Capillary tube flow cell

Details Capillary tube flow cell Capillary tube flow cell

2004-05-12

2010-02-23

Stafira, Michael P (Department: 2886)

Optics: measuring and testing

Sample, specimen, or standard holder or support

Fluid containers

C356S244000

Reexamination Certificate

active

07667837

ABSTRACT:
Provided is a capillary tube flow cell used in analyses at very low flow rates and, particularly, in liquid chromatographic analyses. To ensure that high detection sensitivity and low noise can be realized, a flow cell which houses a liquid sample and exposes the liquid sample to radiant light for analysis purposes comprises a capillary tube which has a bent portion for incident light, a bent portion for emergent light and a linear passage of appropriate length formed between the bent portions, a passage portion of the capillary tube being inserted into a slit and the slit being provided with a light pass preventing portion.

REFERENCES:
patent: 4867559 (1989-09-01), Bach
patent: 5184192 (1993-02-01), Gilby et al.
patent: 5274227 (1993-12-01), Moring
patent: 6281975 (2001-08-01), Munk
patent: 793 098 (1997-09-01), None
patent: 2001-194294 (2001-07-01), None
patent: 2002-267597 (2002-09-01), None

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