Novel polymeric capillary test tubes for X-ray scattering and general laboratory use

Mario Giardini, Mario Di Cecio, Mattia Pinelli, Mario Corti, Laura Cantù

Research output: Contribution to conferencePosterpeer-review


Thin-walled (50-100 um) polymeric capillary test tubes, produced within a cooperation between INFM and Enki S.r.l., a specialized Company active in the field of plastic microextrusion, will be presented. They are intended as a cost-effective replacement for glass capillary test tubes, microvials and microreactors, whenever biocompatibility, unbreakability ease of handling, reopenability, safe sample recovery, X-ray transaparency and good optical transmission are desired.
The tubes can be used for liquid and powder samples. A tightly fitting PTFE disposable piston is integrated in every single tube. The piston-tube unit can therefore be handled as a microsyringe or micropipette, thus allowing full sample manipulation (filling, recovery) without the aid of external pipette systems. The ends can be plugged and unplugged using simple end caps. The tubes have been tested at ESRF (beamline ID2) for small-angle X-ray scattering measurements. Because of the extremely low wall thickness, tested at 1Å wavelength, the absolute scattering from the tube is extremely low, and the tube transparency to the beam is near 100%. The consistent geometry allows excellent intertube and intratube repeatibility of the scattering properties. No radiation damage is evident even after prolonged exposure to the beam. Production costs are fully compatible with mass production. Regular introduction on the market is scheduled within mid-2004. To this respect, the reciprocal know-how transfer between INFM and the industrial world can be considered as totally successful.
Original languageEnglish
Publication statusPublished - 9 Jun 2004
EventINFMeeting 2004 - Genova, Italy
Duration: 8 Jun 200410 Jun 2004


ConferenceINFMeeting 2004


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