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Year : 2013  |  Volume : 8  |  Issue : 3  |  Page : 135-139

Structure and physical properties of flowering plants of the genus hibiscus

1 Departments of Physics, Faculty of Science and Technology, AL Neelain University, Elobied, Sudan
2 Departments of Physics, Faculty of Science and Technology, AL Neelain University, Elobied; Department of Medical Physics, National University, Khartoum, Sudan
3 Department of Physics and Astronomy, King Saud University, Riyadh, Saudi Arabia
4 Faculty of Education, Kordfan University, Elobied, Sudan

Correspondence Address:
Mohamed A. Siddig
Department of Physics, Faculty of Science and Technology, El Neelain University, Khartoum, Sudan

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DOI: 10.4103/1858-5000.132597

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Introduction: Hibiscus is a genus of flowering plants in the mallow family, Malvacease. It is quite large, containing several hundred species that are native to warm-temperate and have many medical benefits, for example, hibiscus drink lowers high blood pressure. Materials and Methods: Flowering plants of hibiscus were used in this study. X-ray fluorescence (XRF) and Fourier Transformation infrared spectroscopy (FTIR) were used as analytical techniques. The XRF results indicated that, hibiscus has contained Potassium (K), Calcium (Ca), Iron (Fe), Copper (Cu), Bromine (Br), and Strontium (Sr). Results: The FTIR spectra of hibiscus showed a broad and strong absorption band in the range1145-2926 cm -1 , and these absorptions were assigned to the different stretching vibrations. The conductivity and dielectric properties of hibiscus were measured as function of frequency. The conductivity was found to decrease with frequency while the opposite behavior was observed in case of dielectric. In order to investigate the optical properties, solutions with different concentration of hibiscus were prepared. Ultraviolet-visible spectroscopy (UV) was used to obtain the absorption for different samples with different concentration. Conclusion: The absorption was found to increase with the increase of concentration of hibiscus.

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