Norm

NEN-EN 17298:2018 Ontw. en

Diervoeders: Bemonsterings- en analysemethoden - Bepaling van benzoƫzuur en sorbinezuur door hogedrukvloeistofchromatografie (HPLC)

  • Deze norm is ingetrokken sinds 01-08-2019

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Over deze norm

Status Ingetrokken
Aantal pagina's 18
Commissie Diervoeder
Gepubliceerd op 01-09-2018
Taal Engels
This document specifies a method for the determination of benzoic acid and sorbic acid in animal feeding stuffs by high-performance liquid chromatography method with ultraviolet detection (HPLC-UV). The method is intended to be used for the determination of benzoic acid and sorbic acid as active substances in feed additives, premixtures and compound feed and for benzoic acid in water. This method determines the total extractable concentration of these organic acids and their salts. It is advisable that the working range of the method is determined for each organic acid by the user of this standard. The lower limit of the working range depends on the matrix and the interferences encountered. It is advisable that a working range between 5 mg/l and 100 mg/l is accessible. The method was successfully tested in an inter-laboratory study in concentrations between 0,02 % up to 9,0 %. On the basis of the referred working range, sample weigh and extraction volume, limits of quantification (LOQ), as calculated (Table 1) on the basis of a wavelength of 230 nm, can be achievable.

Details

ICS-code 65.120
71.040.40
Nederlandse titel Diervoeders: Bemonsterings- en analysemethoden - Bepaling van benzoƫzuur en sorbinezuur door hogedrukvloeistofchromatografie (HPLC)
Engelse titel Animal feeding stuffs: Methods of sampling and analysis - Determination of benzoic and sorbic acid by High Pressure Liquid Chromatography (HPLC)
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