(19)

(11)

EP 0 842 432 A1

(12)

(43) Date of publication: 20.05.1998 Bulletin 1998/21 (21) Application number: 96922194.0 (22) Date of filing: 19.07.1996

(51) International Patent Classification (IPC):  G01N 33/ 53( . ) C12N 5/ 00( . ) C12N 9/ 90( . ) C12P 21/ 08( . ) C12Q 1/ 68( . ) G01N 33/ 573( . ) G01N 33/ 68( . ) C07K 16/ 18( . ) C12N 5/ 10( . ) C12N 15/ 02( . ) C12Q 1/ 533( . ) G01N 27/ 447( . ) G01N 33/ 577( . ) C12R 1/ 91( . ) (86) International application number: PCT/IB1996/000739 (87) International publication number: WO 1997/004315 (06.02.1997 Gazette 1997/07)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 24.07.1995 US 19950001391P (71) Applicant: Electrophoretics International Plc Cobham, Surrey KT11 3EP (GB)	(72) Inventor: HOCHSTRASSER, Denis CH-1211 Genève 14 (CH) (74) Representative: Lucas, Brian Ronald  Lucas & Co. 135 Westhall Road Warlingham Surrey CR6 9HJ Warlingham Surrey CR6 9HJ (GB)