EN
We assessed nitrates (III) and (V) contents in herbal/synthetic confections, syrups, herbs and herbal blends used in respiratory tract therapy, as well as herbs and herbal blends used in urinary tract treatment. The Griess and Ilosvay method with double reduction on cadmium column was applied. The percentage of extraction of nitrates III and V to infusions was calculated for the maximal daily doses of the phytotherapeutics.