(19)

(11)

EP 1 198 714 A2

(12)

(88) Date of publication A3: 04.10.2001 (43) Date of publication: 24.04.2002 Bulletin 2002/17 (21) Application number: 00941317.0 (22) Date of filing: 09.06.2000

(51) International Patent Classification (IPC)7: G01N 35/08 (86) International application number: PCT/US0015/950 (87) International publication number: WO 0077/120 (21.12.2000 Gazette 2000/51)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 10.06.1999 US 138846 P (71) Applicant: UNIVERSITY OF WYOMING RESEARCH CORPORATION, doing business as, WESTERN RESEARCH INSTITUTE Laramie, WY 82070 (US)	(72) Inventors: SCHABRON, John, F. Laramie, WY 82070 (US) ROVANI, Joseph, F. Laramie, WY 82070 (US) (74) Representative: Kador & Partner  Corneliusstrasse 15 80469 München 80469 München (DE)