Fertilizers - Determination of 1H,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)

This document specifies a method for the determination of triazole (TZ) in urea or in fertilizers containg urea in the presence of dicyandiamide or methylpyrazole respectively using gas chromatography (GC). Triazole is determined by means of gas chromatography. Detection occurs through an quadrupol. An extern calibration point is used for analysis. Urea or ammonium nitrate-urea solution as well as other nitrification inhibitors, e. g. dicyandiamide or methylpyrazole respectively contained therein are duly taken into consideration during calibration (matrix interference effect).

Düngemittel - Bestimmung von 1H,2,4-Triazol in Harnstoff und in harnstoffhaltigen Düngemitteln - Verfahren mit Hochleistungs-Flüssigchromatographie (HPLC)

Diese Europäische Norm legt ein Verfahren zur Bestimmung von Triazol (TZ) in Harnstoff oder in harnstoffhaltigen Düngemitteln jeweils in Anwesenheit von Dicyandiamid oder Methylpyrazol mittels Hochleistungs-Flüssigchromatographie (HPLC) fest.

Engrais - Dosage du 1H,2,4-triazole dans l'urée et les engrais contenant de l'urée - Méthode par chromatographie liquide à haute performance (HPLC)

La présente norme décrit une méthode de détermination de la teneur en triazole (TZ) dans l’urée et dans les
engrais contenant de l’urée en présence de dicyandiamide ou de méthylpyrazole par chromatographie liquide
à haute performance (HPLC).

Gnojila - Določevanje 1H,2,4-triazola v sečnini in gnojilih, ki vsebujejo sečnino - Metoda s tekočinsko kromatografijo visoke ločljivosti (HPLC)

Ta dokument določa metodo za določevanje triazola (TZ) v sečnini ali gnojilih, ki vsebujejo sečnino, v prisotnosti diciandiamida oz. metilpirazola, z uporabo plinske kromatografije (GC). Triazol se določa s plinsko kromatografijo. Zaznava poteka prek kvadrupola. Pri analizi se uporablja zunanja kalibracijska točka. Pri kalibraciji je treba ustrezno upoštevati sečnino ali raztopino amonijevega nitrata in sečnine ter druge zaviralce nitrifikacije, npr. diciandiamid oz. metilpirazol, ki sta prisotna v njih (matrični interferenčni učinek).

General Information

Status
Published
Public Enquiry End Date
14-Mar-2010
Publication Date
15-May-2011
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
05-May-2011
Due Date
10-Jul-2011
Completion Date
16-May-2011

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Düngemittel - Bestimmung von 1H,2,4-Triazol in Harnstoff und in harnstoffhaltigen Düngemitteln - Verfahren mit Hochleistungs-Flüssigchromatographie (HPLC)Engrais - Dosage du 1H,2,4-triazole dans l'urée et les engrais contenant de l'urée - Méthode par chromatographie liquide à haute performance (HPLC)Fertilizers - Determination of 1H,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)65.080GnojilaFertilizersICS:Ta slovenski standard je istoveten z:EN 16024:2011SIST EN 16024:2011en,fr,de01-junij-2011SIST EN 16024:2011SLOVENSKI
STANDARD



SIST EN 16024:2011



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 16024
April 2011 ICS 65.080 English Version
Fertilizers - Determination of 1H-1,2,4-triazole in urea and in fertilizers containing urea - Method using high-performance liquid chromatography (HPLC)
Engrais - Dosage du 1H-1,2,4-triazole dans l'urée et les engrais contenant de l'urée - Méthode par chromatographie liquide à haute performance (HPLC)
Düngemittel - Bestimmung von 1H-1,2,4-Triazol in Harnstoff und harnstoffhaltigen Düngemitteln - Verfahren mit Hochleistungs-Flüssigchromatographie (HPLC) This European Standard was approved by CEN on 26 February 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, 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 STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16024:2011: ESIST EN 16024:2011



EN 16024:2011 (E) 2 Contents Page Foreword .31Scope .42Normative references .43Terms and definitions .44Principle .45Reagents .46Apparatus .57Sampling and sample preparation .58Procedure .58.1Preparation of the test solution .58.2Preparation of the calibration solutions .58.3HPLC conditions .68.4HPLC determination .79Calculation and expression of the results .79.1Calculation .79.2Expression of results .810Precision .810.1Inter-laboratory test .810.2Repeatability .810.3Reproducibility .811Test report .9Annex A (informative)
Statistical results of the inter-laboratory test . 10Bibliography . 11 SIST EN 16024:2011



EN 16024:2011 (E) 3 Foreword This document (EN 16024:2011) 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 a national standard, either by publication of an identical text or by endorsement, at the latest by October 2011, and conflicting national standards shall be withdrawn at the latest by October 2011. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 16024:2011



EN 16024:2011 (E) 4 1 Scope This European Standard specifies a method for the determination of triazole (TZ) in urea or in fertilizers containing urea in the presence of dicyandiamide or methylpyrazole respectively using high-performance liquid chromatography (HPLC). 2 Normative references The following referenced 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 preparation — Part 2: Sample preparation EN 12944-1:1999, Fertilizers and liming materials and soil improvers — Vocabulary — Part 1: General terms EN 12944-2:1999, Fertilizers and liming materials and soil improvers — Vocabulary — Part 2: Terms relating to fertilizers
EN ISO 3696:1995, Water for analytical laboratory use — Specification and test methods (ISO 3696:198
...

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