CN102095620B - Method for recovering particles of wiping sample by using conductive adhesive as carrier - Google Patents
Method for recovering particles of wiping sample by using conductive adhesive as carrier Download PDFInfo
- Publication number
- CN102095620B CN102095620B CN2010106206955A CN201010620695A CN102095620B CN 102095620 B CN102095620 B CN 102095620B CN 2010106206955 A CN2010106206955 A CN 2010106206955A CN 201010620695 A CN201010620695 A CN 201010620695A CN 102095620 B CN102095620 B CN 102095620B
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- China
- Prior art keywords
- carrier
- graphite carbon
- carbon plate
- particulate
- conducting resinl
- 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.)
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000002245 particle Substances 0.000 title claims abstract description 15
- 239000000853 adhesive Substances 0.000 title abstract 4
- 230000001070 adhesive effect Effects 0.000 title abstract 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 19
- 239000010439 graphite Substances 0.000 claims abstract description 19
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000001035 drying Methods 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 238000005273 aeration Methods 0.000 claims description 3
- 238000011084 recovery Methods 0.000 abstract description 16
- 238000004140 cleaning Methods 0.000 description 7
- 239000004744 fabric Substances 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 229910052770 Uranium Inorganic materials 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000010355 oscillation Effects 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910052778 Plutonium Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019441 ethanol Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- OYEHPCDNVJXUIW-UHFFFAOYSA-N plutonium atom Chemical compound [Pu] OYEHPCDNVJXUIW-UHFFFAOYSA-N 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000010206 sensitivity analysis Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a method for recovering particles of a wiping sample by taking conductive adhesive as a carrier, which comprises the steps of firstly, putting a graphite carbon sheet into absolute ethyl alcohol to be cleaned for 1-2 minutes, taking out the graphite carbon sheet to be dried, and then covering the graphite carbon sheet with the conductive adhesive; and then, loading the recovered carrier into a recovery device for particle recovery, wherein the recovery process is carried out for 4-10 minutes in a vacuum state. The invention provides the method for recovering the particles of the wiping sample by taking the conductive adhesive as the carrier, which has the advantages of simple operation, quick recovery, high recovery rate and good dispersibility of the recovered particles.
Description
Technical field
The present invention relates to the particulate analysis technical field in the nuclear safeguards environmental monitoring, particularly a kind of is the particle recovering method of the wipe samples of carrier with the conducting resinl.
Background technology
IAEA in 1993 has proposed one " 93+2 " plan and mainly on 2 o'clock, has strengthened the nuclear safeguards system, and one of them is environmental sampling (comprising wipe samples) and environmental monitoring.Particulate analysis is a high-sensitivity analysis technology in the environmental monitoring, has become the routine techniques in the nuclear safeguards environmental monitoring, and the effect that can not replace is arranged.The micron or the sub-micron particulate that have responsive nucleic can form gasoloid and in atmosphere, suspend for a long time, thereby can be spread in the environment far away.Collect these particulates, specific species is wherein carried out analysis to measure, valuable information can be provided for strengthening the nuclear safeguards system.Generally adopt cleaning wiping cloth that the wiping sampling is carried out in around the nuclear facilities and inside, come acquired information through single uranium particulate on SIMS (SIMS) the analysis wipe samples.
SIMS is ripe to the measuring technique of the isotope ratio of particulate, to the transfer of particulate on the cleaning wiping cloth be recycled into to accurately analyzing the committed step of uranium isotope ratio.It is at present main in the world that what adopt is that the supersonic oscillations method reclaims particulate, earlier the particulate sonic oscillation on the cleaning wiping cloth in heptane, again the heptane hanging drop that contains particulate to carbon plate, consolidate evaporate to dryness for 300 ℃ and be used for sims analysis.But there are two problems in this method: the one, and the recovery lower (being about 25%); The 2nd, a plurality of particulates that reclaim are prone to assemble together, are unfavorable for the analysis of single particulate.
In another part of applicant one Chinese patent application prospectus CN101655422A (open day is on February 24th, 2010), once described a kind of device of recovering particles by using vacuum collision method, this patent only is described the structure of device.And also do not see play-by-play in the pertinent literature at home and abroad for the method that reclaims particulate at present.
Summary of the invention
The present invention has overcome deficiency of the prior art, provide a kind of simple to operate, gain quick return, the recovery is high, reclaim microparticulate property good be the particle recovering method of the wipe samples of carrier with the conducting resinl.
In order to solve the problems of the technologies described above, the present invention realizes through following technical scheme:
A kind of is the particle recovering method of the wipe samples of carrier with the conducting resinl, and key is that this method at first is placed on the graphite carbon plate and cleans 1～2 minute in the absolute ethyl alcohol, takes out and treats then conducting resinl to be covered its drying on the graphite carbon plate; The recovery carrier of then the graphite carbon plate being processed is packed into and is carried out particulate in the retracting device and reclaim, and removal process was carried out under vacuum state 4～10 minutes.
Described graphite carbon plate cleans to the graphite carbon plate is positioned in the container that absolute ethyl alcohol is housed in absolute ethyl alcohol, in ultrasonic oscillator, cleans.Described drying is treated its drying for the graphite carbon plate being placed on volatilize on the filter paper.Described removal process is meant that under vacuum state reclaiming particulate carried out 5 minutes in the vacuum bag glove, and vacuum bag glove air intake opening charges into oxygen continuously, and it is certain that the aeration quantity in the vacuum bag glove keeps.
Compared with prior art, the invention has the beneficial effects as follows:
Complicated operation, the recovery that the present invention has changed traditional particle recovering method is low, the shortcoming of recovery microparticulate property difference.And adopt the graphite carbon plate in absolute ethyl alcohol, to clean in the method, and guaranteed the cleaning on carbon plate surface, utilize ultrasonic oscillator to clean the carbon dust that can better remove the carbon plate surface.The carbon plate scavenging period is controlled at the fastness of the carbon plate that can guarantee that carbon plate cleaned up like this in 1～2 minute and can guarantee.The removal process of particulate is carried out under vacuum state, has guaranteed that recovery particulate process avoids polluting.
Embodiment
Through embodiment the present invention is described in further detail below:
A kind of is the particle recovering method of the wipe samples of carrier with the conducting resinl, and this method may further comprise the steps:
At first get the graphite carbon plate and be positioned in the beaker that absolute ethyl alcohol is housed, in ultrasonic oscillator, cleaned 1～2 minute, to remove the carbon dust on graphite carbon plate surface.After the graphite carbon plate clean to be accomplished, be placed on treat the ethanol volatilization on the filter paper after, cut-off directly is about the conducting resinl of 20mm, covers on the graphite carbon plate, processes the recovery carrier.
Then, pack on the carrier platform of particulate retracting device, connect particulate retracting device, spinner-type flowmeter and vacuum pump with vacuum hose with reclaiming carrier; The escape pipe of vacuum pump is put into waste gas and is reclaimed solution.Open new vacuum bag glove, its air intake opening connects welding bottle, charges into oxygen, put instruments such as the polybag that wipe samples is housed, tweezers, scissors into from the gas outlet of vacuum bag glove, the sealing gas outlet, treat the bag glove inflation after, stop to inflate.The wipe samples of clip 1/3～1/2 is used for reclaiming in the vacuum bag glove, puts back to remaining sample in the polybag with tweezers.
At last, open the gas outlet of vacuum bag glove, send into the particulate retracting device, open the gas switch of welding bottle simultaneously, charge into oxygen, make the aeration quantity in the vacuum bag glove keep certain, help the reclaimer operation in the vacuum bag glove like this.With the fixing wipe samples of tweezers, open vacuum pump simultaneously, control the speed of exhaust through regulating spinner-type flowmeter; Be placed on the front port of particulate retracting device on the wipe samples, the retracting device that moves around reclaims particulate.Recovery time is relevant with the sample size on the cleaning wiping cloth, and present embodiment carries out 4～10 minutes recovery, preferably adopts 5 minutes, and it is fastest to guarantee that like this recovery maximum can reclaim again.
This method can be effectively be recovered to the particulate on the cleaning wiping cloth and reclaims on the carrier, can improve the particulate recovery and the dispersiveness of particulate on the cleaning wiping cloth again, for SIMS has created condition to the isotope ratio measurement of elements such as the uranium of single particulate, plutonium.
Claims (3)
1. one kind is the particle recovering method of the wipe samples of carrier with the conducting resinl, it is characterized in that, this method at first is placed on the graphite carbon plate and cleans 1～2 minute in the absolute ethyl alcohol, takes out and treats then conducting resinl to be covered its drying on the graphite carbon plate; Then the graphitic carbon sheet is packed into and carry out particulate in the retracting device and reclaim, reclaim particulate and in the vacuum bag glove, carry out, and vacuum bag glove air intake opening charges into oxygen continuously, it is certain that the aeration quantity in the vacuum bag glove keeps, and removal process was carried out 4～10 minutes;
Described graphite carbon plate cleans to the graphite carbon plate is positioned in the container that absolute ethyl alcohol is housed in absolute ethyl alcohol, in ultrasonic oscillator, cleans.
2. according to claim 1 a kind of be the particle recovering method of the wipe samples of carrier with the conducting resinl, it is characterized in that described drying is volatilized for the graphite carbon plate is placed on the filter paper.
3. according to claim 1 a kind of be the particle recovering method of the wipe samples of carrier with the conducting resinl, it is characterized in that described removal process was carried out 5 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106206955A CN102095620B (en) | 2010-12-23 | 2010-12-23 | Method for recovering particles of wiping sample by using conductive adhesive as carrier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010106206955A CN102095620B (en) | 2010-12-23 | 2010-12-23 | Method for recovering particles of wiping sample by using conductive adhesive as carrier |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102095620A CN102095620A (en) | 2011-06-15 |
| CN102095620B true CN102095620B (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010106206955A Active CN102095620B (en) | 2010-12-23 | 2010-12-23 | Method for recovering particles of wiping sample by using conductive adhesive as carrier |
Country Status (1)
| Country | Link |
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| CN (1) | CN102095620B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768221B (en) * | 2012-08-10 | 2016-01-20 | 中国原子能科学研究院 | The measuring method of particle recovery rate |
| CN103901095B (en) * | 2014-03-25 | 2017-01-04 | 中国原子能科学研究院 | A kind of assay method of individual particle Measurement of Uranium Isotope Ratio |
| CN111257071B (en) * | 2020-01-17 | 2022-10-21 | 胜科纳米(苏州)股份有限公司 | Preparation method of sample for dynamic secondary ion mass spectrometer and prepared sample |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655422A (en) * | 2009-09-02 | 2010-02-24 | 中国原子能科学研究院 | Device for recovering particles by vacuum collision method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007333456A (en) * | 2006-06-13 | 2007-12-27 | Japan Atomic Energy Agency | Method for detecting particle-containing fissionable material using fission track method |
| JP2008026056A (en) * | 2006-07-19 | 2008-02-07 | Japan Atomic Energy Agency | Detection method according to enrichment of particles containing fission materials |
-
2010
- 2010-12-23 CN CN2010106206955A patent/CN102095620B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655422A (en) * | 2009-09-02 | 2010-02-24 | 中国原子能科学研究院 | Device for recovering particles by vacuum collision method |
Non-Patent Citations (4)
| Title |
|---|
| Fumitaka ESAKA et al..Efficient isotope ratio analysis of uranium particles in swipe samples by total-reflection X-ray fluorescence spectrometry and secondary ion mass spectrometry.《Journal of Nuclear Science and Technology》.2004,第41卷(第11期),1027-1032. * |
| JP特开2007-333456A 2007.12.27 |
| JP特开2008-26056A 2008.02.07 |
| 王同兴等.抽气碰撞法回收擦拭样品上铀微粒的方法研究.《中国原子能科学研究院年报 2009》.2010,388. * |
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| Publication number | Publication date |
|---|---|
| CN102095620A (en) | 2011-06-15 |
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