ISO INTERNATIONAL STANDARD 21458 First edition 2008-12-15 Water quality Determination of glyphosate and AMPA Method using high performance liquid chromatography (HPLC) and fluorometric detection Qualite de I'eau— Dosage du glyphosate et de I'AMPA - Méthode par chromatographie liquide a haute performance (CLHP) et deétection fluorimetrique Reference number ISO 21458:2008(E) @ ISO 2008 y IHS under ted without license from IHS Not for Resale ISO 21458:2008(E) PDF disclaimer 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 IsO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below COPYRIGHT PROTECTED DOCUMENT @ ISO2008 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, 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 copyright@iso.org Web www.iso.org Published in Switzerland ISO2008-All rights reserved Tby IHS unde I without license from IHS Not for Resale ISO 21458:2008(E) Contents Page Foreword 1 Scope 2 Normative reference 3 Principle. 4 Interferences 5 Reagents. 6 Apparatus 7 Sampling .... 8 9 Calibration 10 Evaluation. 11 Expression of results 12 Test report .. Annex A (informative) Internal standard generally used.. Annex B (informative) Precision data.. Annex C (informative) Chromatograms .. Bibliography.... Copyright internatinal Oorganizaio for standardizalion ghts reserved ii se from IHS Not for Resale