| Autor: |
Nikulin, Aleksandr Vladimirovich, Potanina, Olga Georgievna, Platonov, Evgeniy Alexandrovich, Bokov, Dmitry Olegovich, Smyslova, Olga Aleksandrovna, Abramovich, Rimma Aleksandrovna |
| Předmět: |
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| Zdroj: |
Pharmacognosy Journal; Sep/Oct2019, Vol. 11 Issue 5, p1124-1131, 8p |
| Abstrakt: |
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. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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