(19)

(11)

EP 1 228 365 A2

(12)

(88) Date of publication A3: 17.01.2002 (43) Date of publication: 07.08.2002 Bulletin 2002/32 (21) Application number: 00968503.3 (22) Date of filing: 29.09.2000

(51) International Patent Classification (IPC)7: G01N 30/88 (86) International application number: PCT/US0026/892 (87) International publication number: WO 0123/881 (05.04.2001 Gazette 2001/14)

(84) Designated Contracting States: AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT Designated Extension States: AL LT LV MK RO SI (30) Priority: 30.09.1999 US 409100 (71) Applicant: Rosemount Analytical Inc. Orrville, OH 44667-0901 (US)	(72) Inventor: LATTIMER, D., Robert Orrville, OH 44667 (US) (74) Representative: Cross, Rupert Edward Blount et al BOULT WADE TENNANT,Verulam Gardens70 Gray's Inn Road London WC1X 8BT London WC1X 8BT (GB)