NF EN 15688
NF EN 15688

NF EN 15688

October 2008
Standard Current

Fertilizers - Determination of urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC)

Le présent document spécifie une méthode pour la détermination quantitative de la teneur en inhibiteur d'uréase N-(n-butyl) triamine thiophosphorique (NBPT) dans des matrices solubles dans l'eau, c'est-à-dire des engrais à base d'urée, par chromatographie liquide haute performance (HPLC).

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Main informations

Collections

National standards and national normative documents

Publication date

October 2008

Number of pages

14 p.

Reference

NF EN 15688

ICS Codes

65.080   Fertilizers

Classification index

U42-115

Print number

1 - octobre 2008

European kinship

EN 15688:2008
Sumary
Fertilizers - Determination of urease inhibitor N-(n-butyl) thiophosphoric triamide (NBPT) using high-performance liquid chromatography (HPLC)

Le présent document spécifie une méthode pour la détermination quantitative de la teneur en inhibiteur d'uréase N-(n-butyl) triamine thiophosphorique (NBPT) dans des matrices solubles dans l'eau, c'est-à-dire des engrais à base d'urée, par chromatographie liquide haute performance (HPLC).
Table of contents
  • Avant-propos
    3
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Termes et définitions
    4
  • 4 Principe
    4
  • 5 Réactifs
    4
  • 5.1 Généralités
    4
  • 5.2 Réactifs pour chromatographie liquide
    4
  • 5.3 Étalons
    5
  • 6 Appareillage
    5
  • 6.1 Appareillage HPLC
    5
  • 6.2 Conditions de chromatographie liquide haute performance
    5
  • 7 Échantillonnage et préparation de l'échantillon
    6
  • 8 Mode opératoire
    6
  • 8.1 Préparation de la prise d'essai
    6
  • 8.2 Étalonnage
    6
  • 8.3 Essai à blanc
    6
  • 8.4 Essai de contrôle
    6
  • 9 Calculs et expression des résultats
    7
  • 10 Fidélité
    7
  • 10.1 Essai interlaboratoire
    7
  • 10.2 Répétabilité
    7
  • 10.3 Reproductibilité
    8
  • 11 Rapport d'essai
    8
  • Annexe A (informative) Résultats de l'essai interlaboratoire
    9
  • Bibliographie
    10
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