Chemical speciation of hexavalent chromium in organic fertilizer by LC-ICP-MS and spectrophotometry.
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Normative Instruction n. 7 of 04/12/2016 of the Ministry of Agriculture, Livestock and Food Supply (MAPA) defines the maximum values of contaminants allowed in organic fertilizers and soil conditioners, including chromium(VI), with a maximum allowed value of 2 mg kg-1[1].
Palabras clave
Spectrophotometric method, Chromatographic method, Hexavalent Chromium, Organic fertilizers