Non-invasive measurement of optically active compounds

Non-invasive measurement of optically active compounds

The concentration of an optically active compound in a sample is determined by measuring the entire polarisation state of the sample and comparing it with that of a sample having a known concentration of the compound. The apparatus comprises a source of unpolarised light (10), a device (12) for mani...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PEZZANITI, LARRY, LINDBERG, JOHN M
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
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Beschreibung
Zusammenfassung:The concentration of an optically active compound in a sample is determined by measuring the entire polarisation state of the sample and comparing it with that of a sample having a known concentration of the compound. The apparatus comprises a source of unpolarised light (10), a device (12) for manipulating its polarisation state, a sample holder (14), a second device (16) for manipulating the polarisation state of light passing through it, a light detector (18), and an analyser (20) which correlates a received signal with the concentration of the optically active compound. Devices (10,12,14,16,18) are optically aligned.