Abstract
Background: An accurate, simple and selective UV-spectrophotometric method was developed for the estimation of silicon in medicinal plant raw material – horsetail herb (Equisetum arvense L.) of Russian origin. Methods: The determination of total silicon content in terms of silicon dioxide (SiO2) by the direct ultraviolet–visible (UV-Vis) spectrophotometry method (at a wavelength of 815 ± 5 nm) in the horsetail herb is based on the formation of yellow-colored silicomolybdic acid, and its further reduction to molybdenum blue. Results: Recoveries were found to be in the range of 100.2 to 105.1% and %RSD was less than 2%. Conclusion: The developed method is accurate, specific, precise within an interval 2-12% and suitable for the analysis of horsetail herb commercial samples.
Highlights
Silicon is one of the most common elements on Earth
The search for other methods and techniques for the determination of silicon in medicinal plant raw materials is an important task. From this point of view a promising procedure is spectrophotometric quantitation, when the analyte is determined in the form of intensely colored silicon-molybdenum blue,[26,27,28,29,30,31] which provides high sensitivity, and preliminary fusion of the material being analyzed can significantly reduce the risk of loss of the silicon being detected due to the formation of volatile compounds
The purpose of this study is to develop and validate a simple, effective procedure for the quantitative determination of total silicon content in terms of silicon dioxide (SiO2) by the ultraviolet-visible (UV-Vis) spectrophotometry method in the horsetail herb – a potential source of natural silicon
Summary
Silicon is one of the most common elements on Earth. Its oxide, silicon dioxide (SiO2) is the main component of inorganic natural objects: ores, rocks, soils, and the earth's crust.[1]. The search for other methods and techniques for the determination of silicon in medicinal plant raw materials is an important task From this point of view a promising procedure is spectrophotometric quantitation, when the analyte is determined in the form of intensely colored silicon-molybdenum blue,[26,27,28,29,30,31] which provides high sensitivity, and preliminary fusion of the material being analyzed can significantly reduce the risk of loss of the silicon being detected due to the formation of volatile compounds. The purpose of this study is to develop and validate a simple, effective procedure for the quantitative determination of total silicon content in terms of silicon dioxide (SiO2) by the ultraviolet-visible (UV-Vis) spectrophotometry method in the horsetail herb – a potential source of natural silicon. The developed procedure can be recommended for the standardization of the horsetail herb by the “Silicon content” index
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
