CA2229458A1 - Procede et appareil de determination des caracteristiques d'un echantillon en presence de lumiere ambiante - Google Patents
Procede et appareil de determination des caracteristiques d'un echantillon en presence de lumiere ambiante Download PDFInfo
- Publication number
- CA2229458A1 CA2229458A1 CA002229458A CA2229458A CA2229458A1 CA 2229458 A1 CA2229458 A1 CA 2229458A1 CA 002229458 A CA002229458 A CA 002229458A CA 2229458 A CA2229458 A CA 2229458A CA 2229458 A1 CA2229458 A1 CA 2229458A1
- Authority
- CA
- Canada
- Prior art keywords
- sample
- light
- light intensity
- detector
- ambient light
- 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.)
- Abandoned
Links
- 238000000034 method Methods 0.000 title claims description 37
- 238000005259 measurement Methods 0.000 claims abstract description 35
- 230000003287 optical effect Effects 0.000 claims abstract description 30
- 230000000694 effects Effects 0.000 claims abstract description 16
- 238000001914 filtration Methods 0.000 claims description 25
- 238000012360 testing method Methods 0.000 claims description 21
- BELBBZDIHDAJOR-UHFFFAOYSA-N Phenolsulfonephthalein Chemical group C1=CC(O)=CC=C1C1(C=2C=CC(O)=CC=2)C2=CC=CC=C2S(=O)(=O)O1 BELBBZDIHDAJOR-UHFFFAOYSA-N 0.000 claims description 11
- 230000006870 function Effects 0.000 claims description 11
- 229960003531 phenolsulfonphthalein Drugs 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 10
- 239000003283 colorimetric indicator Substances 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 5
- 238000012935 Averaging Methods 0.000 claims description 4
- 238000012773 Laboratory assay Methods 0.000 claims 2
- 239000003269 fluorescent indicator Substances 0.000 claims 1
- 230000005855 radiation Effects 0.000 claims 1
- 239000000523 sample Substances 0.000 description 94
- 238000001514 detection method Methods 0.000 description 23
- 238000010521 absorption reaction Methods 0.000 description 9
- 230000001580 bacterial effect Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000005286 illumination Methods 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- 230000008859 change Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 241000894006 Bacteria Species 0.000 description 5
- 230000002745 absorbent Effects 0.000 description 5
- 239000002250 absorbent Substances 0.000 description 5
- 238000003780 insertion Methods 0.000 description 5
- 230000037431 insertion Effects 0.000 description 5
- 239000003053 toxin Substances 0.000 description 5
- 231100000765 toxin Toxicity 0.000 description 5
- 108700012359 toxins Proteins 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000002965 ELISA Methods 0.000 description 4
- 238000003556 assay Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 238000013494 PH determination Methods 0.000 description 3
- 239000012491 analyte Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000037361 pathway Effects 0.000 description 3
- 239000001044 red dye Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000004113 cell culture Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007850 fluorescent dye Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004848 nephelometry Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 230000035899 viability Effects 0.000 description 2
- 230000004304 visual acuity Effects 0.000 description 2
- QRXMUCSWCMTJGU-UHFFFAOYSA-N 5-bromo-4-chloro-3-indolyl phosphate Chemical compound C1=C(Br)C(Cl)=C2C(OP(O)(=O)O)=CNC2=C1 QRXMUCSWCMTJGU-UHFFFAOYSA-N 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108010001336 Horseradish Peroxidase Proteins 0.000 description 1
- PLXBWHJQWKZRKG-UHFFFAOYSA-N Resazurin Chemical compound C1=CC(=O)C=C2OC3=CC(O)=CC=C3[N+]([O-])=C21 PLXBWHJQWKZRKG-UHFFFAOYSA-N 0.000 description 1
- 230000005856 abnormality Effects 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000003242 anti bacterial agent Substances 0.000 description 1
- 229940088710 antibiotic agent Drugs 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000003115 biocidal effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 230000003833 cell viability Effects 0.000 description 1
- 238000007705 chemical test Methods 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000002301 combined effect Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000000695 excitation spectrum Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 230000001900 immune effect Effects 0.000 description 1
- 238000002329 infrared spectrum Methods 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 231100001240 inorganic pollutant Toxicity 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000010339 medical test Methods 0.000 description 1
- 230000002503 metabolic effect Effects 0.000 description 1
- 239000003068 molecular probe Substances 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000765 processed proteins & peptides Proteins 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013074 reference sample Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000002076 thermal analysis method Methods 0.000 description 1
- 231100000041 toxicology testing Toxicity 0.000 description 1
- 238000001429 visible spectrum Methods 0.000 description 1
Classifications
-
- 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
- G01J1/4204—Photometry, e.g. photographic exposure meter using electric radiation detectors with determination of ambient light
-
- 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
- G01J1/44—Electric circuits
-
- 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
- G01J3/10—Arrangements of light sources specially adapted for spectrometry or colorimetry
-
- 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
- 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
- G01J3/44—Raman spectrometry; Scattering spectrometry ; Fluorescence spectrometry
- G01J3/4406—Fluorescence spectrometry
-
- 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
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters 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
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
- G01J3/501—Colorimeters using spectrally-selective light sources, e.g. LEDs
-
- 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
- G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
- G01J3/52—Measurement of colour; Colour measuring devices, e.g. colorimeters using colour charts
- G01J3/524—Calibration of colorimeters
-
- 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
- G01J2001/4242—Modulated light, e.g. for synchronizing source and detector circuit
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/12—Circuits of general importance; Signal processing
- G01N2201/124—Sensitivity
- G01N2201/1244—Ambient light detector, e.g. for invalidating
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Un dispositif (20) détermine l'intensité optique d'une lumière provenant d'un échantillon (22) situé sous une lumière ambiante (34) variant de manière périodique. Le dispositif (20) comprend une source de lumière (26a, 26b) à éclairage sélectif qui peut être commutée entre un état d'éclairage de l'échantillon (22) et un état éteint. Un détecteur (36) détecte les intensités optiques de l'échantillon (22) pendant une première pluralité de durées lorsque la source de lumière d'éclairage (26a, 26b) est allumée, pour produire une pluralité de mesures collectives de l'intensité de la lumière, et une seconde pluralité de durées sans les effets de la source de lumière (26a, 26b) pour produire une pluralité de mesures d'intensité de la lumière ambiante. Un processeur détermine quantitativement, à partir des multiples mesures collectives de l'intensité de la lumière et des multiples mesures de l'intensité de la lumière ambiante, la quantité d'intensité de chacune des mesures collectives de l'intensité lumineuse collective résultant de ladite source d'éclairage (26a, 26b).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US263595P | 1995-08-22 | 1995-08-22 | |
| US60/002,635 | 1995-08-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2229458A1 true CA2229458A1 (fr) | 1997-03-06 |
Family
ID=21701722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002229458A Abandoned CA2229458A1 (fr) | 1995-08-22 | 1996-08-22 | Procede et appareil de determination des caracteristiques d'un echantillon en presence de lumiere ambiante |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0866953A4 (fr) |
| JP (1) | JPH11511557A (fr) |
| AU (1) | AU738290B2 (fr) |
| CA (1) | CA2229458A1 (fr) |
| WO (1) | WO1997008523A1 (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3957457B2 (ja) * | 1998-05-19 | 2007-08-15 | シーフィード | マルチチャンネル光検出装置 |
| JP3727494B2 (ja) * | 1999-08-26 | 2005-12-14 | 富士写真フイルム株式会社 | 光計測方法および装置 |
| DE60039323D1 (de) | 1999-02-12 | 2008-08-14 | Fujifilm Corp | Verfahren und Vorrichtung zur Messung des von einer beleuchteten Probe ausgehenden Lichts mit Eliminierung des Einflusses von Hintergrundlicht |
| US20050279949A1 (en) * | 1999-05-17 | 2005-12-22 | Applera Corporation | Temperature control for light-emitting diode stabilization |
| DE10008517C2 (de) * | 2000-02-24 | 2002-09-26 | Eppendorf Ag | Optisches Meßsystem |
| US6658138B1 (en) * | 2000-08-16 | 2003-12-02 | Ncr Corporation | Produce texture data collecting apparatus and method |
| EP1203944B1 (fr) * | 2000-11-06 | 2006-03-01 | Hofstetter, Alfons, Prof.Dr.med. | Procédé d'identification de cellules turmorales |
| ES2171138B2 (es) * | 2000-12-11 | 2003-03-01 | Univ Santiago Compostela | Determinacion de biomasa y actividad biologica de organismos fototroficos en medio liquido y sobre materiales solidos a partir de la medida del color. |
| ES2185496B1 (es) * | 2001-07-17 | 2005-06-01 | Universidad Politecnica De Valencia | Equipo y metodo en linea para la deteccion, determinacion de la evolucion y cuantificacion de biomasa microbiana y otras sustancias que absorben a lo largo del espectro de luz durante el desarrollo de procesos biotecnologicos. |
| DE102005037842A1 (de) | 2005-08-04 | 2007-02-08 | Hach Lange Gmbh | Spektralphotometer |
| DE102009052159A1 (de) * | 2009-08-05 | 2011-02-10 | Georg Fritzmeier Gmbh & Co. Kg | Messeinrichtung zur Bestimmung eines Vegetationsindex-Werts (REIP) von Pflanzen |
| JP2016080563A (ja) | 2014-10-20 | 2016-05-16 | 日本光電工業株式会社 | 分析システム、分析装置 |
| GB201506992D0 (en) | 2014-11-14 | 2015-06-10 | Nplex Pty Ltd | A portable in-vitro diagnostic detector |
| EP3234526A1 (fr) * | 2014-12-18 | 2017-10-25 | Merck Patent GmbH | Spectrophotomètre et procédé d'exécution d'une mesure spectrophotométrique |
| JP7026337B2 (ja) * | 2017-08-29 | 2022-02-28 | パナソニックＩｐマネジメント株式会社 | 光観測装置 |
| JP2018116060A (ja) * | 2018-02-09 | 2018-07-26 | 日本光電工業株式会社 | 画像サイトメータ |
| US11679036B2 (en) * | 2019-04-12 | 2023-06-20 | Verily Life Sciences Llc | Determining diaper loading using color detection or activity state |
| US11607143B2 (en) | 2019-04-12 | 2023-03-21 | Verily Life Sciences Llc | Sensing physiological parameters through an article |
| CN114030640B (zh) * | 2021-11-05 | 2023-10-27 | 中国航空无线电电子研究所 | 用于对飞机驾驶舱光环境进行评估的方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4128760A (en) * | 1977-04-07 | 1978-12-05 | Ncr Corporation | Ambient light compensating circuit |
| US4694182A (en) * | 1986-02-27 | 1987-09-15 | Spectra-Physics, Inc. | Hand held bar code reader with modulated laser diode and detector |
| US4863265A (en) * | 1987-10-16 | 1989-09-05 | Mine Safety Appliances Company | Apparatus and method for measuring blood constituents |
| JP3015059B2 (ja) * | 1989-12-20 | 2000-02-28 | 株式会社トプコン | 光検出方法およびそのための装置 |
| US5173750A (en) * | 1990-02-06 | 1992-12-22 | Eastman Kodak Company | Reflection densitometer |
| US5070244A (en) * | 1990-05-07 | 1991-12-03 | The University Of Sydney | Gas detection by infrared absorption |
| US5376783A (en) * | 1992-09-16 | 1994-12-27 | Ophir Optronics Ltd. | Power meter with background subtraction |
-
1996
- 1996-08-22 CA CA002229458A patent/CA2229458A1/fr not_active Abandoned
- 1996-08-22 EP EP96928966A patent/EP0866953A4/fr not_active Withdrawn
- 1996-08-22 WO PCT/US1996/013523 patent/WO1997008523A1/fr active Application Filing
- 1996-08-22 JP JP9510404A patent/JPH11511557A/ja active Pending
- 1996-08-22 AU AU68536/96A patent/AU738290B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| EP0866953A4 (fr) | 2000-05-24 |
| AU738290B2 (en) | 2001-09-13 |
| WO1997008523A1 (fr) | 1997-03-06 |
| AU6853696A (en) | 1997-03-19 |
| EP0866953A1 (fr) | 1998-09-30 |
| JPH11511557A (ja) | 1999-10-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU738290B2 (en) | Method and apparatus for determining characteristics of a sample in the presence of ambient light | |
| US6836332B2 (en) | Instrument and method for testing fluid characteristics | |
| Blumberg et al. | The hematofluorometer. | |
| US7499154B2 (en) | Readhead for optical inspection apparatus | |
| CA1078641A (fr) | Colorimetre a impulsions lumineuses | |
| US20100167412A1 (en) | Sensor system for determining concentration of chemical and biological analytes | |
| US5266486A (en) | Method and apparatus for detecting biological activities in a specimen | |
| EP1582598B1 (fr) | Système optoélectronique rapid pour tests de diagnostic rapide | |
| Tymecki et al. | Paired emitter detector diode (PEDD)-based photometry–an alternative approach | |
| JPH0815016A (ja) | 光度計のマルチ検出器読取りヘッド | |
| EP0448923A1 (fr) | Méthode et dispositif pour la détection d'activités biologiques dans un échantillon | |
| US20130301051A1 (en) | Scattering light source multi-wavelength photometer | |
| JP2006520903A (ja) | 生化学的な色および増殖を測定するために比色手段を使用する微生物学的アナライザ | |
| GB2215838A (en) | Fluorimeters | |
| MXPA05000941A (es) | Medidor de arsenico. | |
| ES2929726T3 (es) | Normalización de la respuesta de un instrumento de fluorescencia mediante el uso de la respuesta espectral | |
| Chen et al. | A practical portable photometer using LEDs as inspection light source | |
| CA1201299A (fr) | Tete de lecture optique | |
| WO2020178557A1 (fr) | Dispositif de dosage | |
| WO1989007757A2 (fr) | Fluorimetres | |
| Santoso et al. | Evaluating of a Super Bright LED as a Spectrophotometer Light Source at The Clinical Laboratory | |
| Chaudhari et al. | A novel fiber optic sensor for the measurement of pH of blood based on colorimetry | |
| RU2188403C1 (ru) | Мини-рефлектометр-колориметр для анализа жидких и газообразных сред реагентными индикаторными бумажными тестами | |
| HU198793B (hu) | MÉRftEERENDEZÉS FOLYÉKONY KÖZEGEK FÉNYELNYELÉSÉNEK, ILLETVE EitNYSZÓRÁSÁNAK MEGHATÁROZÁSÁRA | |
| Turner | Review of Fluorometric Techniques and Instrumentation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |