Product quality tests require accurate and precise analytical techniques. Fertilizers belong to a group

of products whose chemical composition is of great importance due to health, environmental and economic

reasons. The following paper presents the results of the research into the content of selected substances in several mineral fertilizers manufactured in Poland. Ion chromatography (IC) was employed to determine selected

inorganic anions and cations, whereas energy dispersive X-ray fluorescence spectrometry (EDXRF) was used

to determine the content of selected elements.