JP2017110946A - 吸光度計 - Google Patents
吸光度計 Download PDFInfo
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- JP2017110946A JP2017110946A JP2015243568A JP2015243568A JP2017110946A JP 2017110946 A JP2017110946 A JP 2017110946A JP 2015243568 A JP2015243568 A JP 2015243568A JP 2015243568 A JP2015243568 A JP 2015243568A JP 2017110946 A JP2017110946 A JP 2017110946A
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- 238000002835 absorbance Methods 0.000 title abstract description 14
- 230000003287 optical effect Effects 0.000 claims abstract description 68
- 238000005259 measurement Methods 0.000 claims abstract description 59
- 238000005260 corrosion Methods 0.000 description 24
- 230000007797 corrosion Effects 0.000 description 19
- 239000000126 substance Substances 0.000 description 17
- 230000007246 mechanism Effects 0.000 description 11
- 239000000243 solution Substances 0.000 description 11
- 239000004065 semiconductor Substances 0.000 description 8
- 238000001514 detection method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 4
- 230000008859 change Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000008155 medical solution Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010606 normalization Methods 0.000 description 1
- 239000005304 optical glass Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
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- G—PHYSICS
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0297—Constructional arrangements for removing other types of optical noise or for performing calibration
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
- G01J1/16—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors
- G01J1/1626—Arrangements with two photodetectors, the signals of which are compared
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/12—Generating the spectrum; Monochromators
- G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/28—Investigating the spectrum
- G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
-
- 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
- G01N21/03—Cuvette constructions
-
- 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
- G01N21/03—Cuvette constructions
- G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
-
- 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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
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- 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
- G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
- G01N21/274—Calibration, base line adjustment, drift correction
- G01N21/276—Calibration, base line adjustment, drift correction with alternation of sample and standard in optical path
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
- G01J3/02—Details
- G01J3/0205—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows
- G01J3/0208—Optical elements not provided otherwise, e.g. optical manifolds, diffusers, windows using focussing or collimating elements, e.g. lenses or mirrors; performing aberration correction
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- 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
- G01N21/03—Cuvette constructions
- G01N2021/036—Cuvette constructions transformable, modifiable
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- G—PHYSICS
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- 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
- G01N21/03—Cuvette constructions
- G01N2021/0389—Windows
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- G—PHYSICS
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- 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
- G01N2021/3118—Commutating sources, e.g. line source/broad source, chopping for comparison of broad/narrow regimes
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- 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
- G01N21/03—Cuvette constructions
- G01N21/05—Flow-through cuvettes
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- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
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- Engineering & Computer Science (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Abstract
Description
従来の吸光度計においては、リファレンスセルを測定位置及び退避位置の間で移動させる際に、両位置の間に架け渡したガイドに沿わせてリファレンスセルをスライドさせる移動機構を採用している。
しかしながら、本発明者は、従来、リファレンスセルに使用されている吸収型の減光素子に代えて経時変化の少ない反射型の減光素子を使用した場合に、リファレンス測定毎に検出される光の光量の変動がより顕著に現われたことから、移動による再配置のたびに、前記減光素子の姿勢がわずかにズレることによって、リファレンス光の光量変動が生じるのではないかと考えている。具体的には、減光素子の入射面及び出射面で発生する反射光によって生じる多重反射の影響が変化し、結果として、本来一定になるはずのリファレンス測定毎に検出される光の光量がリファレンスセルを測定位置に位置付ける度に変動してしまうことに光量変動の一因があるのではないかと本発明者は考察している。
なお、本発明は前記実施形態に限られるものではない。
リファレンスセル5及びサンプルセル6を固定して光源側を移動させるようにしてもよく、かかる構成のものでも同様の効果を奏し得る。
2 光源
4 光検出器
5 サンプルセル
6 リファレンスセル
61 減光部材(透光部材)
62,63 耐腐食部材(透光部材)
61a,62a,63a 入射面
61b,62b,63b 出射面
Claims (6)
- 光源と、
光源から照射される光を検出する光検出器と、
光源及び光検出器の間を通過する光の光路上に位置するサンプル測定位置及び当該サンプル測定位置から退避したサンプル退避位置のいずれかに、選択的に配置できるサンプルセルと、
光源及び光検出器の間を通過する光の光路上に位置するリファレンス測定位置及び当該リファレンス測定位置から退避したリファレンス退避位置のいずれかに、選択的に配置でき、リファレンス測定位置に配置された状態で前記光路上を進行する光を入射面から出射面へ透過させる少なくとも一つの透光部材が収容されるリファレンスセルとを備え、
リファレンスセルを構成する透光部材の入射面及び出射面から選択される少なくとも一つの面が前記光路上を進行する光の光軸に対して傾斜していることを特徴とする吸光度計。 - リファレンスセルがリファレンス測定位置及びリファレンス退避位置の間に架け渡されたガイドに沿ってスライド移動できるようになっている請求項1記載の吸光度計。
- リファレンスセルを構成する全ての透光部材の入射面及び出射面から選択される少なくとも一対の面が平行になっており、当該一対の面のいずれもが光路上を進行する光の光軸に対して傾斜している請求項1又は2のいずれかに記載の吸光度計。
- リファレンスセルを構成する全ての透光部材の入射面及び出射面が平行になっている請求項1又は2のいずれかに記載の吸光度計。
- リファレンスセルを構成する透光部材の入射面及び出射面から選択される少なくとも一対の面が非平行になっており、当該一対の面のいずれか一方又は双方が光路上を進行する光の光軸に対して傾斜している請求項1又は2のいずれかに記載の吸光度計。
- リファレンスセルを構成する全ての透光部材の入射面及び出射面が非平行になっている請求項1又は2のいずれかに記載の吸光度計。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015243568A JP6641171B2 (ja) | 2015-12-14 | 2015-12-14 | 吸光度計 |
US15/355,399 US9897485B2 (en) | 2015-12-14 | 2016-11-18 | Absorption spectrometer |
KR1020160153691A KR102555556B1 (ko) | 2015-12-14 | 2016-11-18 | 흡광도계 |
CN201611059127.6A CN107036981B (zh) | 2015-12-14 | 2016-11-24 | 吸收光谱仪 |
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JP2015243568A JP6641171B2 (ja) | 2015-12-14 | 2015-12-14 | 吸光度計 |
Publications (2)
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JP2017110946A true JP2017110946A (ja) | 2017-06-22 |
JP6641171B2 JP6641171B2 (ja) | 2020-02-05 |
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JP2015243568A Active JP6641171B2 (ja) | 2015-12-14 | 2015-12-14 | 吸光度計 |
Country Status (4)
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US (1) | US9897485B2 (ja) |
JP (1) | JP6641171B2 (ja) |
KR (1) | KR102555556B1 (ja) |
CN (1) | CN107036981B (ja) |
Families Citing this family (1)
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US10571334B2 (en) | 2017-12-15 | 2020-02-25 | Horiba Instruments Incorporated | System and method for selective resolution for concave grating spectrometer |
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JPH0310901B2 (ja) * | 1985-06-12 | 1991-02-14 | Mitsubishi Materiaru Kk | |
JP2000206035A (ja) * | 1999-01-19 | 2000-07-28 | Anritsu Corp | ガス検出装置 |
US6274879B1 (en) * | 1998-09-04 | 2001-08-14 | DRäGER MEDIZINTECHNIK GMBH | Process and device for the quantitative detection of a given gas |
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2015
- 2015-12-14 JP JP2015243568A patent/JP6641171B2/ja active Active
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2016
- 2016-11-18 KR KR1020160153691A patent/KR102555556B1/ko active IP Right Grant
- 2016-11-18 US US15/355,399 patent/US9897485B2/en active Active
- 2016-11-24 CN CN201611059127.6A patent/CN107036981B/zh active Active
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JPH0310901B2 (ja) * | 1985-06-12 | 1991-02-14 | Mitsubishi Materiaru Kk | |
JPS6423142A (en) * | 1987-07-17 | 1989-01-25 | Fujitsu Ltd | Detector for sulfurous acid gas |
US6274879B1 (en) * | 1998-09-04 | 2001-08-14 | DRäGER MEDIZINTECHNIK GMBH | Process and device for the quantitative detection of a given gas |
JP2000206035A (ja) * | 1999-01-19 | 2000-07-28 | Anritsu Corp | ガス検出装置 |
US20020158202A1 (en) * | 2001-01-08 | 2002-10-31 | Webber Michael E. | Laser-based sensor for measuring combustion parameters |
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JP2010243311A (ja) * | 2009-04-06 | 2010-10-28 | Jeol Ltd | レーザ光源を用いた分光計およびキュベット |
JP2012137303A (ja) * | 2010-12-24 | 2012-07-19 | Horiba Ltd | 光学分析装置 |
JP2013127414A (ja) * | 2011-12-19 | 2013-06-27 | Fuji Electric Co Ltd | 多成分用レーザ式ガス分析計 |
JP2014062278A (ja) * | 2012-09-20 | 2014-04-10 | Sumitomo Electric Ind Ltd | アルミニウム酸化物イオンの定量方法、溶融塩中の水分定量方法、アルミニウム構造体の製造方法 |
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Publication number | Publication date |
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CN107036981A (zh) | 2017-08-11 |
JP6641171B2 (ja) | 2020-02-05 |
US9897485B2 (en) | 2018-02-20 |
KR102555556B1 (ko) | 2023-07-18 |
US20170167918A1 (en) | 2017-06-15 |
KR20170070804A (ko) | 2017-06-22 |
CN107036981B (zh) | 2020-12-04 |
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