(19)

(11)

EP 2 686 687 A2

(12)

(88) Date of publication A3: 08.11.2012 (43) Date of publication: 22.01.2014 Bulletin 2014/04 (21) Application number: 12716669.2 (22) Date of filing: 16.03.2012

(51) International Patent Classification (IPC):  G01N 33/68(2006.01) (86) International application number: PCT/IN2012/000184 (87) International publication number: WO 2012/123971 (20.09.2012 Gazette 2012/38)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 16.03.2011 IN DE07372011 (71) Applicant: Council of Scientific & Industrial Research New Delhi 110 001 (IN)	(72) Inventors: SARKAR, Dhiman Pune 411008, Maharashtra (IN) SARKAR, Sampa Pune 411008, Maharashtra (IN) (74) Representative: Jakobsson, Jeanette Helene et al Awapatent AB P.O. Box 5117 200 71 Malmö 200 71 Malmö (SE)