BS EN 16943:2017 pdf free.Foodstuffs – Determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc by ICP-OES.
BS EN 16943 This European Standard describes a method for the determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc in different foodstuffs using optical emission spectrometry with inductively coupled plasma (ICP-OES) after pressure digestion.This method has been validated in an interlaboratory study according to ISO 5725 [1] on infant formula soya based, cheese, chicken meat, wheat flour, apple juice, lobster and milk (see elements ranges Table 1 and validation data in Annex B).
HorRat values greater than 2 have been observed for certain analyte/matrix combinations during the validation study.The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.EN 13804, Foodstuffs – Determination of elements and their chemical species – General considerations and specific requirements
EN 13805, Foodstuffs – Determination of trace elements – Pressure digestion.After digestion of the sample with the pressure digestion process described in EN 13805, calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc are determined quantitatively with the ICP-OES [2]. The digestion solution is nebulized, the aerosol is directed into an inductively coupled argon plasma, where the elements are atomized and excited for radiation. The emission radiation is resolved spectrally and its intensity determined at element-specific wavelengths with a detector system. lonization interference can be minimized using an ionization buffer.Calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, sulfur and zinc individual element stock solutions and internal standard used.The individual element stock solutions may not contain any of the elements to be determined here as accompanying substances or impurities, which could affect the correctness of the results.Alternatively, commercial mixed stock solutions can also be used.BS EN 16943 pdf downlaod.