13rd Year Student in the Specialty 6B07201 - Pharmaceutical Production Technology of the Karaganda Medical University, Karaganda, Kazakhstan
2Associate Professor of the School of Pharmacy of the Karaganda Medical University (Karaganda, Kazakhstan
3Master in the Manufacture of Explosives (Aktau settlement, Temirtau, Karaganda region, Kazakhstan
4Professor of the School of Pharmacy of the Karaganda Medical University,40 Gogol Str., 100008, Karaganda, Kazakhstan
5Senior Researcher of the K. Kulazhanov Kazakh University of Technology and Business (building 37 A., Kayim Mukhamedkhanov str., Yesil district, left bank, Astana, Kazakhstan)
6Professor of the Department of Chemistry, Chemical Technology and Ecology of the K. Kulazhanov Kazakh University of Technology and Business (Building 37 A., Kayim Mukhamedkhanov str., Yesil district, left bank, Astana, Kazakhstan
*Corresponding Author E-mail: maira.zhunusova@mail.ru
Online Published on 28 May, 2026.
This article presents studies of the presence of heavy metals in waste carbon dioxide extraction (CO2-meal). Alcohol and aqueous extracts from CO2-meal of herb Scabiosa ochroleuca L. (scabiosa pale yellow) were studied via inversion voltammetry for the presence of the following heavy metals: zinc (Zn), cadmium (Cd), lead (Pb), and copper (Cu). Research has been conducted to determine the dynamics of the migration of heavy metals from raw materials to CO2 meals. According to the results of the present study, the contents of heavy metals in the alcohol extract from the CO2 meal of the herb Scabiosa ochroleuca L. were as follows: Zn = 0.6136 mg/ml; Cd = 0.001999 mg/ml; Pb = 0.002992 mg/ml; and Cu = 1.868 mg/ml. For an aqueous extract from the CO2 meal of the herb Scabiosa ochroleuca L., Zn = 0.2471 mg/ml; Cd = 0.01919 mg/ml; Pb = 0.02321 mg/ml; and Cu = 0.3304 mg/ml. The percentage of transition of heavy metals from vegetable raw materials to CO2-meal for alcohol extraction was as follows: Zn =1.87%; Cd = 12.44%; Pb = 0.28%; and Cu = 10%. The percentage of transition of heavy metals from vegetable raw materials to CO2-meal for the aqueous extract was as follows: Zn = 0.8%; Cd = 85%; Pb = 2.2%; and Cu = 1.7%.
Heavy metals, Scabiosa ochroleuca L, CO2-meal, waste-free technologies, inversion voltammetry
