Chaplenko, Alexander, Oksana Monogarova, and Kirill Oskolok. “X-Ray Fluorescence Determination of Trace Elements in Vitamin-Mineral Complexes and Medicinal Herbs Using Chemically Modified Polyurethane Foam Sorbents”. Iraqi Journal of Pharmaceutical Sciences 27, no. 2 (December 5, 2018): 1–6. Accessed November 27, 2024. https://bijps.uobaghdad.edu.iq/index.php/bijps/article/view/762.