CN104749018B - A kind of laser ablation signal removes mercury device online - Google Patents
A kind of laser ablation signal removes mercury device online Download PDFInfo
- Publication number
- CN104749018B CN104749018B CN201510179501.5A CN201510179501A CN104749018B CN 104749018 B CN104749018 B CN 104749018B CN 201510179501 A CN201510179501 A CN 201510179501A CN 104749018 B CN104749018 B CN 104749018B
- Authority
- CN
- China
- Prior art keywords
- mercury
- corrugated plating
- millimeters
- pipe
- laser ablation
- 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.)
- Active
Links
Landscapes
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Mercury device is removed online the invention provides a kind of laser ablation signal, at least mercury pipe is removed including columned stainless steel, remove the two ends respectively air inlet and gas outlet of mercury pipe, it is described to go in mercury pipe to catch mercury barrier flaps group at least provided with one group, described mercury barrier flaps group of catching is made up of corrugated plating stacked on top of one another, the corrugated plating is from top to bottom evenly distributed in mercury pipe, and corrugated plating is parallel with the axial line of mercury pipe is removed, and two sides of corrugated plating are fixed on the inwall of mercury pipe；It is described to go on the inwall of mercury pipe and the surface of corrugated plating to be provided with gold coating.The present apparatus not only can remove the background element mercury in work carrier gas, can also online remove the mercury in laser ablation signal, and go mercury effect remarkable, and mercury is removed from the sample aerosol of laser ablation completely almost.
Description
Technical field
Mercury device is removed online the invention provides a kind of laser ablation signal, belongs to laser ablation inductively coupled plasma
Light/mass spectral analysis field.
Background technology
Laser ablation inductively coupled plasma light/mass spectrum LA-ICP-MS technologies are the most successful and effective directly right
Solid sample enters one of technology of row element or isotope analysis.In the middle of numerous elements or isotope analysis, lead element is same
Position element analysis and Within Monominerals uranium lead determine the effect for year key being played in research fields such as environment, geology, material, archaeologies.At present,
Restriction obtains high accuracy lead isotope204Pb testing results are essentially from mercury isotope204The interference of Hg.Therefore, the back of the body of mercury is reduced
Scape is very urgent in mass spectral analysis.
In mass spectral analysis, the background of mercury is mostly derived from mercury impurities and mineral sample in instrument work carrier gas argon gas, helium
Product itself such as sulfide, zircon contain mercury.Glass, sulfide mineral, feldspar and some important secondary ore deposits are analyzed in LA-ICP-MS
When the uranium lead isotope of thing, such as zircon determines year, a very tiny common lead204Pb signal peaks can produce it is very big not
Degree of certainty.Therefore, except the interference of mercury impurities in work carrier gas argon gas to be eliminated, helium, LA-ICP-MS laser ablations are removed and is produced
The interference of mercury is also extremely important in year is determined in lead element isotope analysis and Within Monominerals uranium lead in raw sample aerosol.
For the interference of mercury impurities in work carrier gas argon gas, helium, can be subtracted by filtration carrier gas argon gas and helium
Few mercury.At present, frequently with method have gold-plated quartz sand for adsorbent method, charcoal filtering method etc..Can only be by work with these methods
The signal for making the mercury in carrier gas is reduced to about original 50%, what removal LA-ICP-MS laser ablations that can not be online were produced
Mercury in sample aerosol.
Laser Japanese scholars Hirata etc. has mainly invented a kind of charcoal filter with materials such as activated carbons, uses this volume
For 200 milliliters of charcoal filters with filtration carrier gas and can degrade the aerosol of sample, the signal of mercury is reduced to original
30%, but excessively larger charcoal filter volume is (for example：400 milliliters) cause to reduce the signal intensity of lead and uranium (about
40%), it is impossible to meet the accurate measure of low lead content mercury Background Samples high.
The content of the invention
Mercury device is removed online the invention provides a kind of laser ablation signal, solves the deficiency in background technology, this dress
The background element mercury that not only can remove in work carrier gas is put, the mercury in laser ablation signal can also be online removed, and go mercury to imitate
Fruit is remarkable, and mercury is removed from the sample aerosol of laser ablation completely almost.
Realize technical scheme that above-mentioned purpose of the present invention used for：
A kind of laser ablation signal removes mercury device online, at least removes mercury pipe including columned stainless steel, goes the two of mercury pipe
End is respectively air inlet and gas outlet, and described to go in mercury pipe to catch mercury barrier flaps group at least provided with one group, described catches mercury resistance
Partition group is made up of at least 7 corrugated platings stacked on top of one another, and the corrugated plating is from top to bottom evenly distributed in mercury pipe, ripple
Card is parallel with the axial line of mercury pipe is removed, and two sides of corrugated plating are fixed on the inwall of mercury pipe；Described removes mercury pipe
Inwall and corrugated plating surface on be provided with gold coating.
The thickness of described gold coating is 5~20 microns.Preferably, the thickness of described gold coating is 10 micro-
Rice.
The thickness of described corrugated plating is 0.1~0.2 millimeter, and the length of corrugated plating is 20~40 millimeters, the ripple of corrugated plating
A height of 3~5 millimeters, the distance of two adjacent crests is 6~8 millimeters in corrugated plating.Preferably, the thickness of described corrugated plating
Be 0.15 millimeter, the length of corrugated plating is 30 millimeters, the wave height of corrugated plating is 4 millimeters, in corrugated plating two adjacent crests away from
From being 7 millimeters.
The ripple inclination angle of described corrugated plating is 45 °.
The described length for removing mercury pipe is 300 millimeters, a diameter of 20 millimeters.It is described to go in mercury pipe at heart position wherein
It is provided with one group and catches mercury barrier flaps group, described mercury barrier flaps group of catching is made up of seven corrugated platings, and the width of corrugated plating is by up to
Under be followed successively by 9 millimeters, 14 millimeters, 18 millimeters, 20 millimeters, 18 millimeters, 14 millimeters, 9 millimeters.
The direction of ripple is with to remove the axial line of mercury pipe perpendicular on described corrugated plating.
Compared with prior art, the present invention has advantages below：Laser ablation signal of the invention removes mercury device not online
The background element mercury in work carrier gas is only can remove, the mercury in laser ablation signal can also be online removed.By apparatus of the present invention
With on LA-ICP-MS, the background signal value of the mercury in the carrier gas that works can be will be so small as to 0.5 millivolt by original 6 millivolts.It is heavier
Want, can be by mercury in international sulfide standard specimen MASS-1202Hg signal intensities are reduced to 0.7 millivolt by 256 millivolts, and this is abundant
Show, mercury is almost removed completely from the aerosol of laser ablation.The laser ablation signal go online mercury device it is remarkable remove mercury
Effect, can be used to accurately determine lead content relatively low mercury content sample high206Pb/204Pb isotopic ratios.The mercury back of the body high is captured
The high accuracy lead isotope of the low lead content sample of scape determines problem.
Brief description of the drawings
Fig. 1 goes the overall structure diagram of mercury device for the laser ablation signal for providing of the invention online；
Fig. 2 is the A-A of Fig. 1 to sectional view；
Fig. 3 is removal efficiency of mercury figure of the invention；
In figure：1- removes mercury pipe, 2- air inlets, 3- gas outlets, 4- corrugated platings.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment does detailed specific description to the present invention, but protection scope of the present invention
It is not limited to following examples.
Laser ablation signal provided by the present invention goes the structure of mercury device as depicted in figs. 1 and 2 online, including cylindric
Stainless steel remove mercury pipe 1, the described length for removing mercury pipe 1 is 300 millimeters, a diameter of 20 millimeters.The two ends of mercury pipe are gone to be respectively
Air inlet 2 and gas outlet 3, it is described go in mercury pipe 1 to be provided with one group catch mercury barrier flaps group, described catches mercury barrier flaps group by extremely
Few 7 corrugated platings 4 stacked on top of one another are constituted, and the corrugated plating 4 is from top to bottom evenly distributed in mercury pipe, corrugated plating with go
The axial line of mercury pipe is parallel, and two sides of corrugated plating are fixed on the inwall of mercury pipe；Ripple on described corrugated plating
Direction is with to remove the axial line of mercury pipe perpendicular.
Mercury barrier flaps group of catching described in the present embodiment is made up of seven corrugated platings, and the width of corrugated plating is from top to bottom successively
It is 9 millimeters, 14 millimeters, 18 millimeters, 20 millimeters, 18 millimeters, 14 millimeters, 9 millimeters.The thickness of described corrugated plating is 0.15 milli
Rice, the length of corrugated plating is 30 millimeters, and the wave height of corrugated plating is 4 millimeters, and the distance of two adjacent crests is 7 millis in corrugated plating
Rice.The ripple inclination angle of described corrugated plating is 45 °.
It is described to go to be provided with gold coating on the inwall of mercury pipe and the surface of corrugated plating, described gold coating
Thickness is 10 microns.
In the device busy that the present invention is provided, the mercury atom entrance in the aerosol that carrier gas or laser ablation are produced is gone
After mercury pipe, repeatedly collided with the ultrapure gold coating of corrugated plating waved surface and pipe internal surface and react and generate amalgam and fixed
Enrichment capture is removed in mercury pipe is removed so as to the mercury in work carrier gas and sample aerosol be captured.
The present invention is passed through the position before argon gas and is passed through in being arranged on laser ablation inductively coupled plasma-mass spectrometry instrument
Position after argon gas.The position before being passed through argon gas is placed on, work carrier gas helium can be removed and the mercury in aerosol is degraded；Put
The position after being passed through argon gas is put, can remove remove simultaneously helium, argon gas and degrade the mercury in aerosol.
Fig. 3 (a, b) be by the present invention be arranged on be passed through the position before argon gas when, using forward and backward LA-ICP-MS of the invention with
When 8 hertz of frequency degrades international sulfide standard specimen MASS-1202Hg、204Pb and208Pb elemental signals intensity contrasts, can from Fig. 3
To find out, the mercury in the carrier gas that worked after the present apparatus is used202The background signal intensities value of Hg is reduced to 0.5 milli by original 6 millivolts
Volt；Mercury in MASS-1202The signal strength values of Hg will be so small as to 0.7 millivolt by original 256 millivolts, reduce 366 times202Hg believes
Number.This result shows that mercury is almost removed completely from sample aerosol.
Claims (9)
1. a kind of laser ablation signal removes mercury device online, it is characterised in that：Mercury pipe at least is removed including columned stainless steel, is gone
The two ends of mercury pipe are respectively air inlet and gas outlet, described to go in mercury pipe to catch mercury barrier flaps group at least provided with one group, described
Mercury barrier flaps group of catching be made up of at least 7 corrugated platings stacked on top of one another, the corrugated plating is from top to bottom evenly distributed in
In mercury pipe, corrugated plating is parallel with the axial line of mercury pipe is removed, and two sides of corrugated plating are fixed on the inwall of mercury pipe；It is described
Go on the inwall of mercury pipe and the surface of corrugated plating be provided with gold coating.
2. laser ablation signal according to claim 1 removes mercury device online, it is characterised in that：Described gold coating
Thickness is 5~20 microns.
3. laser ablation signal according to claim 2 removes mercury device online, it is characterised in that：Described gold coating
Thickness is 10 microns.
4. laser ablation signal according to claim 1 removes mercury device online, it is characterised in that：The thickness of described corrugated plating
It is 0.1~0.2 millimeter to spend, and the length of corrugated plating is 20~40 millimeters, and the wave height of corrugated plating is 3~5 millimeters, adjacent in corrugated plating
Two crests distance be 6~8 millimeters.
5. laser ablation signal according to claim 4 removes mercury device online, it is characterised in that：The thickness of described corrugated plating
It is 0.15 millimeter to spend, and the length of corrugated plating is 30 millimeters, and the wave height of corrugated plating is 4 millimeters, two adjacent crests in corrugated plating
Distance is 7 millimeters.
6. laser ablation signal according to claim 1 removes mercury device online, it is characterised in that：The ripple of described corrugated plating
Line inclination angle is 45 °.
7. laser ablation signal according to claim 1 removes mercury device online, it is characterised in that：The described length for removing mercury pipe
It is 300 millimeters to spend, a diameter of 20 millimeters.
8. laser ablation signal according to claim 7 removes mercury device online, it is characterised in that：It is described go in mercury pipe
Its center position is provided with one group and catches mercury barrier flaps group, and described mercury barrier flaps group of catching is made up of seven corrugated platings, corrugated plating
Width be from top to bottom followed successively by 9 millimeters, 14 millimeters, 18 millimeters, 20 millimeters, 18 millimeters, 14 millimeters, 9 millimeters.
9. laser ablation signal according to claim 1 removes mercury device online, it is characterised in that：Described corrugated plating upper ripple
The direction of line is with to remove the axial line of mercury pipe perpendicular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179501.5A CN104749018B (en) | 2015-04-15 | 2015-04-15 | A kind of laser ablation signal removes mercury device online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510179501.5A CN104749018B (en) | 2015-04-15 | 2015-04-15 | A kind of laser ablation signal removes mercury device online |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104749018A CN104749018A (en) | 2015-07-01 |
| CN104749018B true CN104749018B (en) | 2017-05-31 |
Family
ID=53589032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510179501.5A Active CN104749018B (en) | 2015-04-15 | 2015-04-15 | A kind of laser ablation signal removes mercury device online |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104749018B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067415B (en) * | 2015-08-11 | 2018-05-15 | 袁洪林 | A kind of filter that can remove the mercury in high-purity gas or aerosol |
| CN107305168B (en) * | 2016-04-22 | 2020-05-22 | 中国石油化工股份有限公司 | Gaseous mercury catches mercury device |
| CN105954088B (en) * | 2016-07-15 | 2019-02-05 | 中国工程物理研究院材料研究所 | Laser ablation sample room |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016284A1 (en) * | 1991-03-18 | 1992-10-01 | Stiftelsen Centrum För Dentalteknik Och Biomaterial I Huddinge | Filter for the purification of gases |
| US5660795A (en) * | 1994-02-25 | 1997-08-26 | Tekran Inc. | Cartridge for collection of a sample by adsorption onto a solid surface |
| CN201765146U (en) * | 2010-06-24 | 2011-03-16 | 西北有色地质研究院 | Mercury enrichment device of mercury detector |
| CN202676520U (en) * | 2012-04-12 | 2013-01-16 | 中国科学院城市环境研究所 | Device for collecting different species of mercury in atmosphere |
-
2015
- 2015-04-15 CN CN201510179501.5A patent/CN104749018B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1992016284A1 (en) * | 1991-03-18 | 1992-10-01 | Stiftelsen Centrum För Dentalteknik Och Biomaterial I Huddinge | Filter for the purification of gases |
| US5660795A (en) * | 1994-02-25 | 1997-08-26 | Tekran Inc. | Cartridge for collection of a sample by adsorption onto a solid surface |
| CN201765146U (en) * | 2010-06-24 | 2011-03-16 | 西北有色地质研究院 | Mercury enrichment device of mercury detector |
| CN202676520U (en) * | 2012-04-12 | 2013-01-16 | 中国科学院城市环境研究所 | Device for collecting different species of mercury in atmosphere |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104749018A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104749018B (en) | A kind of laser ablation signal removes mercury device online | |
| Bulanova et al. | Trace elements in sulfide inclusions from Yakutian diamonds | |
| Saeseaw et al. | Geographic origin determination of emerald. | |
| KR102296894B1 (en) | Real-time microplastic analysis device | |
| US3504481A (en) | Air filtering system | |
| CN102500559B (en) | Device for grading particle sizes of nanometer particles on line | |
| US8828731B2 (en) | Method and system for analyzing concentrations of diverse mercury species present in a fluid medium | |
| US9084958B2 (en) | Collecting device for gases and aerosol, methods of making, and methods of use | |
| DE102010042993A1 (en) | Collector, device, method and program for measuring a collected quantity | |
| CN204536090U (en) | Laser ablation signal removes mercury device online | |
| US8252088B2 (en) | Particle concentrator | |
| WO2017024815A1 (en) | Filter capable of removing mercury in high purity gas or aerosol | |
| EP2533029A1 (en) | Method and device for analysing the exhaust gas of internal combustion engines and exhaust gas cooler for this device | |
| US9504946B2 (en) | Process and system for separating finely aerosolized elemental mercury from gaseous streams | |
| KR101660376B1 (en) | Chip for Preliminary Examination of Samples and Capture of Cells in the Samples | |
| Goossens | A method for dry extracting large volumes of fine particulate matter from bulk soil samples | |
| CN211385387U (en) | High-gradient magnetic separation experimental device | |
| KR20150012535A (en) | Carbon particle sampling filter pack and method for measuring carbon mass using the same | |
| CN106769695A (en) | Atmospheric particulates water solubility heavy metal Fast measurement system and method | |
| GB2347879A (en) | Aerosol sampling filter | |
| Cauda et al. | High-volume samplers for the assessment of respirable silica content in metal mine dust via direct-on-filter analysis | |
| CN108218091A (en) | Processing mechanism before plant effuent pond | |
| Demange et al. | Phosphine sampling and analysis using silver nitrate impregnated filters | |
| CN109724907A (en) | A kind of Performance Appraisal System and method of moisture filter element for filtration | |
| EP3191214B1 (en) | Process and system for separating finely aerosolized elemental mercury from gaseous streams |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |