(19)

(11)

EP 1 068 349 A1

(12)

(43) Date of publication: 17.01.2001 Bulletin 2001/03 (21) Application number: 00901762.5 (22) Date of filing: 02.02.2000

(51) International Patent Classification (IPC)7: C12Q 1/68 (86) International application number: PCT/GB0000/305 (87) International publication number: WO 0046/401 (10.08.2000 Gazette 2000/32)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: AL LT LV MK RO SI (30) Priority: 03.02.1999 GB 9902422 (71) Applicant: LGC (Teddington) Limited Teddington,Middlesex TW11 0LY (GB)	(72) Inventor: MCDOWELL, David, Gordon Epsom, Surrey KT19 7EF (GB) (74) Representative: Heaton, Joanne Marie et al Stevens, Hewlett & Perkins 1 St. Augustine's Place Bristol BS1 4UD Bristol BS1 4UD (GB)