(19)

(11)

EP 1 800 111 A1

(12)

(43) Date of publication: 27.06.2007 Bulletin 2007/26 (21) Application number: 05786336.7 (22) Date of filing: 23.09.2005

(51) International Patent Classification (IPC):  G01N 21/47(2006.01) G01J 3/02(2006.01) (86) International application number: PCT/GB2005/003678 (87) International publication number: WO 2006/032910 (30.03.2006 Gazette 2006/13)

(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: 25.09.2004 GB 0421374 (71) Applicant: The University of Surrey Guildford, Surrey GU2 7XH (GB)	(72) Inventors: STEVENS, Gary C. West Horsley, Surrey KT24 9JB (GB) HERMAN, Henryk Addlestone, Surrey KT15 2LN (GB) BAIRD, Patrick Dorking, Surrey RH4 1HZ (GB) (74) Representative: Wilson, Alan Stuart  Barker Brettell 138 Hagley Road Edgbaston GB-Birmingham B16 9PW GB-Birmingham B16 9PW (GB)