BS ISO BRITISH STANDARD 24293:2009 Water quality - Determination of individual isomers of nonylphenol Method using solid phase extraction (SPE) and gas chromatographyl mass spectrometry (GC/MS) ICS 13.060.50 BSi NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW British Standards BSISO24293:2009 National foreword ThisBritish Standard is the UKimplementation of ISO 24293:2009 The UK participation in its preparation was entrusted to Technical Committee EH/3/2, Physical chemical and biochemical methods. A list of organizations represented on this committee can be obtained on requestto its secretary. This publication does not purport to include all the necessary provisions of a contract.Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard Amendments/corrigenda issued sincepublication was published under the authority of the Standards Comments Policy and Strategy Date Committee on 31 August 2009 BSI 2009 ISBN 978 0 580 55676 0 BS ISO 24293:2009 ISO INTERNATIONAL STANDARD 24293 First edition 2009-07-15 Water quality Determination of individual isomers of nonylphenol Method usingsolidphaseextraction (SsPE) and gas chromatography/mass spectrometry (GC/MS) Qualite de I'eauDetermination des isomeres individuels de nonylphenolMethodepar extraction en phase solide (SPE)et chromatographie enphasegazeuse/spectrometriedemasse (GC/MS) Reference number ISO 24293:2009(E) 4 ISO @ISO2009 BSISO 24293:2009 ISO 24293:2009(E) PDFdisclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ShauKeeLibrary,HKUST COPYRIGHTPROTECTEDDOCUMENT @ISO2009 Lee All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, copy: IsO's member body in the country of the requester. ISO copyright office Case postale 56: CH-1211 Geneva 20 Licensed Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ii @ IsO 2009 - All rights reserved BSISO24293:2009 ISO24293:2009(E) StandardsInstitution2013 Contents Page Foreword iv Introduction 1 Scope 2 Normative references 3 Principle 4 Reagents 5 Apparatus (5) 6 Sampling and sample pretreatment.. Versioncorrectasof03/01/2015, 7 Procedures ... 7.1 Solid phase extraction.. 7.2 Clean up ... 7.3 GC/MS operatingconditions 7.4 Blankdetermination 7.5 Identification... 8 Calibration 8.1 General requirements.. 8.2 Calibration over the total procedure with internal standard 9 Calculation... 9.1 Calculation of contribution of individual isomers of nonylphenol in technical mixture... 9.2 Calculationof relativeresponsefactorof individual isomersofnonylphenol. 9.3 Quantificationof individual isomersofnonylphenolusingrelativeresponsefactor 9.4 Calculation of internal standard recovery.. 10 Expressionofresults 10 11 Test report.. 10 Annex A (informative)Sorbent example. Annex B (informative) Suitable capillary column... 12 AnnexC (informative)Examples of chromatograms. 13 AnnexD (informative)Example of FIDchromatogramandcomposition ratio (%)of isomers in 4-nonylphenol standard...