ISO-11369-1997.pdf
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1、INTERNATIONAL STANDARD IS0 11369 First edition 1997-08-01 Water quality - Determination of selected plant treatment agents - Method using high performance liquid chromatography with UV detection after solid-liquid extraction Qua/it6 de I eau - Dosage de certains agents de traitement des p/antes - Mk
2、thode par chromatographie en phase liquide d haute performance (CLHP) avec dktection UV apA extraction solide liquide This material is reproduced from IS0 documents under International Organization for Standardization (ISO) Copyright License number lHSllCCll996. Not for resale. No part of these IS0
3、documents may be reproduced in any form, electronic retrieval system or otherwise, except as allowed in the copyright law of the country of use, or with the prior written consent of IS0 (Case postale 56,121l Geneva 20, Switzerland, Fax +41 22 734 IO 79), IHS or the IS0 Licenser s members. Reference
4、number IS0 11369:1997(E) Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 01:30:35 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11369:1997(E) Cont
5、ents 1 Scope 2 Interferences . 3 Nonnatives references 4 Principle . 5 Reagents . 6 Apparatus 7 Sampling and samples 6 Procedure 9 Calibration . 10 Evaluation 11 Expression of results . 12 Test report . 13 Precision data . Annex A (informative) Recovery rates Annex B (informative) Results of interla
6、boratory trial Page 1 2 2 2 2 3 4 5 10 13 14 14 14 15 17 0 IS0 1997 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 mkrofilm, without permission in writing fro
7、m the publisher. International Organization for Standardization Case postale 56 l CH-1211 Geneve 20 9 Switzerland Internet: oentratiso.oh X.400: o=oh; a=400net; p=iso; o=isoos; saxrrtral Printed in Switzerland ii Copyright International Organization for Standardization Provided by IHS under license
8、with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 01:30:35 MDTNo reproduction or networking permitted without license from IHS -,-,- Q IS0 IS0 11369:1997(E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standa
9、rds bodies (IS0 member bodies). The work of preparing International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organ
10、izations, governmental and non- governmental, in liaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are c
11、irculated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard fS0 11369 was prepared by Technical Committee ISO/TC 147, Water A: substituted anilide Copyright International Organizati
12、on for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 01:30:35 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 11369:1997(E) IS0 2 Interferences 2.1 Intetferences with the enrichment The c
13、ommercially available RP (reversed phase)-Cl8 materials are often of varying quality. Considerable batch-to-batch differences regarding quality and selectivity of this material even from one manufacturer are possible. The recovery may vary with the concentration. Co-extractants eluted from the sorbe
14、nt material can affect the blank and the recovery. Therefore the calibration and analysis are performed on exactly the same batch of sorbent. Also any UV-absorbing material occurring in the water which passes through the procedure and has a retention time similar to the standard will interfere. Susp
15、ended matter in the water sample may clog the packing. In this case the water sample is filtered through a glass fibre filter prior to the enrichment. 2.2 Interferences with the HPLC measurement Substances which absorb at the wavelengths of detection and have retention times similar to those of the
16、compounds to be investigated will interfere with the determination. This shall especially be taken into account when examining samples other than ground- and drinking water. 3 Normative references The following standards contain provisions which, through reference to this text, constitute provisions
17、 of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possiblity of applying the most recent editions of the standards ind
18、icated below. Members of IEC and IS0 maintain registers of currently valid International Standards. IS0 5667-l :1980, Water quality - Sampling - Part 1: Guidance on the design of sampling programmes IS0 5667-2 : 1991, Water quality - Sampling - Part 2: Guidance on sampling techniques IS0 5667-3: 199
19、4, Water quality - Sampling - Part 3: Guidance on the preservation and handling of samples IS0 8466-l: 1990, Water quality - Calibration and evaluation of analytical methods and estimation of performance characteristics - Part 1: Statistical evaluation of the linear calibration function. lSO/TR 1353
20、0:-l , Water quality - General guidance to analytical quality control for water analysis 4 Principle The plant treatment substances in the water sample are extracted by solid-liquid extraction on RP-Cl8 material (RP = reversed phase), eluted with a solvent and then separated, identified and quantifi
21、ed by high performance liquid chromatography (HPLC) using UV detection. 5 Reagents 5.1 General requirements Water, solvents and reagents shall be of sufficient purity (e.g. residue grade or HPLC grade) as far as available and shall not contain any measurable UV absorbing substances interfering with
22、the compounds of interest. 5.2 Nitrogen, high purity, for drying solvents and, if need be, for concentration by evaporation of the eluates. 5.3 Helium, high purity, for degassing HPLC solvents (see also 6.131 I) To be published. 2 Copyright International Organization for Standardization Provided by
23、IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/19/2007 01:30:35 MDTNo reproduction or networking permitted without license from IHS -,-,- IS0 IS0 11369:1997(E) 5.4 Mineral acid, e. g. phosphoric acid, c(H,PO,) = 1 mol/l. 5.5 Sodium hydroxide solution c(N
24、aOH) = 1 mol/l. 5.6 RP-Cl8 SOrbetIt, for the solid-phase extraction. For quality and selectivity of the material see 2.1. NOTE: Other solid-phase adsorbents may be used, if the performance is comparable to this material and if it has been proved suitable according to 2.1. 5.7 Solvents, e. g. methano
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