Committee Draft
ISO/CD 25300
Fertilizers, Soil conditioners and Beneficial Substances — Simultaneous Determination of free amino acid content
Reference number
ISO/CD 25300
Edition 1
© ISO 2025
Committee Draft
Under development
A draft is being reviewed by the committee.

Abstract

This document specifies the methods for determining the content of free amino acids in fertilizers, including the use of automatic amino acid analyzers, pre-column derivatization followed by high-performance liquid chromatography and high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS). These methods are applicable to the following amino acids: Asparagine Tryptophan, Glutamine, Theanine, Aspartic acid, Threonine, Serine, Glutamic acid, Proline, Glycine, Alanine, Valine, Methionine, Isoleucine, Leucine, Tyrosine, Phenylalanine, Histidine, Lysine, Arginine, and Cysteine.

General information

  • Status
     : Under development
    Stage
    : CD consultation initiated [30.20]
  • Edition
     : 1
  • Technical Committee :
    ISO/TC 134
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

2
Zero Hunger
12
Responsible Consumption and Production
13
Climate Action

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