Determination of Na, K and Fe in Lactuca Sativa by using Atomic Absorption Spectrophotometric and Flame Photometric Techniques. AJPS [Internet]. 2018 Mar. 9 [cited 2025 Apr. 19];17(2):6. Available from: https://ajps.uomustansiriyah.edu.iq/index.php/AJPS/article/view/37