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      Multielement Determination of Macro and Micro Contents in Medicinal Plants and Phytomedicines from Brazil by ICP OES

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          Abstract

          In this study, the elemental composition of nine medicinal plants and phytomedicines was evaluated by using axial view inductively coupled plasma optical emission spectrometry (ICP OES) after three digestion procedures: dry ashing (DA) and two wet digestions with a mineral acid (HNO3/H2O2) mixture on a conventional hot plate (CD), besides microwave digestion (MW). Accuracy was assessed from spinach leaves (CRM 1570a) and recovery values were in the range of 82 to 113.8%. Precisions, such as relative standard deviation (RSD), below 10% were reached. The MW procedure was preferred for its accuracy (recovery values of 94 to 102%), reduced contamination, increase in the efficiency of the decomposition process, lower residual acidity and reduced time required for digestion. The concentrations of analytes in the samples (minimum-maximum in μg g-1) were: Ca (100.71-462.20), Co (0.54-0.85), Cu (0.32-7.82), Fe (2.74-18.03), Mg (18.40-521.28), Mn (0.17-55.14), Ni (0.56-1.25) and Zn (2.96-20.92). The levels of Al, Ba, Cd, Cr, Mo, Pb, Se and V in all investigated samples were found to be below the limit of detection of ICP OES. The multielement analysis by ICP OES showed that the method is simple, fast and reliable for the multielement determination in medicinal plants and phytomedicines.

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          J. Braz. Chem. Soc.

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              Anal. Chim. Acta

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                jbchs
                Journal of the Brazilian Chemical Society
                J. Braz. Chem. Soc.
                Sociedade Brasileira de Química (São Paulo, SP, Brazil )
                0103-5053
                1678-4790
                February 2017
                : 28
                : 2
                : 376-384
                Affiliations
                [2] Salvador Bahia orgnameUniversidade do Estado da Bahia orgdiv1Departamento de Ciências Exatas e da Terra Brazil
                [1] Salvador Bahia orgnameUniversidade do Estado da Bahia orgdiv1Departamento de Ciências da Vida Brazil
                [3] Salvador Bahia orgnameUniversidade Federal da Bahia orgdiv1Instituto de Química Brazil
                [4] João Pessoa Paraíba orgnameUniversidade Federal da Paraíba orgdiv1Departamento de Ciências Farmacêuticas Brazil
                Article
                S0103-50532017000200376
                10.5935/0103-5053.20160187
                a5f3a12b-f476-4079-8c9e-0a62afe24c75

                This work is licensed under a Creative Commons Attribution 4.0 International License.

                History
                : 07 April 2016
                : 21 June 2016
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 41, Pages: 9
                Product

                SciELO Brazil


                medicinal plant,phytomedicines,sample preparation,elemental composition,ICP OES

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