Appropriate adjustment with obtain with sample cell inner structure coordinate after, fixed tray 1；The specimen holder bottom for being placed with sample is provided with bullet
Spring structure, specimen holder are placed on sample target 2 by bayonet socket 6, are fixed on that arc is convex to be prolonged in 3, spring after specimen holder rotation
One end is fixed on specimen holder, and the other end supports 2 bottom of sample target so that sample is fixed on sample target 2, then starts instrument
Device, tests and analyzes to sample.
This utility model reduces the sample cell of large-scale general laser ablation plasma mass spectrograph by arranging pallet 1
Volume, so as to reach the effect of Accurate Analysis sample；Meanwhile, the volume for reducing sample cell causes the carrier gas scale of construction being passed through substantially to subtract
It is few, the scavenging period between adjacent analysis point is reduced, while gas carrier loss is reduced, sample detection is substantially increased
Precision；Product is cheap, highly versatile；Scientific research personnel is solved in actual tests by support holder structure of the present utility model
The general large-scale mass spectrograph run in operation can not adapt to the detection needs of different size sample very well.
The content referred in above-described embodiment is the present invention preferably embodiment, not to restriction of the present utility model,
On the premise of conceiving without departing from the present utility model, any obvious replacement is protection domain of the present utility model
Within.
Claims (9)
1. a kind of sample tray in universal laser ablation plasma mass spectrograph sample cell, support are coiled into the shape of a disc, its
It is characterised by：Pallet defines top surface and bottom surface, and top surface is provided with sample target, and sample rake caves inward into circular hole but not from top surface
Through bottom surface, sample rake is provided with that arc is convex to be prolonged, and the convex upper surface that prolongs of the arc is concordant with pallet top surface, and arc is convex to prolong right
Title is provided with two, two arcs are convex prolong between form two bayonet sockets.
2. sample tray according to claim 1, the sample target are symmetrically arranged with two.
3. sample tray according to claim 1, arranges fluted on the tray side periphery, groove insertion pallet
Top surface and bottom surface.
4. sample tray according to claim 1, the pallet is 54 mm disks of diameter, high 8 mm of disk.
5. sample tray according to claim 1, the sample target are 25.4 mm circular holes of diameter.
6. sample tray according to claim 1, the arc is convex to prolong wide 2 mm, thick 0.5 mm.
7. sample tray according to claim 1, is provided with spring in the circular hole, and spring one end is fixed on specimen holder bottom
Portion, the other end support sample target bottom, and testing sample is placed on specimen holder, and specimen holder is fixed on sample target by convex the prolonging of arc
On.
8. sample tray according to claim 1, the pallet are formed in one.
9. sample tray according to claim 1, the pallet material are plastics or metal alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986022.4U CN206074510U (en) | 2016-08-30 | 2016-08-30 | For the sample tray in universal laser ablation plasma mass spectrograph sample cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620986022.4U CN206074510U (en) | 2016-08-30 | 2016-08-30 | For the sample tray in universal laser ablation plasma mass spectrograph sample cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206074510U true CN206074510U (en) | 2017-04-05 |
Family
ID=58433440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620986022.4U Expired - Fee Related CN206074510U (en) | 2016-08-30 | 2016-08-30 | For the sample tray in universal laser ablation plasma mass spectrograph sample cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206074510U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198709A (en) * | 2016-08-30 | 2016-12-07 | 中山大学 | Sample tray in universal laser ablation plasma mass spectrograph sample cell |
| CN107449648A (en) * | 2017-06-30 | 2017-12-08 | 中国科学院广州地球化学研究所 | A kind of preparation method of the sample target of ore mineral suitable for ion microprobe analysis |
| CN107870118A (en) * | 2017-12-26 | 2018-04-03 | 中国科学院地质与地球物理研究所 | A kind of uniform air flow laser ablation pond and its application |
-
2016
- 2016-08-30 CN CN201620986022.4U patent/CN206074510U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106198709A (en) * | 2016-08-30 | 2016-12-07 | 中山大学 | Sample tray in universal laser ablation plasma mass spectrograph sample cell |
| CN106198709B (en) * | 2016-08-30 | 2019-06-18 | 中山大学 | For the sample tray in universal laser ablation plasma mass spectrograph sample cell |
| CN107449648A (en) * | 2017-06-30 | 2017-12-08 | 中国科学院广州地球化学研究所 | A kind of preparation method of the sample target of ore mineral suitable for ion microprobe analysis |
| CN107449648B (en) * | 2017-06-30 | 2019-09-27 | 中国科学院广州地球化学研究所 | A kind of preparation method of the sample target of the ore mineral suitable for ion microprobe analysis |
| CN107870118A (en) * | 2017-12-26 | 2018-04-03 | 中国科学院地质与地球物理研究所 | A kind of uniform air flow laser ablation pond and its application |
| CN107870118B (en) * | 2017-12-26 | 2019-07-02 | 中国科学院地质与地球物理研究所 | A kind of uniform air flow laser ablation pond and its application |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170405 Termination date: 20170830 |