(19)

(11)

EP 0 922 212 A1

(12)

(43) Date of publication: 16.06.1999 Bulletin 1999/24 (21) Application number: 97936772.0 (22) Date of filing: 13.08.1997

(51) International Patent Classification (IPC):  G01N 27/ 12( . ) G01N 1/ 10( . ) G01N 27/ 00( . ) G01N 1/ 00( . ) G01N 1/ 28( . ) (86) International application number: PCT/GB1997/002171 (87) International publication number: WO 1998/009148 (05.03.1998 Gazette 1998/09)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 28.08.1996 GB 19960017914 23.05.1997 GB 19970010531 (71) Applicant: AROMASCAN PLC Crewe, Cheshire CW1 1WZ (GB)	(72) Inventor: GRINDROD, David Market Drayton, Shropshire TF1 3UB (GB) (74) Representative: Lambert, Ian Robert, et al  McNeight & Lawrence, Regent House, Heaton Lane Stockport, Cheshire SK4 1BS Stockport, Cheshire SK4 1BS (GB)