For in-line absorbance or fluorescence measurements, Avantes offers the in-line flow cells. They are available for tubing diameters of 1/4, 1/2 and 1 inch. The flow cells consist of Swagelok union cross tube fittings and two UV/VIS/NIR collimating lenses.

The optical path depends on the size of the flow cell: the 1/4” version has an optical path of 5 mm, the 1/2” of 10 mm and the 1” version 20 mm. They feature SMA-905 connectors for easy coupling to any of our wide range of fiber-optic cables or bundles.

All flow cells have variable focusing to optimize light throughput over the spectral range. They are also available in high-temperature configurations (up to 200°C). Special flow cells for gass and liquids are also available and are designed to withstand pressures up to 100 bar.

Product Information

¼" flow cell ½" flow cell 1" flow cell
Optical path 5 mm 10 mm 20 mm
Sample volume 62 µl 124 µl 248 µl
Wavelength range 200-2500 nm 200-2500 nm 200-2500 nm
Fiber connection 2x SMA-905 connectors 2x SMA-905 connectors 2x SMA-905 connectors
Collimating optics Plano Convex, focal length 8.7 mm Plano Convex, focal length 8.7 mm Plano Convex, focal length 8.7 mm
Max. temperature 80°C (HT version up to 200°C available on request) 80°C (HT version up to 200°C available on request 80°C (HT version up to 200°C available on request
Max. pressure 10 bar (special gas and liquid flow cell up to 100 bar available) 10 bar (special gas and liquid flow cell up to 100 bar available) 10 bar (special gas and liquid flow cell up to 100 bar available)
Material Stainless steel for the fitting, black anodized aluminum for the SMA-905 connectors Stainless steel for the fitting, black anodized aluminum for the SMA-905 connectors Stainless steel for the fitting, black anodized aluminum for the SMA-905 connectors
Overall dimensions 55 x 45 x 15 mm 72 x 50 x 22 mm 98 x 60 x 38 mm
Flowcell-1/4" Flow cell 1/4" with variable SMA adapter, 5 mm path length, incl. 2 UV/VIS/NIR lenses
Flowcell-1/4”-1 Flow cell ¼” with variable SMA adapter, 1 mm path length, incl. 2 UV/VIS/NIR lenses
Flowcell-1/2” Flow cell ½” with variable SMA adapter, 10 mm path length, incl. 2 UV/VIS/NIR lenses
Flowcell-1” Flow cell 1” with variable SMA adapter, 20 mm path length, incl. 2 UV/VIS/NIR lenses
Flowcell-1/4”-FL Fluorescence Flow cell ¼” with 2 SMA adapters, incl. 1 UV/VIS/NIR lens
Flowcell-1/4”-5-HPHT Flow cell for gasses and liquids, ¼”, 5 mm optical path length with SMA adapter, including 2 UV/VIS/NIR lenses, high pressure 100 bar, high temp 200°C.
-HT High temperature version for up to 200°C

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