(19)

(11)

EP 0 805 979 A1

(12)

(43) Date of publication: 12.11.1997 Bulletin 1997/46 (21) Application number: 95941309.0 (22) Date of filing: 08.12.1995

(51) International Patent Classification (IPC):  G01N 27/ 447( . ) (86) International application number: PCT/SE1995/001482 (87) International publication number: WO 1996/018099 (13.06.1996 Gazette 1996/27)

(84) Designated Contracting States: CH DE FR GB IT LI SE (30) Priority: 08.12.1994 SE 19940004274 (71) Applicant: Pharmacia Biotech AB 751 82 Uppsala (SE)	(72) Inventor: ANDERSSON, Bengt-Göran S-191 40 Sollentuna (SE) (74) Representative: Widén, Björn, et al  Pharmacia & Upjohn AB, Patent Department 751 82 Uppsala 751 82 Uppsala (SE)