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BS EN 15452:2008

Current
Current

The latest, up-to-date edition.

Fertilizers. Determination of chelating agents. Determination of iron chelated by o,p-EDDHA by reversed phase HPLC
Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

08-29-2008

Foreword
1 Scope
2 Normative references
3 Principle
4 Interferences
5 Reagents
6 Apparatus
7 Sampling and sample preparation
8 Procedure
9 Expression of results
10 Precision
11 Test report
Annex A (informative) - Typical chromatogram
Annex B (informative) - Statistical results of the
                        inter-laboratory test
Annex C (informative) - Complete names of chelating agents
Bibliography

Defines a method for the chromatographic determination of the amount of iron chelated by each of the individual isomers of the chelating agent ortho-para EDDHA (o,p-EDDHA) in fertilizers.

This European Standard specifies a method for the chromatographic determination of the amount of iron chelated 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 determination 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 abbreviations 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. 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.

Committee
CII/37
DevelopmentNote
Supersedes DD CEN/TS 15452 & 07/30171562 DC. (08/2008) Reviewed and confirmed by BSI, September 2013. (08/2013)
DocumentType
Standard
Pages
16
PublisherName
British Standards Institution
Status
Current
Supersedes
UnderRevision

Standards Relationship
EN 15452:2008 Identical

EN 1482-2:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 2: Sample preparation
ISO 5725-2:1994 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
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995 Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)
EN 1482-1:2007 Fertilizers and liming materials - Sampling and sample preparation - Part 1: Sampling

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