ISO/TS TECHNICAL 19620 SPECIFICATION First edition 2018-01-15 Water quality - Determination of arsenic(III) and arsenic(V) species - Method using high performance liquid chromatography (HPLC) with detection by inductively coupled plasma mass spectrometry (IcP- Ms) or hydride generation atomic fluorescence spectrometry (HG-AFS) QualitedeI'eauDeterminationdesformeschimiques(lll)et(V) d'arsenic-Methode par chromatographieenphase liquide ahaute performance (HPLC)avecdétectionparspectrométriedemasse par torche a plasma (ICP-MS) ou generation d'hydrure fluorescence atomique (HG-AFS) Reference number ISO/TS19620:2018(E) ISO @ IS0 2018 IS0/TS19620:2018(E) COPYRIGHTPROTECTEDDOCUMENT IS02018,Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISO's member body in the country of the requester. ISOcopyrightoffice Ch.de Blandonnet8.CP401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +4122749 0947 [email protected] www.iso.org ii @ IS0 2018-All rights reserved IS0/TS19620:2018(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references ..1 3 Terms and definitions ..2 4 Principle .2 5 Interferences .3 6 Apparatus ..3 7 Reagents and standards. .4 7.1 General requirements .4 7.10 Standard substances 4 7.11 Stocksolutions1oo0mg/l .4 7.12 Singlecomponent stock solutions 10mg/l .5 7.13 Calibration solutions. .5 7.14 Eluents. ..6 8 Sampling,preservationandstorageofsamples .6 9 Procedure .6 9.1 HPLCinstrumentoptimization .6 9.2 .7 Calibration 9.3 Samplemeasurement .7 10 Expression of results .7 11 Test report .8 AnnexA (normative)Detection using inductively coupled plasma mass spectrometry (icP MS) .9 AnnexB (normative)Detection using hydridegenerationatomicfluorescence (HG-AFS) .20 AnnexC (informative)Determinationoforganicarsenicspecies ..27 Annex D (informative)Storage andpreservation ofarsenic species in water samples ..29 Bibliography .40 @ IS0 2018 - All rights reserved ili