Silaev Dmitry V. RussiaSaratovSaratov State Medical University, 112, Bolshaya Kazachya Str., Saratov, 410010, RussiaХимик-эксперт Аспирантsil_diman@mail.ru Author's articles Determination of Synthetic Food Dyes E110 and E124 in the Joint Presence by Vierordt’s Method and Derivative Spectrophotometry