EP3134723A1 - Systeme de mesure de la composition d'un liquide par spectroscopie sur plasma induit par laser - Google Patents
Systeme de mesure de la composition d'un liquide par spectroscopie sur plasma induit par laserInfo
- Publication number
- EP3134723A1 EP3134723A1 EP15718169.4A EP15718169A EP3134723A1 EP 3134723 A1 EP3134723 A1 EP 3134723A1 EP 15718169 A EP15718169 A EP 15718169A EP 3134723 A1 EP3134723 A1 EP 3134723A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- measuring
- measuring cell
- flow
- laser
- 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.)
- Withdrawn
Links
- 239000007788 liquid Substances 0.000 title claims abstract description 121
- 238000002536 laser-induced breakdown spectroscopy Methods 0.000 title claims abstract description 19
- 239000000203 mixture Substances 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims description 25
- 238000005070 sampling Methods 0.000 claims description 12
- 239000003209 petroleum derivative Substances 0.000 claims description 11
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 8
- 229910052717 sulfur Inorganic materials 0.000 claims description 8
- 239000011593 sulfur Substances 0.000 claims description 8
- 230000005484 gravity Effects 0.000 claims description 7
- 239000011261 inert gas Substances 0.000 claims description 6
- 239000010779 crude oil Substances 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 5
- 239000013307 optical fiber Substances 0.000 claims description 5
- 229910052720 vanadium Inorganic materials 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 claims description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 17
- 150000001875 compounds Chemical class 0.000 abstract description 3
- 239000007921 spray Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 29
- 230000003287 optical effect Effects 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000003570 air Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 238000004611 spectroscopical analysis Methods 0.000 description 4
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000007324 demetalation reaction Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- BUADUHVXMFJVLH-UHFFFAOYSA-N 7-chloro-3-imidazol-1-yl-2H-1,2,4-benzotriazin-1-ium 1-oxide Chemical compound N1[N+](=O)C2=CC(Cl)=CC=C2N=C1N1C=CN=C1 BUADUHVXMFJVLH-UHFFFAOYSA-N 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000013626 chemical specie Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000608 laser ablation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/71—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light thermally excited
- G01N21/718—Laser microanalysis, i.e. with formation of sample plasma
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
Definitions
- the present invention relates to the field of measurement of the composition of a liquid by Laser Induced Breakdown Spectroscopy (LIBS), in particular for the measurement of the elemental composition of a petroleum product, more specifically the metal composition (especially in vanadium, nickel) and sulfur of a petroleum product.
- LIBS Laser Induced Breakdown Spectroscopy
- Laser Induced Plasma Spectroscopy or LIBS is a physical analytical method used to quantitatively analyze the components of matter (solid, liquid or gas).
- LIBS Laser Induced Plasma Spectroscopy
- focusing of laser pulses of a few nanoseconds each and an energy of the order of a few tens of millijoules to a point of the material to be analyzed on the material is carried out. This focus raises the surface density of energy from this point to a very high level.
- the coherent photons of the laser sublimate the material into matter vapor, producing a micro-plasma. This microplasma is formed almost immediately, that is to say while the laser pulse is not complete. The end of the pulse completes vaporizing the particles propelled out of the material by laser ablation.
- the end of the laser pulse optically excites the atomic and ionic species of this plasma, which then emits radiation that an analyzer (especially a spectrometer in the UV / visible domain) captures and translates.
- an analyzer especially a spectrometer in the UV / visible domain
- This technology is generally used in the laboratory on solid or liquid samples.
- the patent application WO 201 1 120086 describes the classification of materials by LIBS analysis, the measurements can not be performed online in real time.
- the laboratory analysis does not allow to analyze in real time a liquid flowing continuously.
- the advantage of online monitoring is multiple, especially with the ability to adjust the operating conditions in real time while a laboratory analysis requires several minutes, or tens of minutes.
- the sensitivity of LIBS is also known as better on liquids whose surface is renewed, the principle of measurement in line is doubly advantageous because the measurement is faster and the proposed analysis system is more sensitive when the liquid is renewed under the laser.
- the patent application US 2002/0159059 describes a method and a system for a LIBS analysis of a liquid.
- the system is based on mounting a measuring cell in communication with a reservoir containing the liquid to be analyzed, a valve system between these two compartments to keep a constant level and a liquid flow in the measuring cell.
- this system is only valid for fluid fluids (low viscosity), and therefore this system is not suitable for a viscous liquid such as crude oil.
- this system requires the presence of a liquid reservoir, which generates a dead volume of liquid that attenuates the variations in the contents of the elements measured by the mixture and the stagnation of liquids in the tank, especially when the flow of liquid to analyze is restricted.
- this system uses an air blowing system to protect the optical elements of LIBS. This large flow of air does not allow a measurement of sulfur by spectroscopy since the oxygen of the blown air absorbs the wavelength of sulfur (less than 200 nm, that is to say in the ultraviolet).
- the present invention relates to a system for measuring the composition of a liquid by LIBS, in which the liquid flows in a measuring cell closed by a window.
- the cell comprises means for protecting the porthole against splashing liquid.
- the cell according to the invention makes it possible to analyze all types of liquid (viscous or non-viscous) online and is adapted to the measurement of various compounds contained in the liquid, in particular sulfur.
- the invention relates to a system for measuring the elemental composition of a liquid by laser-induced plasma spectroscopy, comprising a measuring cell in which said liquid flows.
- the measuring cell is closed by a window, and in that said measuring cell comprises means for protecting said porthole against projections of said liquid.
- said window protection means comprise means for scanning said measuring cell with a gas, such as an inert gas at low pressure.
- said protection means comprise a conical piece disposed above the flow of said liquid.
- said gas scans at least one face of said conical piece facing the flow of said liquid.
- said gas sweeps a face of said porthole.
- the base of said conical part faces said porthole and the open top of said conical part faces the flow of said liquid within said measuring cell.
- said measuring cell comprises a liquid flow channel inclined relative to the horizontal.
- said measuring cell comprises means for projecting said liquid in jet form and means for evacuating said liquid by gravity.
- said measuring system comprises a system for sampling and conveying said liquid to said measuring cell, a laser inducing a plasma on the surface of the liquid flow within said measuring cell, and a measuring spectrometer. wavelengths emitted by said plasma.
- an optical fiber conducts the light emitted by said plasma to said spectrometer.
- the invention relates to a use of the measuring system according to the invention for a petroleum product such as a crude oil.
- the composition of inorganic elements of said petroleum product is measured.
- the composition of nickel and / or vanadium and / or sulfur of said petroleum product is measured.
- FIG. 1 illustrates a measuring cell according to a first embodiment of the invention.
- FIG. 2 illustrates a measurement system according to the first embodiment of the invention.
- FIG. 3 illustrates the fluid circuit for a measurement system according to the first embodiment of the invention.
- FIG. 4 illustrates a measuring cell according to a second embodiment of the invention, the section plane being a plane comprising the axis of the liquid flow means.
- FIG. 5 illustrates a measurement cell according to the second embodiment of the invention, the section plane being a plane comprising the axis of the protective cone.
- the present invention relates to a system for measuring a liquid by Laser Induced Plasma Spectroscopy (LIBS).
- LIBS Laser Induced Plasma Spectroscopy
- a laser forms a plasma on the surface of the liquid, and the radiation emitted by the plasma is analyzed by spectroscopy.
- the analysis of the spectroscopy makes it possible to determine at least one component present in the liquid.
- the measuring system comprises a measuring cell in which the liquid to be analyzed flows. At the surface of the flowing liquid is formed the plasma induced by the laser.
- the measuring cell is closed by a window, which allows the passage of the laser beam and the light emitted by the plasma induced on the surface of the liquid, that is to say that the window is transparent to the wavelength of the laser and the emission of the elements of interest.
- a window is called an optical window, especially glass.
- the porthole is used to seal the measuring cell and can withstand high pressures.
- the porthole can be composed of two optical surfaces that retain their optical properties during measurements.
- the cell furthermore comprises means for protecting the porthole against projections of the liquid. These means of protection of the window can be made by mechanical parts, for example a lid, a deflector, a conical piece ... and / or by means of scanning the cell with a gas, for example nitrogen or helium.
- the window protection means comprise a conical piece disposed above the flow of the liquid and below the porthole.
- the conical part is "inverted", that is to say that the base of the cone faces the porthole and the top of the cone faces the flow of the liquid, the apex of the cone being open for the passage of the laser beam and collecting the light emitted by the plasma.
- the conical piece limits splashing and splashing liquid to reach the porthole.
- the protection means comprise means for scanning the cell with a gas (nitrogen or helium).
- a gas nitrogen or helium
- the scanning means of the cell inject an inert gas into the cell.
- This inert gas can be injected at low pressure. The injection of this gas or air allows to "blow" the drops of liquid, so that they do not reach the window and to clean the drops present on the different surfaces of the measuring cell.
- the scanning means blow towards the face of the conical part which faces the flow of the liquid and / or the sweeping means blow directly towards the inner face of the porthole.
- the measurement cell proposed according to this embodiment of the invention is based on a double compartment separated by a conical shape to protect the optical measurement of the projections related to the formation of the plasma.
- the cell comprises means for flowing the liquid by gravity, thus, the cell according to the invention does not require a reservoir to have a liquid flow.
- the liquid flow means by gravity are formed by a channel inclined relative to the horizontal, which allows a flow of the liquid irrespective of the viscosity thereof.
- the angle of inclination of the channel may be between 15 and 60 ° and can be modified to generate a liquid film sufficient for the LIBS analysis, this angle is preferably about 45 °.
- the flow of liquid in the channel makes it possible to maintain a suitable liquid level for laser sampling while renewing the surface of the liquid to be analyzed.
- the liquid flow means form a liquid jet, in particular by means of a nozzle. This jet of liquid is sheathed by a gas produced by a double nozzle, having the liquid in the center and the gas in the periphery. At the level of the jet is generated the plasma, the liquid being evacuated by gravity.
- the proposed measuring cell is composed of materials that conduct the temperature and allow measurement in temperature ( ⁇ 1 10 ° C) facilitating the flow of viscous liquids.
- FIG. 1 illustrates a measuring cell according to a first embodiment of the invention.
- the measuring cell 1 has substantially a cylindrical shape.
- the measuring cell 1 is composed in particular of a window 2, a cone of protection or conical part 3 and a channel 4 in which the liquid flows.
- the liquid is brought by a system A to the measuring cell 1, it flows continuously in the channel 4 located in the measuring cell 1.
- the constant flow, the viscosity and the inclination angle of the flow device lead to the maintenance of a liquid level adapted to the "shot" of the laser.
- the fluid circulates continuously, unlike point sampling.
- the window 2 allows the passage of the laser beam which excites the sample and which induces the analysis plasma; it also allows the multi-wavelength passage of the light emitted by the plasma, thus allowing the analysis of the species contained in the sample.
- the porthole 2 makes the cell waterproof and withstands high pressures. In fact, the window 2 makes it possible to confine the volume B of the outside of the cell which is in the ambient air.
- the porthole 2 is composed of two surfaces that retain their optical properties during measurements; otherwise, the quality of the measurements degrades over time until the measurement is made impossible (blocked spectral information). It is to protect this porthole that the inverted cone system 3 and the gas flow (not shown) are used.
- the protection cone 3 combined with the gas circuit, makes it possible to protect the window 2 from projections of product caused by the plasma and to collect the light emitted by the laser.
- the volume B is maintained at a pressure greater than the volume C in which the measurement is made.
- the cone 3 is pierced at its tip allowing a flow of the shielding gas and blowing the projections emitted from the plasma in the opposite direction of the porthole.
- the measuring system can comprise the following components:
- an optical system capable of collecting and measuring the wavelengths of interest emitted by the plasma formed within the sample, for example a spectrometer, and
- the laser and the spectrometer are the means of implementing Laser Induced Plasma Spectroscopy (LIBS).
- LIBS Laser Induced Plasma Spectroscopy
- an aliquot of the liquid to be analyzed is taken and directed towards the cell.
- Control of the flow of the liquid to be analyzed passing through the cell can be provided by an adjustable pressure reducing member.
- FIG. 2 illustrates a measurement system according to the first embodiment of the invention.
- the scanning means of the cell by a gas are not shown.
- the liquid is fed through a sampling and conveying system 5 to the measuring cell 1, for example identical to that of FIG.
- the liquid to analyze can come directly from a pipe in which the liquid circulates.
- a laser 6 pulls through the window on the measuring cell 1 to the liquid, the laser pulse produces a plasma whose light is collected through the cell window via optical collection means.
- the laser 6 employed has sufficient energy to produce a power density capable of forming a sufficiently bright plasma from the liquid to be analyzed. Any type of wavelength of the laser can be used for the system according to the invention, so the visible near the infrared or the ultraviolet can be used.
- NIR near-infrared
- the firing frequency is adapted to the flow of the liquid, a low frequency (10-20 Hz) is preferable in order to reduce the formation of wavelets on the surface of the liquid and to disadvantage the dense aerosol formation on the path of the laser beam .
- Several pulse durations of the laser are compatible with the system according to the invention, for example a laser with a pulse duration of the order of one nanosecond is adapted, the example cited above has such a duration of impulse.
- the laser beam can be routed to the cell by optical fiber.
- optical fiber 7 The light collected by optical means is transported by optical fiber 7 to a spectrometer 8 adapted to the wavelengths of the species to be monitored in the liquid to be analyzed.
- a spectrometer 8 adapted to the wavelengths of the species to be monitored in the liquid to be analyzed.
- the use of an optical fiber 7 makes it possible to deport the instrumentation in non-ATEX zone (ATmospheres EXplosibles) or can allow the multiplexing and the follow-up of several sampling points.
- the specific wavelengths of the compounds of the liquid to be analyzed are separated and detected by the device 8.
- a computer 9 can serve as a system for processing / displaying the information (spectrometer measurements) and for controlling the spectrometer 8 and the laser 6.
- the computer 9 processes the data and transmits them continuously.
- data is acquired quickly and without delay (which could be due to sampling, routing, preparation and laboratory analysis).
- the system according to the invention guarantees online monitoring adapted to the analysis of a liquid.
- Another advantage of the proposed system is a protection system which limits the pollution of the measurement window by the ablated material.
- the scanning of the measuring cell and the cone by a low-pressure inert gas can be achieved by means of two flow meters, for example mass flowmeters or rotameters.
- FIG. 3 schematically illustrates a measuring cell equipped with a scanning system according to the first embodiment of the invention.
- the measuring cell may be identical to that of Figure 1.
- the measuring cell 1 is equipped with means for sampling and conveying liquid LIQ to be analyzed.
- the system comprises means (by-pass) of the liquid, able to deviate from the measuring cell 1 a part of the liquid, especially in case of high flow.
- a scanning system injects a gas G1, in particular an inert gas (nitrogen or helium) at low pressure, into the cell.
- Part of the gas G1 is injected into the conical part 3 towards the port by means of the pipe 10 and a first mass flow meter FC, that is to say in the compartment delimited by the conical part and the porthole.
- Another part of the gas is injected outside the conical part by means of a pipe 11 and a second mass flow meter FC, that is to say towards one face of the conical piece facing the channel of flow of the liquid.
- the gas leaves the measuring cell through
- Figures 4 and 5 illustrate a second embodiment according to the invention.
- the liquid flows as a jet, the plasma being generated on the surface of the jet.
- the second embodiment of the invention comprises in the same manner as the first embodiment of the invention: a window 2, means for protecting the window, these means being able to be formed by an inverted cone 3 and means for sweep 12 of the measuring cell 1 with a gas (for example nitrogen or helium), in particular at the cone and at the porthole.
- a gas for example nitrogen or helium
- FIG. 4 illustrates the measuring cell according to the second embodiment of the invention, the section plane being a plane comprising the axis of the liquid flow means.
- FIG. 5 illustrates a measurement cell according to the second embodiment of the invention, the section plane being a plane comprising the axis of the protective cone.
- the measuring cell according to the second embodiment further comprises means for projecting the liquid jet 13 for example by means of a nozzle generating a liquid jet, and means 14 for discharging the liquid by gravity.
- the jet of liquid can be drained by a gas.
- the means for projecting the jet liquid 13 may be contained in a substantially conical chamber 15.
- the chamber 15 collects the liquid and directs it to the evacuation means 14 which may be a vertical pipe.
- the axis of the chamber 15 is offset relative to the axis of the protective cone.
- the laser beam is directed towards a part of the jet remote from the outlet of the liquid projection means 13.
- This measuring cell 1 can be integrated in a measuring system as illustrated in FIG. 2, the liquid-spraying means being fed by a sampling and routing system 5.
- the laser, the spectrometer and the optical devices are identical to those shown in Figure 2.
- the scanning means of the cell may be identical to those illustrated in FIG.
- This second embodiment is suitable for a high liquid flow of the order of a few liters per minute.
- this second embodiment meets the NESSI (New Sampling / Sensor Initiative) standards of online analysis.
- the system according to the invention thus allows a continuous measurement in line thanks to the flow of the liquid in an inclined channel or by means of a jet of liquid, for any type of liquid, including viscous liquids, and allows a measurement precise and immediate thanks to the means of protection implemented and the fact that no tank is necessary.
- the measuring system according to the invention can therefore be used for petroleum products, such as crude oils, organic oils, emulsions, for aqueous liquids, etc.
- the system according to the invention makes it possible to determine a content of inorganic elements in an organic effluent by the LIBS technique in line monitoring, more preferably to follow efficiently the demetallation processes of the petroleum products for which the sulfur content, nickel and vanadium should be followed over time.
- the world crude oil market is experiencing a decline in availability of light oils with the appearance of heavier oil containing larger amounts of impurities.
- the main contaminants in these products are mainly nickel and vanadium, present together with sulfur.
- efficient demetallation processes must be developed and effectively monitored.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Optical Measuring Cells (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1453735A FR3020462B1 (fr) | 2014-04-25 | 2014-04-25 | Systeme de mesure de la composition d'un liquide par spectroscopie sur plasma induit par laser |
PCT/EP2015/057597 WO2015162006A1 (fr) | 2014-04-25 | 2015-04-08 | Systeme de mesure de la composition d'un liquide par spectroscopie sur plasma induit par laser |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3134723A1 true EP3134723A1 (fr) | 2017-03-01 |
Family
ID=51483568
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15718169.4A Withdrawn EP3134723A1 (fr) | 2014-04-25 | 2015-04-08 | Systeme de mesure de la composition d'un liquide par spectroscopie sur plasma induit par laser |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3134723A1 (fr) |
FR (1) | FR3020462B1 (fr) |
WO (1) | WO2015162006A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112945936B (zh) * | 2021-01-28 | 2023-02-03 | 西安电子科技大学 | 基于激光等离子体自约束的液体样品光谱测量方法与装置 |
CN113092395A (zh) * | 2021-03-31 | 2021-07-09 | 四川大学 | 一种基于咖啡环的细胞快速分类与定量方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6741345B2 (en) * | 2001-02-08 | 2004-05-25 | National Research Council Of Canada | Method and apparatus for in-process liquid analysis by laser induced plasma spectroscopy |
US6784429B2 (en) * | 2002-04-19 | 2004-08-31 | Energy Research Company | Apparatus and method for in situ, real time measurements of properties of liquids |
FR2844878B1 (fr) * | 2002-09-24 | 2005-08-05 | Commissariat Energie Atomique | Procede et dispositif de spectroscopie d'emission optique d'un liquide excite par laser |
JP2006242595A (ja) * | 2005-02-28 | 2006-09-14 | Mitsubishi Heavy Ind Ltd | 油中の有機ハロゲン化物検出装置 |
JP2010038557A (ja) * | 2008-07-31 | 2010-02-18 | Toshiba Corp | 元素分析装置および元素分析方法 |
DE102009008232A1 (de) * | 2009-02-10 | 2010-08-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Einrichtung und Verfahren zur Anbindung einer optischen Messeinrichtung an ein Messvolumen |
CN102841075B (zh) * | 2011-11-15 | 2016-01-06 | 中国科学院光电研究院 | 激光光谱诱导成分检测*** |
-
2014
- 2014-04-25 FR FR1453735A patent/FR3020462B1/fr not_active Expired - Fee Related
-
2015
- 2015-04-08 WO PCT/EP2015/057597 patent/WO2015162006A1/fr active Application Filing
- 2015-04-08 EP EP15718169.4A patent/EP3134723A1/fr not_active Withdrawn
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2015162006A1 * |
Also Published As
Publication number | Publication date |
---|---|
FR3020462B1 (fr) | 2016-05-06 |
FR3020462A1 (fr) | 2015-10-30 |
WO2015162006A1 (fr) | 2015-10-29 |
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