Determination of Copper, Chromium, Nickel, and Lead in Mozzarella Cheese by Flame Atomic Absorption Spectrometry Using Ultrasonic-Assisted Extraction. Acad. J. Int. Univ. Erbil [Internet]. 2025 Jan. 20 [cited 2025 Jul. 1];2(01):27-34. Available from: https://ojs.cihanrtv.com/index.php/public/article/view/7