ISO INTERNATIONAL STANDARD 13913 Firstedition 2014-02-01 Soil quality Determination of selected phthalates using capillary gas chromatography with mass spectrometric detection (GC/MS) Qualité du sol - Deétermination de phthalates sélectionnés en utilisant la chromatographie gazeuse capillaire avec détection par spectrométrie de masse Reference number IS0 13913:2014(E) ISO @IS02014 mitted without license from IHS Not for Resale IS0 13913:2014(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2014 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 2014 - All rights reserved or networking permited without license from IHS Not for Resale IS0 13913:2014(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references 3 Principle ..2 4 Interferences .2 4.1 General. .2 4.2 Interferences during sampling .2 4.3 Cross contamination .2 4.4 Interferences in gas chromatography .2 5 Reagents .2 5.1 General .2 6 Apparatus 4 6.1 General .4 7 Sampling and sample storage .6 8 Procedure .6 8.1 Preparation of glass apparatus ..6 8.2 Drying of the sample. .6 8.3 Extraction 7 8.4 Clean-up. 7 8.5 Gas chromatography .8 8.6 Blank monitoring ..8 8.7 Identification of individual compounds ..8 9 Calibration ..9 9.1 General ..9 9.2 Calibration with internal standard .9 9.3 Verification of calibration .10 10 Calculation ..11 11 Expression of results ..12 12 Precision .12 13 Test report ..12 Annex A (informative) Repeatability and reproducibility data ...13 Annex B (informative) Example of a reference solution for multipoint calibration ..16 Annex C (informative) Examples for gas chromatographic conditions ..18 Annex D (informative) Fiow scheme of the determination of phthaiates ..20 Bibliography ..21 ii ed without license from IHS Not for Resale