Investigation of Some Trace Elements and Heavy Metals Concentrations in Selected Sudanese Medicinal Plants

  • Hadeel Berier Sudan Academy of Sciences, Khartoum Athenian, Khartoum, Sudan
  • Ahmed Elhag Sudan Atomic Energy Commission, The University Street, Khartoum, P. O. Box 3001, Sudan
Keywords: EDXRF, heavy metals, Sudan medicinal plants, trace elements


In Sudan, medicinal plants represent the primary source of health care. Therefore, determining the content of trace elements and heavy metals are of high importance. Thus, the purpose of this research is to investigate the content of trace elements (Fe, Mn, Zn and Cu) and heavy metals (Pb, As, Cd and Hg) in 30 selected Sudanese medicinal plants using Energy Dispersive X-ray fluorescence technique (EDXRF). Twelve elements K, Ca, Mn, Fe, Cu, Zn, Pb, Br, Rb, Sr, Ti and Zr were determined, and the concentrations of As, Cd and Hg below the detection limits. Using SPSS, the correlation between elements was performed; also cluster analysis checked the similarity between the samples results. The obtained results showed that the contents of the trace elements and heavy metals in the investigated medicinal plants species within the allowable safety limits except for Fe. The consumption of traditional Sudanese medicinal plants does not appear to pose a health risk factor by metals.


Ata S, Farooq F and Javed S. Elemental profile of 24 common medicinal plants of Pakistan and its direct link with traditional uses. Journal of Medicinal Plants Research, 5 (26), 6164-6168, 16 November 2011.

Stanojkovic-Sebic AL, Piyic, R, Josic D, Dini Z and Stanojkovic AL. Heavy metals content in selected medicinal plants commonly used as components for herbal formulations. Journal of Agricultural Sciences, 21, 317-325, 2015.

Anal J M H and Chase P. Trace elements analysis in some medicinal plants using graphite furnace-Atomic absorption spectroscopy. Environ. Eng. Res., 2016.

Bhanisana Devi R K and Sarma H N K. Profile of trace elements in selected medicinal plants of north east India. IOSR Journal of Applied Physics, 4 (3), 47-51, Juley - August 2013.

Korfali S I, Mroueh M, Al-Zein M and Salem R. Metal concentration in commonly used medicinal herbs and infusion by Lebanese population: health impact. Journal of Food Research, 2 (2), 70-82, 2013.

Giridhar Babu N, Raju T P, Srinivasu Ch Ch, Ramanamam V, Ram S S, sudershan M and Lakshmana Das N. Estimation of elemental concentrations of Indian medicinal plants using Energy dispersive X-ray fluorescence (EDXRF). International Journal of Scientific & Engineering Research, 6 (7), 1379-1387, July 2015.

Ebrahim A M, Eltayeb M H, Khalid H, Mohamed H, Abdalla W, Grill P and Michalke B. Study on selected trace elements and heavy metals in some popular medicinal plants from Sudan. Journal of Natural Medicines, 66 (4), 671-679, 2012.

Çolak S T A, Pekcan T, Çban Z, Add R, Tran S and Anaҫ D. Essential plant nutrients and heavy metals concentrations of some medicinal and aromatic plants. Journal of Agricultural Sciences, 20, 239-247, 2014.

Sulaiman I D, AlKubaisy R K and Salman J D. Determination of some essential elements in Iraqi medicinal herbs. Ibn Al-Haitham Jour. for Pure & Appl. Sci., 26 (1), 234-240, 2013.

Ajayi I A, Oderinde R A, Adewuyi A and Uponi J I. Evaluation of selected heavy metals and macronutrients status of 10 medicinal plants from Nigeria. IOSR Journal of Pharmacy and Biological Sciences, 8 (2), 12-17, November – December 2013.

Reference Sheet, Reference Material, IAEA-V-10, Trace Elements in Hay (Powder), International Atomic Energy Agency (IAEA), analytical quality control service, 2000.

Gibney M J, Lanham-New S A, Cassidy A and Vorster H H. “human Nutrition”, United Kingdom: Wiley-Blackwell, 2nd edition, 188-237, 2009.

Rajan J P, Singh K P, Kumar S and Mishra R K. Trace elements content in the selected medicinal plants traditionally used for curing skin diseases by the natives of Mizoram, India. Asian Pac J Trop Med, 7(1), 410- 414, 2014.

WHO, “WHO guidelines for assessing quality of herbal medicines with reference to contaminants and residues”, Geneva: WHO, 23-24, 2007.

Ali H, Khan E and Sajad M A. Photoremediation of heavy metals-concept and applications. Chemosphere, 91, 869-881, 2013.

Khan S A, Khan L, Hussain I, Marwat K B and Akhtar N. Profile of heavy metals in selected medicinal plants. Pak. J. Weed Sci. Res., 14(1-2), 101-110, 2008.

Adams J Y and Keen C L. Copper, Oxidative Stress and Human Health. Mol. Aspects Med., 26 (4-5), 268-298, 2005.

Konieczński P and Wesołowski M. Interrelationships among selected essential elements in medicinal plant raw materials and their water-extractable forms. herba roloniea, 59 (2), 46-58, 2013.