ČSN EN 15705 (654877)

Inorganic fertilizers - Determination of methylen-urea oligomers using high-performance liquid chromatography (HPLC)

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STANDARD published on 1.8.2024


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The information about the standard:

Designation standards: ČSN EN 15705
Classification mark: 654877
Catalog number: 519675
Publication date standards: 1.8.2024
SKU: NS-1192855
The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
Country: Czech technical standard
Category: Technical standards ČSN

The category - similar standards:

Fertilizers

Annotation of standard text ČSN EN 15705 (654877):

Tento dokument specifikuje metodu pro stanovení oligomerů methylenmočoviny (MU) v anorganických hnojivech s využitím vysokoúčinné kapalinové chromatografie (HPLC).

Metoda je použitelná pro všechna hnojiva, která neobsahují rušivé organické sloučeniny.

Vzorek se extrahuje vroucí vodou a analyzuje s pomocí vhodného HPLC systému.

Rozpustné oligomery methylenmočoviny se měří a detekují pomocí metody HPLC.

Na chromatogramu jsou oligomery methylenmočoviny reprezentovány různými píky: močovina, methylendimočovina, dimethylentrimočovina a trimethylentetramočovina jsou v daném čase nejvíce rozpustné a důležité

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