Determination of Nickel and Cobalt in Cosmetic Products Marketed in Iraq Using Spectrophotometric and Microfluidic Paper-based Analytical Device (µPADs) Platform. Baghdad Sci.J [Internet]. 2022 Dec. 1 [cited 2025 Jun. 19];19(6):1286. Available from: https://bsj-ojs.uobaghdad.edu.iq/index.php/BSJ/article/view/6539