ISO/TS TECHNICAL SPECIFICATION 17379-2 First edition 2013-07-15 Water quality Determination of selenium - Part 2: Method using hydride generation atomic absorption spectrometry (HG- AAS) Qualité de I'eau- Dosage du sélénium - Partie 2: Methode par spectromeétrie d'absorption atomique a géneration d'hydrures (HG-AAS) Reference number ISO/TS17379-2:2013(E) ISO CopyrightInternationalOrganization for Standardization @ IS0 2013 ed without license from IHS Not for Resale IS0/TS 17379-2:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 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. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2013 - All rights reserved or networking permited without license from IHS Not for Resale IS0/TS 17379-2:2013(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Principle 4 Interferences ..2 5 Reagents and standards .3 6 ..5 Apparatus 7 Sampling and sample preparation .6 7.1 Sampling technique 7.2 Pre-reduction ..6 8 Instrumental set-up ..7 9 Procedure .7 9.1 General requirements .7 9.2 Analysis using the method of standard calibration 7 9.3 Analysis using the standard addition method of calibration ..8 10 Calibration and data analysis ..8 10.1 General requirements .8 10.2 Calculation using the calibration curve. ..9 10.3 Calculation using the standard addition method .9 11 Expression of results .9 12 Test report ..10 Annex A (informative) Additional information ..11 Annex B (informative) Schematic flow diagram and signal response ..12 Annex C (informative) Example of enrichment technique ..15 Annex D (informative) Performance data ..17 Bibliography .18 iii thout license from IHS Not for Resale