(19)

(11)

EP 1 810 006 A1

(12)

(43) Date of publication: 25.07.2007 Bulletin 2007/30 (21) Application number: 05810637.8 (22) Date of filing: 11.11.2005

(51) International Patent Classification (IPC):  G01N 21/25(2006.01) (86) International application number: PCT/GB2005/004368 (87) International publication number: WO 2006/051319 (18.05.2006 Gazette 2006/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR (30) Priority: 12.11.2004 GB 0425114 (71) Applicant: SMCS Limited Baldock Hertfordshire SG7 6BG (GB)	(72) Inventor: HUNTER, Christopher Hertfordshire SG7 6DF (GB) (74) Representative: Harrison Goddard Foote  Belgrave Hall Belgrave Street Leeds , Yorkshire LS2 8DD Leeds , Yorkshire LS2 8DD (GB)