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This European Standard specifies a method for the determination of the elements cadmium and lead in animal feeding stuffs by graphite furnace atomic absorption spectrometry (GF-AAS) after pressure digestion.
The method was successfully tested in the range of 0,015 to 5,65 mg/kg for cadmium and 0,18 to 40,3 mg/kg for lead in the following animal feeding stuffs: pig feed, sheep feed, phosphate and mineral premixture, mineral mix, CuSO4, MgO, CaCo3 and bentonite.
For phyllosilicates (e.g. koalinitic clays) and feeds containing phyllosilicates the extractable lead content is of concern regarding current legislation and therefore the results of lead when using this standard may be overestimated. If the result for lead in phyllosilicates or feeds containing phyllosilicates is non compliant to current legislation using this standard the extraction mode 9.1.4 of EN 15510 shall be used for confirmatory purposes.
The method limit of quantification for each element is dependent on the sample matrix as well as the instrument. For cadmium a limit of quantification of 0,05 mg/kg should normally be obtained while for lead, a limit of quantification of 0,5 mg/kg should be obtained.
Reģistrācijas numurs (WIID)
60878
Darbības sfēra
This European Standard specifies a method for the determination of the elements cadmium and lead in animal feeding stuffs by graphite furnace atomic absorption spectrometry (GF-AAS) after pressure digestion.
The method was successfully tested in the range of 0,015 to 5,65 mg/kg for cadmium and 0,18 to 40,3 mg/kg for lead in the following animal feeding stuffs: pig feed, sheep feed, phosphate and mineral premixture, mineral mix, CuSO4, MgO, CaCo3 and bentonite.
For phyllosilicates (e.g. koalinitic clays) and feeds containing phyllosilicates the extractable lead content is of concern regarding current legislation and therefore the results of lead when using this standard may be overestimated. If the result for lead in phyllosilicates or feeds containing phyllosilicates is non compliant to current legislation using this standard the extraction mode 9.1.4 of EN 15510 shall be used for confirmatory purposes.
The method limit of quantification for each element is dependent on the sample matrix as well as the instrument. For cadmium a limit of quantification of 0,05 mg/kg should normally be obtained while for lead, a limit of quantification of 0,5 mg/kg should be obtained.
