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1. WO2006092252 - HIGH TEMPERATURE ATR PROBE

Publication Number WO/2006/092252
Publication Date 08.09.2006
International Application No. PCT/EP2006/001756
International Filing Date 27.02.2006
IPC
G01N 21/55 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
55Specular reflectivity
G01N 21/85 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
85Investigating moving fluids or granular solids
G01N 21/09 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
01Arrangements or apparatus for facilitating the optical investigation
03Cuvette constructions
09adapted to resist hostile environments or corrosive or abrasive materials
G01N 21/35 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
CPC
G01N 21/09
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
01Arrangements or apparatus for facilitating the optical investigation
03Cuvette constructions
09adapted to resist hostile environments or corrosive or abrasive materials
G01N 21/3577
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35using infra-red light
3577for analysing liquids, e.g. polluted water
G01N 21/552
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
55Specular reflectivity
552Attenuated total reflection
G01N 21/8507
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
85Investigating moving fluids or granular solids
8507Probe photometers, i.e. with optical measuring part dipped into fluid sample
Applicants
  • ASTRAZENECA UK LIMITED [GB]/[GB] (AllExceptUS)
  • ETIENNE, Stephen [GB]/[GB] (UsOnly)
  • WEAVER, Ian [GB]/[GB] (UsOnly)
Inventors
  • ETIENNE, Stephen
  • WEAVER, Ian
Agents
  • ASTRAZENECA
Priority Data
0504148.801.03.2005GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) HIGH TEMPERATURE ATR PROBE
(FR) SONDE ATR A HAUTE TEMPERATURE
Abstract
(EN)
The invention provides an ATR probe (10), comprising an elongate body with a head (100) at one end, which probe is adapted for use with hot sample fluids and has particular benefits when utilising infra-red radiation in the mid-infra-red region ('MIR') of the spectrum; generally accepted as extending over the wavelength range from 3-1 Oμm. In order to address difficulties which arise when conventional ATR materials are utilised to construct such probes, the ATR probe of the invention comprises a hollow waveguide (60,70) disposed in a region of the body exposed to relatively high temperatures, and a solid fibre (20,30) disposed in a region of the body exposed to relatively low temperatures. The waveguide and the fibre are arranged to sequentially convey infra-red radiation to and/or from the probe head. The hollow waveguide preferably comprises a light pipe. Also provided is a diamond ATR head constructed and configured to be utilised at high temperatures, and which enhances the chemical resistance of the ATR probe as a whole to potentially corrosive materials comprised in the sample fluids.
(FR)
L'invention concerne une sonde à réflexion totale atténuée (ATR) comprenant un corps allongé doté d'une tête à une extrémité. Cette sonde est conçue pour être utilisée avec des échantillons fluidiques très chauds et présente des avantages particuliers lors d'utilisation de rayonnements infrarouges situés dans la zone de rayonnement infrarouge moyen (MIR) du spectre, généralement acceptée comme s'étendant dans la plage de longueurs d'onde allant de 3 à 10 µm. Afin de surmonter les difficultés qui surviennent lors d'utilisation de matériaux ATR classiques utilisés pour construire de telles sondes, la sonde ATR de l'invention comprend un guide d'ondes creux monté dans une zone du corps exposé à des températures relativement élevées, et une fibre solide disposée dans la zone du corps exposée à des températures relativement faibles. Le guide d'ondes et la fibre sont agencés pour transmettre séquentiellement des rayonnements infrarouges jusqu'à la tête de la sonde et/ou à partir de la tête de la sonde. Le guide d'onde creux comprend de préférence un conduit léger. L'invention concerne également une tête ATR en diamant construite et conçue pour être utilisée à hautes températures et permettant d'améliorer la résistance chimique de la sonde ATR dans son ensemble à des matière potentiellement corrosives contenues dans les échantillons fluidiques.
Also published as
EP6707277
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