ISO/TS TECHNICAL SPECIFICATION 13907 First edition 2012-09-01 Soil quality Determination of nonylphenols (NP) and nonylphenol- mono- and diethoxylates Method by gas chromatography with mass selective detection (GC-MS) Qualité du sol Détermination des nonyphénols (NP) et des mono- et di-éthoxylates de nonylphénol - Méthode par chromatographie en phase gazeuse avec deétection sélective de masse (CPG-SM) Reference number IS0/TS 13907:2012(E) ISO @ IS0 2012 IS0/TS 13907:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the addressbeloworIso'smemberbodyinthecountryoftherequester. ISO copyright office Case postale 56 : CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyright@iso.org Web www.iso.org Published in Switzerland @ IS0 2012 - All rights reserved IS0/TS 13907:2012(E) Contents Page Foreword ..iv Introduction ..V 1 Scope. ..1 2 Normative references ..1 3 Principle .1 4 Interferences .2 4.1 Interferences from sampling 2 4.2 Interferences by GC-MS .2 5 Reagents .2 6 Apparatus ..4 7 Sample storage and sample pretreatment ..5 7.1 Sample storage .5 7.2 Sample pretreatment 5 8 Procedure .5 8.1 Extraction 5 8.2 Concentration (optional) .7 8.3 Clean-up (optional), 7 8.4 Derivatization. .8 8.5 Blank test. .8 8.6 GC-MS analysis ..8 8.7 Calibration .9 8.8 Analysis of samples and identification .10 6 Calculation and expression of results ..10 9.1 General .10 9.2 Calibration .10 9.3 Calculation 11 10 Precision ..11 11 Test report ..11 Annex A (informative) Repeatability and reproducibility data .13 Annex B (informative) Example of chromatographic conditions and example of a chromatogram15 Bibliography .17 so.?Qail rights reserved ii