(19)
(11) EP 1 438 575 A2

(12)

(88) Date of publication A3:
05.06.2003

(43) Date of publication:
21.07.2004 Bulletin 2004/30

(21) Application number: 02782217.0

(22) Date of filing: 23.10.2002
(51) International Patent Classification (IPC)7: G01N 31/00
(86) International application number:
PCT/US2002/033945
(87) International publication number:
WO 2003/036258 (01.05.2003 Gazette 2003/18)
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 23.10.2001 US 335254 P

(71) Applicant: Waters Investments Limited
Milford, MA 01757 (US)

(72) Inventors:
  • XIE, Rong
    Hudson, MA 01749 (US)
  • BRUN, Yefim
    Hopkington, MA 01748 (US)
  • GORENSTEIN, Marc, V.
    Needham, MA 02492 (US)

(74) Representative: Vossius, Corinna et al
Geibelstrasse 6
81679 München
81679 München (DE)

   


(54) SYSTEM AND METHOD FOR DETERMINING RADIUS OF GYRATION, MOLECULAR WEIGHT, AND INTRINSIC VISCOSITY OF A POLYMERIC DISTRIBUTION USING GEL PERMEATION CHROMATOGRAPHY AND LIGHT-SCATTERING DETECTION