(19)

(11)

EP 0 103 628 A1

(12)

(43) Date of publication: 28.03.1984 Bulletin 1984/13 (21) Application number: 83901291.0 (22) Date of filing: 10.03.1983

(51) International Patent Classification (IPC):  C12Q 1/ 00( . ) G01N 33/ 72( . ) G01N 33/ 52( . ) (86) International application number: PCT/US1983/000315 (87) International publication number: WO 1983/003254 (29.09.1983 Gazette 1983/23)

(84) Designated Contracting States: AT BE CH DE FR GB LI LU NL SE (30) Priority: 11.03.1982 US 19820357042 (71) Applicant: BABSON, Arthur Chester NJ 07930 (US)	(72) Inventor: BABSON, Arthur Chester NJ 07930 (US) (74) Representative: Jones, Alan John, et al  CARPMAELS & RANSFORD 43 Bloomsbury Square London, WC1A 2RA London, WC1A 2RA (GB)