(19)

(11)

EP 0 610 302 A1

(12)

(43) Date of publication: 17.08.1994 Bulletin 1994/33 (21) Application number: 92922136.0 (22) Date of filing: 30.10.1992

(51) International Patent Classification (IPC):  G01N 31/ 22( . ) G01N 21/ 29( . ) (86) International application number: PCT/GB1992/001986 (87) International publication number: WO 1993/009430 (13.05.1993 Gazette 1993/12)

(84) Designated Contracting States: DE FR GB (30) Priority: 30.10.1991 GB 19910023056 17.03.1992 GB 19920005919 (71) Applicant: CTS BIOCIDES LTD. Cambridge CB3 0DJ (GB)	(72) Inventors: HILL, Martyn, William 47 High Street Hinxton Essex CB10 1QY (GB) SHARMAN, Dennis, Frank A-8345 Oststeiermark (AT) RECTON, Peter, Dario Cambridgeshire PE17 6HJ (GB) (74) Representative: Perry, Robert Edward  GILL JENNINGS & EVERY Broadgate House 7 Eldon Street London EC2M 7LH London EC2M 7LH (GB)