WO2001015191A2 - Dispositif de detection et d'analyse par ablation et transfert vers une trappe ionique d'un spectrometre et procede associe - Google Patents
Dispositif de detection et d'analyse par ablation et transfert vers une trappe ionique d'un spectrometre et procede associe Download PDFInfo
- Publication number
- WO2001015191A2 WO2001015191A2 PCT/FR2000/002382 FR0002382W WO0115191A2 WO 2001015191 A2 WO2001015191 A2 WO 2001015191A2 FR 0002382 W FR0002382 W FR 0002382W WO 0115191 A2 WO0115191 A2 WO 0115191A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ablation
- enclosure
- laser
- molecules
- sample
- 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.)
- Ceased
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/02—Details
- H01J49/04—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components
- H01J49/0459—Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locks; Arrangements for external adjustment of electron- or ion-optical components for solid samples
- H01J49/0463—Desorption by laser or particle beam, followed by ionisation as a separate step
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/42—Stability-of-path spectrometers, e.g. monopole, quadrupole, multipole, farvitrons
- H01J49/4205—Device types
- H01J49/424—Three-dimensional ion traps, i.e. comprising end-cap and ring electrodes
Definitions
- the present invention relates to the field of chemical analysis and relates to a device for detecting and analyzing atoms and / or molecules by laser ablation carried out on a sample and transfer of neutral atoms and / or molecules emitted by said ablation to an ion trap of a spectrometer. It also relates to a method of detection and analysis of atoms and / or molecules implementing said device as well as possible uses of the method according to the present invention.
- the mass spectrometry technique currently comprises several ionization methods other than ionization by electron bombardment in the gas phase and several ion selection devices other than deflection by a magnetic field (quadrupoles, ion traps, cyclotron resonance ions, flight time ).
- ionization methods other than ionization by electron bombardment in the gas phase
- ion selection devices other than deflection by a magnetic field
- devices are already known, for example, comprising ion traps and using a laser as an ion source.
- These methods are mainly divided into two groups, namely the so-called “internal ion introduction” methods and the so-called “external ion introduction” methods.
- a sample is placed or nebulized
- an external ionization laser is used by which the ions are produced. These are then extracted by lenses (also external) before entering the interior of the ionic analysis and / or detection hatch.
- none of these techniques provides for a separate laser ablation chamber which can use several types of laser and produces neutral species which are transferred by a gas stream and / or by the vacuum from the spectrometer to the ion trap where said species are ionized and then analyzed.
- the present invention aims in particular to overcome these drawbacks. To this end, it relates to a device for detecting and analyzing atoms and / or molecules by laser ablation carried out on a sample and comprising an ion trap of a spectrometer, characterized in that it comprises at least : - a laser source,
- an ablation chamber containing the sample to be analyzed and exposed to said laser source external to said chamber in order to produce neutral atoms and / or molecules in said ablation chamber
- the subject of the invention is also a method of detecting and analyzing atoms and / or molecules by means of the device according to one or more of the preceding characteristics, characterized in that it comprises at least the following steps:
- FIG. 1 represents , schematically, the analysis device of the present invention
- Figure 2 shows, in more detail, the analysis device of Figure 1
- Figure 3 shows a side elevational view of the support frame of the analysis device according to the present invention
- Figure 4 shows a top view of the frame of Figure 3
- Figure 5 shows a front view of the frame shown in Figures 3 and 4
- FIG. 6 represents a preferred embodiment of the section, in particular of the support rail of the frame shown in FIGS. 3, 4 and
- Figure 7 shows a perspective view in section of a first embodiment of the ablation enclosure according to the present invention
- 8 shows a schematic sectional view of a variant of the first embodiment of the ablation chamber of Figure 7,
- Figure 9 shows a perspective view in section of a second embodiment of the ablation enclosure according to the present invention.
- the device 1 for detecting and analyzing atoms and / or molecules by laser ablation carried out on a sample 6 and comprising an ion trap 8 of a spectrometer (not shown), is characterized in that '' it includes at least:
- FIGS. 1 and 2 Such a device 1 provided with such an enclosure 4 is shown in FIGS. 1 and 2.
- this is advantageously a laser source with wavelength between 193 nm and 1064 nm and preferably equal to 193 nm, 212 nm, 248 nm (excimer laser), 266 nm, 355 nm, 532 nm or 1064 nm (Nd-YAG laser).
- the laser source 2 can also be a dye laser source with an adjustable wavelength between approximately 220 nm and 800 nm with an adjustment precision of approximately 0.1 nm.
- the device 1 according to the present invention is provided with an optical bench making it possible to focus or defocus each type of laser beam 2 'arriving on the sample 6.
- the optical assembly 3 for aligning and focusing the emitted laser beam 2 ′ comprises at least:
- the blade 10 and said lenses 11 being mounted integrally on a support frame 12, movable in a horizontal XY plane parallel to the horizontal plane supporting the 4, 4 'laser ablation chamber.
- the support frame 12 is mounted on a rail 13.
- the optical assembly 3 comprising the alignment optics and the focusing lens or lenses can be motorized so as to be able to displace the impact of the laser beam 2 ′ by a distance of the order of 25 mm with an accuracy to l / 100 e of mm on the surface of the sample 6 to be analyzed.
- the irradiance I of the laser beam 2 ' is given by:
- It can be adjusted with precision, either by modifying the distance between the diverging lens and the converging lens of the collimation telescope 9 known per se, which varies the photonic density, or by modifying the position of the lens (s) 11 according to the 'Z axis, that is to say by modifying the distance d between the lens (s) 11 and the upper edge of the ablation chamber 4, 4', or finally by varying the energy per laser pulse .
- the blade 10 dichroic. optionally orientable, and the focusing lens or lenses 11 are mounted integrally on a support frame 12, movable in a horizontal X-Y plane.
- the dichroic strip 10 can, for example, be chosen to be reflective for UV beams and semi-transparent for the visible.
- Said blade 10 reflects the laser beam 2 ′ at 90 ° and transmits the image of the samples 6 to a display means 14.
- the frame 12 is mainly constituted by a vertical rail 23, one particularly advantageous embodiment of which is to provide a section of the rail 23 in the form of an "X", as shown in enlarged form in FIG. 6.
- the branches of the “X” of the section of the rail 23 are bevelled at right angles at their ends, which makes it possible to flatten the flat parts of the supports 24, 25 and 26 described above. after on those of the rail 23 and block this contact by means of the screws whose ends are pressed against the “X” -shaped branches of said rail 23.
- the rail 23 receives on one of its faces an upper support 24 for the dichroic blade 10 as well as a lower support 26 for the focusing lens or lenses 11, l 'other face of said rail 23 receiving a bracket 25 connected to the plate 21 of movement XY via a part 22 in the form of "L".
- the upper support 24 for the dichroic blade 10 is mounted on the rail 23 by means of an upper fixing 24 '.
- Said upper support 24 further comprises conventional means for adjusting the orientation and blocking of the dichroic blade 10 on said upper support 24.
- the assembly formed by the blade 10 and the lens or lenses 11 is movable in the XY plane and the lens doublet 11 is movable on the Z axis making it possible to adjust the focal point on the sample 6 if necessary the wavelength of the 2 ′ laser beam.
- FIG 5 there is shown a frame 12 for which the blade is positioned at a height H while the lens or lenses 11 are located at a height h relative to the horizontal base surface on which the enclosure rests. 4, 4 'ablation.
- the distance h can be modified as desired, either manually or motorized way, possibly by remote control (remote control, computer or console ).
- the lower support 26 for the lens or lenses 11 is mounted on the rail 23 by means of a lower fixing 26 '.
- Said lower support 26 comprises, like the upper support 24, an intermediate piece receiving the lens (s) 11 as well as a conventional means for locking and adjusting the lens (s) 11.
- the lower support 26 also comprises a means 27 for vertical translation, parallel to the rail 23 of the lower support 26 and therefore of the lens or lenses 11.
- Such a means 27 can, for example, be in the form of a precision rack fitted with a screw micrometric 27, possibly motorized.
- the rail 23 and the optical instruments attached to it can also be moved in a horizontal X-Y plane, parallel to the support plane of the ablation chamber 4, 4 '.
- the rail 23 is fixed by means of the part 22 in the form of "L” to a plate 21 of X-Y movement.
- this plate 21 is itself mounted on a vertical rail 20 similar to rail 23.
- the “X” structure of the rails 20 and 23 also guarantees perfect stability of the plate 21 of displacement XY as well as optical elements mounted on the rail 23.
- Displacements in the X-Y plane are obtained by precision and motorizable mechanisms or micro-mechanisms.
- the plate 21 of FIG. 3 is moved using one or more motors M, M 'integrated in the plate 21.
- the lens or lenses 11 are themselves movable, by movable means 27 on the frame 12 in vertical translation along the axis Z perpendicular to the plane X-Y.
- the point of impact of the laser beam 2 ′ is directed onto the sample 6 to be analyzed placed in the ablation chamber 4, 4 ′ and / or the irradiance of the laser 2 is controlled by focusing.
- the frame 12 also comprises a means 14 for viewing the blade 10, the lens or lenses 11 and the sample 6 to be analyzed, for example a CCD camera 14 provided with an additional lens 15 with or without zoom.
- the lens 15 has the function of allowing the focusing of the image of the sample 6 without modifying the position of the lens or lenses 11. Said zoom will present, for example a magnification of 25x.
- the display means 14 can also be fixed to the aforementioned rail 23 by a support similar to the supports 24, 25, 26 mentioned above.
- the CCD camera 14 can also be connected to a monitor from which the manipulator can carry out the various operations, checks and studies necessary.
- a connection to a workstation will eventually allow the information obtained to be processed and / or saved by storing the measurement data in a memory and / or by printing the photographs or information obtained. It is also possible to control the position, view and acquire the corresponding data on the same workstation.
- FIG. 7 illustrates, by way of non-limiting examples, three particularly advantageous embodiments of the enclosure 4, 4 ′ of laser ablation in which the sample 6 is placed and irradiated by the laser beam 2 'so that the latter emits neutral atoms and / or molecules which can be ionized in the ion trap 8 located downstream of said enclosure 4, 4'.
- FIG. 7 illustrates, by way of non-limiting examples, three particularly advantageous embodiments of the enclosure 4, 4 ′ of laser ablation in which the sample 6 is placed and irradiated by the laser beam 2 'so that the latter emits neutral atoms and / or molecules which can be ionized in the ion trap 8 located downstream of said enclosure 4, 4'.
- the enclosure 4 for laser ablation is produced in the form of a well 30, preferably cylindrical, at the bottom 31 of which is housed a removable sample holder 5 supporting the sample 6 to be analyzed, the well 30 being closed in its upper part by a sealing means 32 and said well 30 being provided on its side walls with orifices 35, 35 ′ for the arrival and the exit of a carrier gas carrying the neutral atoms and / or molecules formed and / or a reactive gas.
- the closing means 32 is constituted by a window 33 made of quartz or sapphire on which an O-ring 34 rests, sealing it with the clamping ring 36 'made of copper screwed into the section of the upper part of the well 30.
- the O-rings 34, 34 ′ known under the name “VITON” are particularly suitable for producing the sealed closure means 32.
- FIG. 8 shows a sectional view of an ablation enclosure 4 according to a variant of that shown diagrammatically in FIG. 7.
- the orifices 35, 35 ′ open at two different levels on the internal walls of the well 30, orifice 35 of arrival being located at a lower level, closer to the sample 6 than the outlet orifice 35, so that the orifice 35 can better absorb all the neutral species emitted during laser ablation and which would be repelled towards the window 33 of the closing means 32.
- the sections of the orifices 35, 35 ′ can advantageously be enlarged or reduced as one moves away from the center of the well 30, for example, thanks to the suitable conical thread connections R and R 'shown in simplified form in Figure 8.
- the closing means 32 also consists of a clamping ring 36 'screwed into the upper part of the well 30 and which rests, by means of an O-ring 34 on the window 33, for example quartz, which in turn is supported by the intermediary of another O-ring 34 ′ on an annular rim where the section of the well 30 illustrated narrows.
- the sample holder 5 maintains said sample 6 at a certain distance from the bottom 31 of the enclosure 4 in the gas stream. This removable sample holder 5 allows, by keeping the sample 6 near the flow of the carrier and / or reactive gas, to obtain the intimate contact necessary to be able to make a correct quantitative measurement of the sample 6 to be analyzed.
- Figure 9 shows a second embodiment of the ablation enclosure 4 'according to the present invention.
- the 4 'laser ablation chamber is produced in the form of a part 36 provided with a well 30', preferably cylindrical, with an open bottom 37 pressing on the sample 6 to be analyzed by means of 'at least two concentric annular grooves 38, 38' provided on their peripheries with respective circular seals 39, 39 ', the annular groove 38 closest to the center of the well 30' forming with its seal 39 'and the surface of the sample 6 a central circular cavity 40 or central circular zone 41 for analyzing the sample 6, the well 30 'being closed in its upper part by a sealing means 32' and said well 30 'being provided, on its side walls , 35 "orifices for the inlet and outlet of a carrier gas entraining the atoms and / or molecules formed and / or of a reactive gas.
- the enclosure laser ablation 4 ' preferably comprises three grooves 38, 38 ', 38 "concentric circular annulars defining with their seals 39, 39 ', 39 ", the body of the part 36 and the surface of the sample 6, two chambers 42, 43 and a cavity 40 sealed due to said seals 39, 39' and 39", the two chambers 42 , 43 outer annulars being swept and saturated with an inert gas and the cavity 40 being subjected to a vacuum of between 10 "1 Pa and 10 " 3 Pa.
- the inert gas can be pumped by a primary pump at high flow rate, the cavity 40 may be subjected to turbomolecular pumping.
- the closure means 32, 32 ′ of the ablation chambers 4, 4 ′ is produced in the form of a window 33, 33 ′, itself made of a material transparent to the wavelength (s) of the laser beam 2 'emitted and sealed with respect to the walls of said enclosure 4, 4' thanks to at least one compression seal, for example one or more O-rings 34, 34 '.
- the closing means 32, 32 ′ further comprises a clamping ring 36 ′, for example made of copper, screwed into the side walls of said well 30, 30 ′ of said enclosure 4, 4 ′, by example, on an O-ring 34, 34 '(upper) sealing said window 33, 33'.
- a clamping ring 36 ′ for example made of copper, screwed into the side walls of said well 30, 30 ′ of said enclosure 4, 4 ′, by example, on an O-ring 34, 34 '(upper) sealing said window 33, 33'.
- the transfer line 7 connects the ablation enclosure 4, 4 'to the detector and in particular makes it possible to isolate the central analysis area 41 of said enclosure 4, 4' from the detector.
- the aforementioned line transfers the neutral atoms and / or molecules emitted to the ion trap for detection or analysis and comprises a junction produced in the form of a three-way valve 18 with three positions, a first position serving for the transfer of the gas or mixture of gases coming from the enclosure 4, 4 'for ablation towards the ion trap 8, a second position used for the introduction, at said valve 18, of a calibration gas intended for the spectrometer and a third position making it possible to isolate said spectrometer when the enclosure 4, 4 'for ablation is open, for example, for a change of the sample 6.
- the transfer line 7 consists of stainless steel tubes covered with deactivated silica on their inner faces.
- Such tubes are, for information only, marketed under the name "InertSteel” (registered trademark) and are made of fused silica "INOX".
- INOX fused silica
- the device according to the present invention is also characterized in that at least one heating means 45, 46 is provided for heating the enclosure 4, 4 ′ of laser ablation, and / or of the transfer line 7 and / or of the three-way valve 18, for example produced in the form of a heating cord enveloping the elements to be heated.
- Said enclosure 4, 4 ' can thus be heated to a temperature between 55 ° C and 350 ° C, for example, by means of a heating cord (not shown) enveloping said enclosure 4, 4'.
- a heating cord for example a 3m (500 W) heating cord with its temperature controller as marketed under the name "HORST HT30" makes it possible to very quickly reach the temperatures necessary to avoid the recondensation of non-species volatile at room temperature.
- the ablation chamber 4, 4 ′, the transfer line 7 and the three-way valve 18 are all maintained at a temperature of between 100 ° C. and 350 ° C, preferably between 100 ° C and 250 ° C and even more preferably between 100 ° C and 150 ° C by said heating means 45, 46. This avoids condensation of the neutral compounds emitted in the whole circuit from the place of production to the place of analysis and / or detection of the neutral species emitted.
- the emission of pure volatile molecules can also imply an increase in the oven temperature prevailing in the ablation chamber 4, 4 ′, the transfer line 7 or at the junction of the three-way valve 18.
- the temperature may possibly be brought to 350 ° C. on condition that the materials used are adapted and in particular by using a three-way valve 18 of the type known under the name of "VALCO UWT".
- a carrier gas which is an inert gas, preferably a rare gas such as helium or argon.
- the ablation chamber 4 can accommodate samples of small sizes, that is to say up to about 8 mm in diameter. It is possible to analyze samples of large areas using a triple walled sampling enclosure 4 ′ as shown in FIG. 9.
- the laser ablation chambers 4, 4 " are swept by the carrier gas at a flow rate ranging from 0.1 ml / min to 0.5 ml / min in order to convey the stable neutral species created during the material interaction. laser towards the detector (not shown).
- the ablation chamber 4, 4 ′ is also connected to the pumping of the mass spectrometer, which generates a high vacuum within the analysis zone of said enclosure 4, 4 ′. (10 "3 Pa or less).
- the chambers 4, 4 " according to the present invention preferably have a minimum dead volume allowing a quick and easy change of the sample 6 in less than 15 minutes.
- the calibration gas is per fluorine oterbuty 1 ammonium (PF TB A).
- the device according to the present invention is also characterized in that upstream of the enclosure 4, 4 " ablation, there is provided a carrier gas supply comprising one or more valves 16, 17 micrometric.
- At least one of the valves 16, 17 upstream of the ablation enclosure 4, 4 ' is used to introduce a reactive gas into the pipe leading to said enclosure 4, 4' of laser ablation.
- This reactive gas can react with the laser plasma and induce new neutral species which will be analyzed according to the procedures described.
- the reactive gas can be the same as that used for chemical ionization within the ion trap.
- the different combinations between the ionization gas and the reactive gas are given in the table below.
- the reactive gas can therefore be chosen from carbon tetrafluoride or tetrachloride, tetramethylammonium hydroxide, steam water, acetonitrile gas or ammonia depending on the ionization gas used, in accordance with the table above.
- the subject of the invention is also a method of detecting and analyzing atoms and or molecules by means of the device 1 according to the present invention, characterized in that it comprises at least the following steps:
- the ionization, in said ion trap 8, of the neutral atoms and or molecules resulting from the ablation transferred from the enclosure 4, 4 " of laser ablation to the center of the ion trap 8 is effected by electronic impact, and / or by chemical ionization and / or by selective chemical ionization.
- Electronic impact ionization consists of ionizing atoms and / or molecules when they capture an electron emitted by filaments.
- the energy provided by electrons is important, it causes the molecules fra g mentation.
- neutral species capture a proton during collisions with the reactive ion (s) themselves produced by electron bombardment, which increases their stability and limits the fragments linked to electronic impact. It is also possible to isolate an ion of a precise mass and to carry out fragments thereof to observe the resulting ions called "son ions". This so-called MS / MS technique makes it possible to identify a compound without ambiguity.
- the field of application of the method according to the present invention is relatively wide and we will cite, by way of nonlimiting examples, some of the most interesting uses, such as the characterization of synthetic materials (monomers, polymers, copolymers or mixtures of these), characterization of natural materials, for example natural textile fibers, verification of the authenticity of written documents by analysis of the ink used, study of the effects of pollution on body surfaces , historic monuments, works of art, etc.
- the sensitivity of the technique is also greatly improved by the fact that the measurement on the sample 6 can be immediately carried out, without tedious preparation or adjustments, these being able, thanks to a possible motorization, to be programmed by computer.
- the different embodiments of the speakers 4, 4 ′ according to the present invention allows greater flexibility in the since the analysis can not only be carried out on small samples 6 but also on much larger samples 6.
- the use of a triple wall laser 4 'ablation chamber makes it possible to analyze non-breakable samples 6 of large surfaces.
- the enclosure 4 ′ is then affixed to a solid flat surface allowing the analysis of the sample 6 without deterioration of the surface.
- the device 1 of the present invention therefore provides a device 1 comprising an ablation chamber 4, 4 ′ laser allowing the study of different types of samples 6 under different laser conditions which can be coupled to any type of ion trap 8.
- This quantitative determination technique is easy and quick to implement, perfectly reproducible and provides extremely precise results with a very good detection limit.
- This technique makes it possible to detect, with great sensitivity, the neutral molecules which are mainly produced during laser-matter interaction (about one ion per 100,000 neutral molecules) after ionization within an ion trap 8, either by electronic impact , either by chemical ionization and / or selective ionization without disturbing modifications.
- this determination can easily be automated and makes it possible to provide, in particular to the manufacturer, an efficient and inexpensive tool for advanced physico-chemical analysis.
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- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
- Electron Tubes For Measurement (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP00958746A EP1212779A2 (fr) | 1999-08-26 | 2000-08-25 | Dispositif de detection et d'analyse par ablation laser et transfert vers une trappe ionique d'un spectrometre et procede associe |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR99/10890 | 1999-08-26 | ||
| FR9910890A FR2797956B1 (fr) | 1999-08-26 | 1999-08-26 | Dispositif de detection et d'analyse par ablation laser et transfert vers une trappe ionique d'un spectrometre, procede mettant en oeuvre ce dispositif et utilisations particulieres du procede |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2001015191A2 true WO2001015191A2 (fr) | 2001-03-01 |
| WO2001015191A3 WO2001015191A3 (fr) | 2002-04-18 |
Family
ID=9549410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2000/002382 Ceased WO2001015191A2 (fr) | 1999-08-26 | 2000-08-25 | Dispositif de detection et d'analyse par ablation et transfert vers une trappe ionique d'un spectrometre et procede associe |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1212779A2 (fr) |
| FR (1) | FR2797956B1 (fr) |
| WO (1) | WO2001015191A2 (fr) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005010945A3 (fr) * | 2003-07-15 | 2006-01-05 | Control Systemation Inc | Procedes et systemes d'analyse des defaillances |
| USRE42193E1 (en) | 1999-05-10 | 2011-03-01 | Intersil Corporation | Laser decapsulation method |
| CN108414612A (zh) * | 2018-01-25 | 2018-08-17 | 中国科学院光电研究院 | 一种准分子激光器放电腔气体的检测方法及模块 |
| CN113421687A (zh) * | 2021-06-17 | 2021-09-21 | 南方科技大学 | 一种离子装载系统及方法 |
| CN114121592A (zh) * | 2021-10-28 | 2022-03-01 | 费勉仪器科技(南京)有限公司 | 真空光源 |
| CN115241039A (zh) * | 2022-07-20 | 2022-10-25 | 南京理工大学 | 一种集成瞬态光谱实时检测单元的激光烧蚀法制备多氮等离子体装置 |
| US20240162028A1 (en) * | 2017-07-18 | 2024-05-16 | Duke University | Package Comprising an Ion-Trap and Method of Fabrication |
| US12237162B2 (en) | 2017-07-18 | 2025-02-25 | Duke University | Small-volume UHV ion-trap package and method of forming |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2001274909A1 (en) | 2000-05-31 | 2001-12-11 | The John Hopkins University | Pulsed laser sampling for mass spectrometer system |
| WO2006089449A2 (fr) * | 2005-02-28 | 2006-08-31 | Eidgenössische Technische Hochschule Zürich | Dispositif et procede d'analyse et d'imagerie par spectrometrie de masse hautement localisees |
| US8879064B2 (en) * | 2011-12-23 | 2014-11-04 | Electro Scientific Industries, Inc. | Apparatus and method for transporting an aerosol |
| WO2014079802A2 (fr) * | 2012-11-20 | 2014-05-30 | Ventana Medical Systems, Inc. | Diagnostics tissulaires par spectrométrie de masse à plasma couplé par induction à une ablation laser |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2310950A (en) * | 1996-03-08 | 1997-09-10 | Bruker Franzen Analytik Gmbh | Method for the ionization of heavy molecules at atmospheric pressure |
-
1999
- 1999-08-26 FR FR9910890A patent/FR2797956B1/fr not_active Expired - Fee Related
-
2000
- 2000-08-25 WO PCT/FR2000/002382 patent/WO2001015191A2/fr not_active Ceased
- 2000-08-25 EP EP00958746A patent/EP1212779A2/fr not_active Withdrawn
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE42193E1 (en) | 1999-05-10 | 2011-03-01 | Intersil Corporation | Laser decapsulation method |
| USRE43980E1 (en) | 1999-05-10 | 2013-02-05 | Intersil Corporation | Laser decapsulation method |
| US7271012B2 (en) * | 2003-07-15 | 2007-09-18 | Control Systemation, Inc. | Failure analysis methods and systems |
| CN100418195C (zh) * | 2003-07-15 | 2008-09-10 | 控制系统化公司 | 故障分析方法及系统 |
| WO2005010945A3 (fr) * | 2003-07-15 | 2006-01-05 | Control Systemation Inc | Procedes et systemes d'analyse des defaillances |
| US20240162028A1 (en) * | 2017-07-18 | 2024-05-16 | Duke University | Package Comprising an Ion-Trap and Method of Fabrication |
| US12237162B2 (en) | 2017-07-18 | 2025-02-25 | Duke University | Small-volume UHV ion-trap package and method of forming |
| US12142473B2 (en) * | 2017-07-18 | 2024-11-12 | Duke University | Package comprising an ion-trap and method of fabrication |
| CN108414612A (zh) * | 2018-01-25 | 2018-08-17 | 中国科学院光电研究院 | 一种准分子激光器放电腔气体的检测方法及模块 |
| CN113421687A (zh) * | 2021-06-17 | 2021-09-21 | 南方科技大学 | 一种离子装载系统及方法 |
| CN113421687B (zh) * | 2021-06-17 | 2023-08-29 | 南方科技大学 | 一种离子装载系统及方法 |
| CN114121592A (zh) * | 2021-10-28 | 2022-03-01 | 费勉仪器科技(南京)有限公司 | 真空光源 |
| CN115241039A (zh) * | 2022-07-20 | 2022-10-25 | 南京理工大学 | 一种集成瞬态光谱实时检测单元的激光烧蚀法制备多氮等离子体装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1212779A2 (fr) | 2002-06-12 |
| FR2797956A1 (fr) | 2001-03-02 |
| WO2001015191A3 (fr) | 2002-04-18 |
| FR2797956B1 (fr) | 2001-11-30 |
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