DIN EN 15452-2008 Fertilizers - Determination of chelating agents - Determination of iron chelated by o p- EDDHA by reversed phase HPLC German version EN 15452 2008《肥料 螯合剂的测定 用反相高效.pdf
《DIN EN 15452-2008 Fertilizers - Determination of chelating agents - Determination of iron chelated by o p- EDDHA by reversed phase HPLC German version EN 15452 2008《肥料 螯合剂的测定 用反相高效.pdf》由会员分享,可在线阅读,更多相关《DIN EN 15452-2008 Fertilizers - Determination of chelating agents - Determination of iron chelated by o p- EDDHA by reversed phase HPLC German version EN 15452 2008《肥料 螯合剂的测定 用反相高效.pdf(15页珍藏版)》请在麦多课文档分享上搜索。
1、November 2008DEUTSCHE NORM English price group 10No part of this standard may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS 65.080!$Rg“1476897www
2、.din.deDDIN EN 15452Fertilizers Determination of chelating agents English version of DIN EN 15452:2008-11Dngemittel Bestimmung von Chelatbildnern Bestimmung von Eisen-chelatisiertem o,p-EDDHA mit Umkehrphasen HPLCEnglische Fassung DIN EN 15452:2008-11SupersedesDIN CEN/TS 15452:2007-01www.beuth.deDoc
3、ument comprises 15 pagesDetermination of iron chelated by o,p-EDDHA by reversed phase HPLCDIN EN 15452:2008-11 2 National foreword This standard has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials” (Secretariat: DIN, Germany) under the mandate M/335. The responsible
4、 German body involved in its preparation was the Normenausschuss Lebensmittel und landwirtschaftliche Produkte (Food and Agricultural Products Standards Committee), Technical Committee NA 057-03-02 AA Dngemittel. The DIN Standard corresponding to the International Standard referred to in the EN is a
5、s follows: ISO 5725-2 DIN ISO 5725-2 Amendments This standard differs from DIN CEN/TS 15452:2007-01 (German version only) as follows: a) In subclause 5.6, a note concerning the complexometric purity of the standard and its determination have been added. b) In clause 6, a new subclause 6.1 “General”
6、has been added and the subsequent subclauses have been renumbered. c) In Annex C (informative), the complete designation for HEDTA has been corrected. d) The standard has been editorially revised. Previous editions DIN CEN/TS 15452: 2007-01 National Annex NA (informative) Bibliography DIN ISO 5725-2
7、, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15452July 2008ICS 65.080 Supersedes CEN/TS 15452:2006 English Vers
8、ionFertilizers - Determination of chelating agents - Determination ofiron chelated by o,p-EDDHA by reversed phase HPLCEngrais - Dosage des agents chlatants - Dosage du ferchlat par o,p-EDDHA par chromatographie liquide haute performance polarit de phase inverseDngemittel - Bestimmung von Chelatbildn
9、ern -Bestimmung von Eisen-chelatisiertem o,p-EDDHA mitUmkehrphasen HPLCThis European Standard was approved by CEN on 30 May 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard
10、 without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other langu
11、age made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,F
12、rance, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR
13、NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15452:2008: EEN 15452:2008 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Principle4 4 Interferenc
14、es 4 5 Reagents.4 6 Apparatus .5 7 Sampling and sample preparation.6 8 Procedure .6 9 Expression of results 8 10 Precision.8 11 Test report 9 Annex A (informative) Typical chromatogram .10 Annex B (informative) Statistical results of the inter-laboratory test 11 Annex C (informative) Complete names
15、of chelating agents .12 Bibliography 13 DIN EN 15452:2008-11 EN 15452:2008 (E) 3 Foreword This document (EN 15452:2008) has been prepared by Technical Committee CEN/TC 260 “Fertilizers and liming materials”, the secretariat of which is held by DIN. This European Standard shall be given the status of
16、 a national standard, either by publication of an identical text or by endorsement, at the latest by January 2009, and conflicting national standards shall be withdrawn at the latest by January 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject
17、of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes CEN/TS 15452:2006. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to
18、the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithu
19、ania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. DIN EN 15452:2008-11 EN 15452:2008 (E) 4 1 Scope This European Standard specifies a method for the chromatographic determination of the amount of iron chela
20、ted by each of the individual isomers of the chelating agent ortho-para EDDHA (o,p-EDDHA) in fertilizers. The method allows the identification of this chelating agent and the determination of the water soluble fraction of iron chelated by this chelating agent. The method is not applicable for the de
21、termination of the amount of free chelating agent. NOTE 1 This method has been shown to be also suitable for the determination of the amount of iron chelated by each of the individual isomers of the chelating agent ortho-ortho EDDHA (o,o-EDDHA) in fertilizers. NOTE 2 o,o-EDDHA and o,p-EDDHA are abbr
22、eviations used in this European Standard for the sake of simplicity. For complete names see Annex C. NOTE 3 The substances o,o-EDDHA and o,p-EDDHA both exist as different stereoisomers. For o,o-EDDHA a meso form and a d/l pair (the racemic isomers) exist, for o,p-EDDHA two different d/l pairs exist.
23、 All four stereoisomers are observed separately in this method. NOTE 4 Currently, an analytically pure standard only exists for o,o-EDDHA. The method for o,p-EDDHA has been developed with an o,p-EDDHA standard containing an uncertain concentration of o,p-EDDHA. 2 Normative references The following r
24、eferenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 1482-2, Fertilizers and liming materials Sampling and sample
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