(19)

(11)

EP 0 835 441 A1

(12)

(43) Date of publication: 15.04.1998 Bulletin 1998/16 (21) Application number: 96921001.0 (22) Date of filing: 28.06.1996

(51) International Patent Classification (IPC):  G01N 27/ 12( . ) G01N 33/ 00( . ) (86) International application number: PCT/GB1996/001554 (87) International publication number: WO 1997/001753 (16.01.1997 Gazette 1997/04)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.06.1995 GB 19950013217 (71) Applicant: AROMASCAN PLC Crewe, Cheshire CW1 1WZ (GB)	(72) Inventors: PAYNE, Peter, Alfred Cheshire SK7 3LX (GB) PERSAUD, Krishna, Chandra Manchester M21 7NT (GB) DOWDESWELL, Richard, Mark Manchester M8 4RA (GB) AMRANI, Mohammed, El Hassan Manchester M13 9UD (GB) (74) Representative: McNeight, David Leslie, et al  McNeight & Lawrence Regent House Heaton Lane Stockport Cheshire SK4 1BS Stockport Cheshire SK4 1BS (GB)