WO2002021570A1 - Lampe a cathode creuse, analyseur a absorption atomique et analyseur a fluorescence atomique - Google Patents
Lampe a cathode creuse, analyseur a absorption atomique et analyseur a fluorescence atomique Download PDFInfo
- Publication number
- WO2002021570A1 WO2002021570A1 PCT/JP2001/007426 JP0107426W WO0221570A1 WO 2002021570 A1 WO2002021570 A1 WO 2002021570A1 JP 0107426 W JP0107426 W JP 0107426W WO 0221570 A1 WO0221570 A1 WO 0221570A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- stem
- anode
- lamp
- hollow cathode
- tube
- Prior art date
Links
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
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6402—Atomic fluorescence; Laser induced fluorescence
-
- 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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/3103—Atomic absorption analysis
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/64—Cathode glow lamps
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/04—Electrodes; Screens; Shields
- H01J61/06—Main electrodes
- H01J61/09—Hollow cathodes
Definitions
- the present invention relates to a light source of an analyzer for performing an atomic absorption analysis or an atomic fluorescence analysis or the like, and a holo-power sword lamp used as a high-intensity bright line light source. Further, the present invention relates to an atomic absorption spectrometer and an atomic fluorescence analyzer using the above-mentioned holographic lamp.
- U.S. Pat. No. 4,885,504 discloses a technique in such a field.
- the hollow sword lamp described in this publication generates a discharge between the hollow cathode and the anode, and sputters the surface of the hollow cathode with ions, so that the inside of the hollow pole is discharged into the discharge space. Atoms are scattered, and a predetermined spectrum line is generated by transfer of electron energy. Also, some of the spectral lines are deprived of energy by unexcited atoms in the discharge space, which causes self-absorption in the lamp, which reduces the intensity of the spectrum lines. In order to prevent this, an electron source (auxiliary cathode) for emitting thermoelectrons is provided separately from the hollow cathode in the lamp.
- the present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a holographic lamp in which the assembling workability is improved and discharge sneakage to the anode hardly occurs. Another object of the present invention is to provide an atomic absorption spectrometer and an atomic fluorescence spectrometer using such a holo-sword lamp. Disclosure of the invention
- a light emission window is arranged on one end side of a bulb
- a stem is arranged on the other end side of the bulb
- a hollow cathode and an anode are arranged in the bulb from the light emission window side toward the tube axis.
- a tubular member extending in the tube axis direction is erected substantially at the center of the stem, and the tubular member extends in the tube axis direction.
- the anode tube surrounded by 5 penetrates the stem.
- This hollow sword lamp is designed to improve productivity and achieve a structure in which discharge from other than the hollow P electrode is unlikely to flow around the anode.
- the tubular member and the anode tube were erected, and the tubular member surrounded the anode tube. Such a structure causes the discharge to wrap around the anode,
- the anode tube itself Surrounding of the L0-easy portion is achieved with a simple configuration such that a tubular member is erected on the valve. Also, as a result of the anode tube itself penetrating the stem, the anode tube itself can be used as a lead wire. Furthermore, by making the anode itself tubular, the surface area is enlarged, the heat dissipation effect is increased, and the input current value can be increased. Therefore, the light output can be improved with a simple structure. And on the stem
- An atomic absorption spectrometer is an atomic absorption spectrometer for measuring a specific component contained in a sample, comprising: an atomization means for atomizing a sample;
- a light source that irradiates a light beam containing the resonance line of the component contained in the pull toward the atomized sample, and a light beam that has passed through the atomized sample
- a measuring unit for measuring the absorbance of the incident light wherein the light source is configured such that a tubular member extending in the tube axis direction is erected substantially at the center of the stem, and is extended in the tube axis direction and surrounded by the tubular member.
- the anode tube is a sword lamp with a hollow force penetrating the stem.
- This atomic absorption spectrometer is a device that allows the measurement unit to measure the absorbance of the incident light of the light beam that has passed through the atomized sample, and the light source used here.
- the hollow sword lamp has a cylindrical member on the stem inside the bulb in order to improve productivity and achieve a structure in which discharge from other than the hollow cathode does not easily flow around the anode. Then, the anode tube was erected, and the cylindrical member surrounded the anode tube. Due to such a structure, the discharge wraps around the anode
- the anode tube itself Surrounding of the part that is easy to achieve is achieved with a simple configuration such as a tubular member being erected on the valve. Further, as a result of the anode tube itself penetrating the stem, the anode tube itself can be used as a lead wire. Furthermore, by making the anode itself tubular, the surface area is enlarged, the heat dissipation effect is accordingly increased, and the input current value can be increased, so that the light output can be improved with a simple structure. And the stem
- An atomic fluorescence spectrometer is an atomic fluorescence spectrometer for measuring a specific component contained in a sample, comprising: an atomic fluorescence means for atomizing a sample;
- the light source has a light source that irradiates the atomized sample toward the atomized sample, and a measuring unit that measures the intensity of the fluorescence emitted by the atoms excited by the light beam.
- the light source extends in the tube axis direction
- An anode tube in which a tubular member is erected substantially at the center of the stem and extends in the tube axis direction and is surrounded by the tubular member is a holo-force sword lamp penetrating the stem.
- This atomic fluorescence analyzer is a device for measuring the intensity of the fluorescence emitted by the atoms excited by the light beam by the measuring part.
- a tubular member and an anode tube are erected on the stem in the bulb, and the tubular member is To surround the anode tube
- the surrounding of a portion where discharge spillage to the anode is likely to occur can be achieved with a simple structure such as a tubular member being erected on the bulb. You. Further, as a result of the anode tube itself penetrating the stem, the anode tube itself can be used as a lead wire. Furthermore, by making the anode itself tubular, the surface area is increased, and accordingly, the heat radiation effect is increased, and the input current value can be increased. Therefore, the light output can be improved with a simple structure. And the stem is positive
- FIG. 1 is an exploded perspective view L0 showing a first embodiment of a hollow power lamp according to the present invention.
- FIG. 2 is a sectional view showing a state after the assembling of the holocaust lamp shown in FIG. 1 is completed.
- FIG. 3 is a longitudinal sectional view of the holo-powered sword lamp shown in FIG.
- FIG. 4 is a cross-sectional view L5 showing a second embodiment of the holing force sword lamp according to the present invention.
- FIG. 5 is a longitudinal sectional view of the holographic lamp shown in FIG.
- FIG. 6 is a diagram schematically showing an atomic absorption analyzer and an atomic fluorescence analyzer according to the present invention.
- the holo-sword lamp 1 has a cylindrical bulb 2 made of borosilicate glass having an open lower end. By closing the upper end of the bulb 2, a circular light exit window 3 is formed at the upper end of the bulb 2, and a predetermined fluorescence is emitted to the outside by the light exit window 3.
- This valve 2 has a lower end that closes the open side.
- the disk-shaped glass stem 4 is fused as described above, and the hermetically sealed glass container 5 is formed by the bulb 2 and the stem 4.
- Four stem pins 6 a to 6 d made of metal cover extending in the tube axis L direction are fixed to the stem 4 by melting the glass stem 4.
- an exhaust anode tube 7 extending in the direction of the tube axis L is fixed by melting the glass stem 4.
- the anode tube 7 is used as an anode in the sealed container 5 and extends so as to penetrate the center of the stem 4 in the tube axis L direction. Then, when assembling the sword lamp 1, the anode tube 7 evacuates the air in the sealed container 5 and then externally supplies a predetermined gas (for example, neon gas).
- a predetermined gas for example, neon gas
- the anode tube 7 itself penetrating the stem 4
- the anode tube 7 itself can be used as a lead wire.
- the surface area is enlarged, the heat dissipation effect is increased, and the input current value can be increased.
- a cylindrical member 8 made of ceramics extending in the direction of the tube axis L is accommodated in the sealed container 5, and the cylindrical member 8 is set up substantially at the center of the stem 4.
- the cylindrical member 8 concentrically surrounds the anode tube 7, and the stem pins 6 a to 6 d are arranged around the cylindrical member 8.
- the cylindrical member 8 includes the stem pins 6a to 6d and the anode tube.
- : 0 to 7 is used as an electric partition.
- a support projection 9 is formed in the center of the stem 4 so as to surround the anode tube 7, and the support projection 9 is formed in a cylindrical shape.
- the member 8 is inserted into the opening 8a on the stem 4 side. Thereby, the cylindrical member 8 can be supported in the radial direction at the peripheral portion of the support projection 9. Therefore, run
- a cylindrical hollow cathode 10 is accommodated in an end (upper end) on the light emission window 3 side of both open ends of the cylindrical member 8.
- the hollow cathode 10 has a double structure of an outer cylindrical portion 10a made of stainless steel and an inner cylindrical portion 1Ob made of vanadium. The material of the inner cylinder portion 10b is changed according to the type of the element to be analyzed.
- the outer cylindrical portion 10a may not be used depending on the material of the inner cylindrical portion 1Ob. .
- the hollow cathode 10 is accommodated in a suspended state at the upper end of the tubular member 8 via a cup-shaped holder 11 made of stainless steel or the like.
- This holder 1 1 is a cup-shaped holder 11 made of stainless steel or the like.
- a ring-shaped bottom 11b supporting the hollow cathode 10 and extending outward from the light exit window 3 side end (upper end) of the main body 11a are formed in a cylindrical shape. It is composed of a flange portion 11c abutted on the end face 8c of the member 8.
- the hollow cathode 10 Since the hollow cathode 10 is supported from below by the ring-shaped bottom l ib by such a holder 11, the hollow cathode 10 can be inserted into the holder 11 from above. Further, by placing the flange portion 11c on the upper end surface 8c of the cylindrical member 8, the holder 11 is supported by the upper end surface 8c of the cylindrical member 8, and the inside of the cylindrical member 8 The hollow cathode 10 is accommodated in a suspended state above the anode tube 7
- the hollow cathode 10 can be easily arranged concentrically with respect to the tubular member 8 by a simple operation of inserting the hollow cathode 10 into the holder 11 from above. Then, as a result of arranging the cylindrical member 8 concentrically with respect to the anode tube 7, the hollow cathode 10 is arranged concentrically with respect to the anode tube 7.
- the holder 11 is made of a conductive metal, the hollow with the holder 11 interposed
- a hood portion 12 made of stainless steel, nickel, or the like is placed on the holder 11 supported by the tubular member 8.
- the hood portion 12 includes a cylindrical main body portion 12a extending in the direction of the pipe axis L, and a flange portion 12b formed by projecting outward at a lower end of the main body portion 12a. Have. Therefore, the flange 1 2 b of the hood 1 2
- the hollow cathode 10 and the hood section 12 are reliably electrically connected via the holder 11 by making contact with the flange section 11 c of the first section.
- the hollow cathode 10 is pressed down from above by the flange portion 12 b of the hood portion 12, so that the hollow cathode 10 is properly prevented from sticking out.
- hood section 12 prevents the sputters generated from the hollow cathode 1 ° from being scattered over a wide area during discharge, and a large amount of sputters adheres to the inner wall surface of the knob 2.
- the density of the cathode element generated from the hollow cathode 10 can be increased in the hood 12.
- the hood 12 also contributes to the heat dissipation of the hollow cathode 10, thereby increasing the operating current of the lamp 1.
- a circular opening 12c is formed on the peripheral surface of the main body portion 12a, and a coil-shaped thermoelectron emission cathode (electron supply source) is formed in front of the opening 12c.
- thermoelectron emission cathode electroelectron supply source
- L-shaped connecting pins 14 are welded and fixed to both ends of the thermionic emission cathode 13, and each connecting pin 14 is a stem extending from the stem 4 in the tube axis L direction.
- thermoelectron emission cathode 13 is formed by depositing barium oxide on the surface of a coil made of tungsten.
- thermoelectrons emitted from the thermionic emission cathode 13 are used to generate a discharge that passes through the opening 12c of the hood portion 12 and the thermoelectron emission cathode 13 and the discharge.
- the (ground state) cathode element is efficiently excited.
- so-called self-sucking The phenomenon (a phenomenon in which some of the spectral lines are deprived of energy by unexcited atoms in the discharge space, thereby reducing the intensity of the spectrum line) is less likely to occur in the lamp 1. Thereby, the light output of the lamp 1 is improved.
- the flange portion 12b is pressed from above by the power supply plate 16 made of stainless steel.
- a circular through hole 16a for inserting the main body 12a of the hood portion 12 is formed, and the stem pins 6a, 6b are inserted into the sides of the through hole 16a.
- Pin insertion hole 16b is formed.
- the power supply plate 16 is provided with a pair of left and right welding pieces 16c formed of tongue pieces. Each welding piece 16 c
- the through hole 16a On both sides of the through hole 16a, it is formed by bending the disk-shaped power supply plate 16 at right angles along a radial line.
- the hood 12 is placed on the holder 11 supported by the cylindrical member 8, the main body 12a is inserted into the through hole 16a of the power supply plate 16, and the stem pins 6a, 6b are inserted into the pin insertion hole 16b. After that, weld the holder 1 1 and the hood 12
- a stem 4 to which four stem pins 6 and an anode tube 7 are fixed is prepared. Then, insert the stem pins 6 a and 6 b into the shield tube 17. Then, the tubular member 8 is placed on the stem 4 so that the anode tube 7 is inserted into the tubular member 8. 5 Thereby, the cylindrical member 8 is erected on the stem 4 so as to surround the anode tube 7.
- the main body 1 la of the holder 11 is inserted into the cylindrical member 8 from above, and the flange 11 c of the holder 11 is placed on the upper end of the cylindrical member 8.
- the hollow cathode 10 is dropped into the holder 11.
- thermoelectron emission cathode (electron! 0 supply source) 13 placed in front of the opening 1 2c of the hood section 12, connect the connecting pins 14 to the stem pins 6a and 6b. Let the top end weld each. As a result, the thermionic emission cathode 13 and the stem pins 6a and 6b are electrically connected. After assembling the components on the stem 4, the assembly is inserted from the open side of the knob 2, and the open end of the knob 2 is fused to the peripheral edge of the stem 4.
- the air in the sealed container 5 is evacuated and a predetermined gas (for example, neon gas or the like) is injected from the outside.
- a predetermined gas for example, neon gas or the like
- FIG. 2 while cutting the exposed portion of the anode tube 7 into a predetermined length and crushing the lower end, the inside of the sealed container 5 is closed while maintaining the predetermined gas pressure.
- a predetermined voltage for example, 500 V
- a discharge is generated between the two.
- the neon gas atoms sealed in the sealed ⁇ 5 are ionized by this discharge. Cations generated by this ionization are attracted to the hollow cathode 10 side,
- the spurs emitted from the hollow cathode 10 adhere to the inner wall surface of the hood portion 12, so that the inner wall surface of the bulb 2 is less likely to be contaminated with the spurs. Further, the hood portion 12 prevents the scattered cathode element from being scattered over a wide area, and as a result, the cathode element that has been sputtered in the hood portion 12 can be retained at a high density.
- a predetermined voltage is applied to the thermionic emission cathode 13 via the stem pins 6a and 6b.
- thermoelectrons e.g., 3 V
- a predetermined voltage e.g. 200 V
- the cathode element in (5) efficiently transitions to the excited state, and the light output of lamp 1 is improved.
- the holo-power sword lamp 30 shown in FIGS. 4 and 5 is provided with a thermionic emission cathode 13 but is not provided with a hood, and is supplied with power by welding it to the stem pins 6c and 6d.
- a plate 31 is provided.
- the power supply plate 31 is disposed on the flange portion 11 c of the holder 11 and is brought into contact with the upper end surface of the outer cylindrical portion 10 a of the hollow cathode 10.
- the outer cylindrical portion 10a of the hollow cathode 10 and the flange portion 11c of the holder 11 are pressed from above by the power supply plate 31.
- the power supply to the hollow cathode 10 is reliably performed by the power supply plate 31 and the hollow cathode 10 is reliably prevented from jumping out of the holder 11.
- a cylindrical anode cap (protection member) 28 made of stainless steel, tungsten, molybdenum or the like and having an impact resistance is fitted and fixed to the upper end of the anode tube 7 made of Kovar metal from above.
- the tip of the anode tube 7 can be protected from collision of electrons, heat and the like, and damage to the anode tube 7 can be avoided.
- the atomic absorption spectrometer 105 has an atomizing means 101 for atomizing the sample 100.
- a light beam containing the resonance line of the target element contained in the sample 100, which is to be measured, is emitted from the light source 102, and this light irradiates the atomized sample 100. Is done.
- the light beam that has passed through the atomized sample 100 is incident on the measuring unit 103, and the target element is quantified based on the absorbance at this time.
- the above-mentioned various holographic lamps can be applied to the light source 102, and the hollow cathode in the holographic lamp is made of a specific component element contained in the sample 100. ing.
- Reference numeral 104 denotes a light condensing means composed of a reflection mirror for condensing a plurality of kinds of holopower sword lamps.
- the atomization performed by the atomic absorption spectrometer 105 is generally performed using a flame. For example, a frameless method using an electric heating furnace or the like is used.
- the atomic fluorescence analyzer 106 has an atomizing means 101 for atomizing the sample 100. Further, a light beam from the light source 102 is applied to the atomized sample 100. Then, the measurement unit 103 measures the fluorescence intensity of the five elements emitted by the light beam to quantify the target element. This light beam contains the resonance line of the target element. As the light source 102, the above-described various holographic lamps can be applied. The hollow cathode in the holographic cathode lamp is constituted by a specific component element contained in the sample 100. I have.
- Reference numeral 104 denotes a condensing means consisting of a reflection mirror and L0 for condensing a plurality of kinds of holo-sword lamps.
- the atomization performed by the atomic fluorescence analyzer 106 is generally performed by a flame method or a flameless method using an electric furnace.
- a metal protection member at the tip of the anode tube.
- the tip portion of the anode tube can be protected from electron impact, heat, and the like, and damage to the anode tube can be avoided.
- an electron supply source is arranged between the light exit window and the hollow cathode, and the electron supply source is fixed to the stem pin.
- the discharge using thermionic emission between the electron supply source and the anode continuously supplies electrons to the unexcited atoms, thereby promoting the generation of excited atoms and causing self-excitation that causes a decrease in lamp output.
- the absorption phenomenon can be suppressed! 5.
- a cylindrical hood extending in the tube axis direction is arranged concentrically with respect to the cylindrical member.
- one end of the hood portion on the opening side is electrically connected to the hollow cathode, and the electron supply source is arranged in front of the opening formed on the peripheral surface of the hood portion.
- the present invention relates to a light source of an analyzer for performing an atomic absorption analysis or an atomic fluorescence analysis, and a holo-force sword lamp used as a high-intensity bright-line light source, which improves assembly workability and discharges an anode. It is difficult for wraparound to occur. Furthermore, the present invention relates to an atomic absorption spectrometer and an atomic fluorescence spectrometer using the above-mentioned holographic lamp.
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Optics & Photonics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2001282536A AU2001282536A1 (en) | 2000-09-01 | 2001-08-29 | Hollow cathode lamp, atomic absorption analyzer, and atomic fluorescence analyzer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000-265654 | 2000-09-01 | ||
JP2000265654A JP2002075284A (ja) | 2000-09-01 | 2000-09-01 | ホロカソードランプ、原子吸光分析装置及び原子蛍光分析装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2002021570A1 true WO2002021570A1 (fr) | 2002-03-14 |
Family
ID=18752890
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2001/007426 WO2002021570A1 (fr) | 2000-09-01 | 2001-08-29 | Lampe a cathode creuse, analyseur a absorption atomique et analyseur a fluorescence atomique |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2002075284A (ja) |
AU (1) | AU2001282536A1 (ja) |
WO (1) | WO2002021570A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102507518A (zh) * | 2011-10-25 | 2012-06-20 | 天津港东科技发展股份有限公司 | 12灯位多通道原子荧光光度计 |
CN106323922A (zh) * | 2015-06-26 | 2017-01-11 | 北京瑞利分析仪器有限公司 | 双检测模式石英炉管 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113340857A (zh) * | 2021-04-16 | 2021-09-03 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | 一种提高原子荧光测量汞元素稳定性和信噪比的方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63122922A (ja) * | 1986-11-12 | 1988-05-26 | Japan Spectroscopic Co | ホロ−カソ−ドランプ及び該ランプを光源とした原子吸光/螢光分光光度計 |
EP0423736A2 (en) * | 1989-10-18 | 1991-04-24 | Hitachi, Ltd. | Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method |
WO2000051162A1 (fr) * | 1999-02-23 | 2000-08-31 | Hamamatsu Photonics K.K. | Lampe a cathode creuse |
WO2000051163A1 (en) * | 1999-02-23 | 2000-08-31 | Hamamatsu Photonics K.K. | Hollow-cathode lamp |
-
2000
- 2000-09-01 JP JP2000265654A patent/JP2002075284A/ja active Pending
-
2001
- 2001-08-29 AU AU2001282536A patent/AU2001282536A1/en not_active Abandoned
- 2001-08-29 WO PCT/JP2001/007426 patent/WO2002021570A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63122922A (ja) * | 1986-11-12 | 1988-05-26 | Japan Spectroscopic Co | ホロ−カソ−ドランプ及び該ランプを光源とした原子吸光/螢光分光光度計 |
EP0423736A2 (en) * | 1989-10-18 | 1991-04-24 | Hitachi, Ltd. | Multi-element simultaneous analysis atomic absorption spectroscopy photometer and multi-element simultaneous analytic method |
WO2000051162A1 (fr) * | 1999-02-23 | 2000-08-31 | Hamamatsu Photonics K.K. | Lampe a cathode creuse |
WO2000051163A1 (en) * | 1999-02-23 | 2000-08-31 | Hamamatsu Photonics K.K. | Hollow-cathode lamp |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102507518A (zh) * | 2011-10-25 | 2012-06-20 | 天津港东科技发展股份有限公司 | 12灯位多通道原子荧光光度计 |
CN102507518B (zh) * | 2011-10-25 | 2013-05-08 | 天津港东科技发展股份有限公司 | 12灯位多通道原子荧光光度计 |
CN106323922A (zh) * | 2015-06-26 | 2017-01-11 | 北京瑞利分析仪器有限公司 | 双检测模式石英炉管 |
CN106323922B (zh) * | 2015-06-26 | 2023-08-18 | 北京北分瑞利分析仪器(集团)有限责任公司 | 双检测模式石英炉管 |
Also Published As
Publication number | Publication date |
---|---|
JP2002075284A (ja) | 2002-03-15 |
AU2001282536A1 (en) | 2002-03-22 |
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