University of Guilan Caspian Journal of Environmental Sciences 1735-3033 20 1 2022 01 01 Detection of heavy elements in plant supplements that are dealt with in the Iraqi market 221 223 5438 10.22124/cjes.2022.5438 EN Suaad K. Abd Al-Wahab Department of Biology, College of Education for Pure Science, University of Diyala, Iraq Zeina Gany Fadeel Department of Biology, College of Education for Pure Science, University of Diyala, Iraq Journal Article 2022 02 25 Heavy metals were measured in plant supplements including spirulina, mycophigi, lion's mane, reishi mushroom, Lingzhi tea, Cordyceps mushroom and coffee. Aluminium and chlorine were measured using X-ray fluorescent technology, whereas copper and cadmium using the atomic absorption spectrometry. According to the results, aluminium exhibited the highest concentration in Lingzhi tea: 618,263 ppm (part per million), while Cordyceps mushroom the lowest (105.781 ppm). In the case of chlorine, the highest concentration was recorded in spirulina (21502.5 ppm), whereas in the reishi mushrooms the lowest (921.2 ppm).  Lingzhi tea recorded the highest copper concentration of 7.17 ppm, while the lion's mane the lowest (0.39 ppm). In the case of cadmium, its concentration was zero in all samples. https://cjes.guilan.ac.ir/article_5438_19789001e90c1ffd490ea660232e0420.pdf