Patent · US Expired

Capillary made of polymer material having a modified inside surface and process for its production

US5888366A · kind A · utility

3Cited by

5References

24Claims

0Family size

Assignee

Hewlett-Packard Company, L.P. · US

Inventors

Heinz Engelhardt · Riegelsberg, DE
Thomas Schmitt · Lebach, DE
Konstantin Shoiket · Altensteig, DE

Key dates

Filing date	Aug 19, 1997
Grant date	Mar 30, 1999
Priority date	—
Expiry date	Aug 19, 2017

Classification

Technology area (CPC G)Physics
CPC primaryG01N27/44704
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A capillary made of plastics material that is suited for use in capillary electrophoresis. The capillary has its inner surface chemically modified for the generation of properties different from those of the original plastic capillary material. In the process of producing such capillaries, a premanufactured capillary is treated with a chemical reagent which generates functional groups directly on the capillary surface or generates attachment sites, on the capillary surface to which functional groups are later bonded.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.