Method of and a capillary flow cell for analysing fluid samples

A method of analyzing fluid samples using a bent capillary flow cell, in which method an external UV/visible light ray beam is directed into an elongated section of the flow cell from a bend thereof, this incident light ray beam is limited to a solid acceptance angle OMEGA . This solid acceptance an...

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Bibliographic Details
Main Authors VAN SOEST; REMCO E. J, CHERVET; JEAN-PIERRE
Format Patent
LanguageEnglish
Published 13.06.1995
Edition6
Subjects
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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Summary:A method of analyzing fluid samples using a bent capillary flow cell, in which method an external UV/visible light ray beam is directed into an elongated section of the flow cell from a bend thereof, this incident light ray beam is limited to a solid acceptance angle OMEGA . This solid acceptance angle OMEGA is determined such that light rays which enter the elongated section traverse predominantly the longitudinal axis thereof, i.e. propagate through the fluid sample, providing an improved S/N ratio. Lens means, such as ball lenses, may be used at the entrance and exit side of the elongated section. A bent capillary flow cell is provided, in which the elongated section deviates by an angle psi from a line N perpendicular to a flat side face of a holding template.
Bibliography:Application Number: US19930151165