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Kumar YR Ramulu G Vevakanand VV Vaidyanathan G Srinivas K Kumar MK Mukkanti K Reddy MS Venkatraman S Suryanarayana MV 《Journal of pharmaceutical and biomedical analysis》2004,35(5):1279-1285
An isocratic chiral HPLC method was developed for the separation of tolterodine tartarate enantiomers. The mobile phase consists of n-hexane and isopropyl alcohol in the ratio of 980:20 (v/v) with 1 ml diethylamine and 0.6 ml trifluoroacetic acid. Chiralcel OD-H (250 mm × 4.6 mm) column was used at constant room temperature. Flow rate was kept at 0.5 ml/min. This method is capable of detecting the S-isomer up to 0.1 μg/ml. The method was validated in terms of linearity, precision, limit of detection (LOD) and limit of quantification (LOQ). 相似文献
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Alison G. Abraham PhD Xinxing Guo MD PhD Lubaina T. Arsiwala BDS MHS Yanan Dong MHS A. Richey Sharrett MD DrPH David Huang MD PhD Qisheng You MD PhD Liang Liu MD Brandon J. Lujan MD Alexander Tomlinson BS Thomas Mosley PhD Josef Coresh MD PhD Yali Jia PhD Aleksandra Mihailovic ScM Pradeep Y. Ramulu MD PhD 《Journal of the American Geriatrics Society》2021,69(9):2524-2535
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Satish Kasturi Sri Ramulu Torati Yun Ji Eom Syafiq Ahmad Byong-June Lee Jong-Sung Yu CheolGi Kim 《RSC advances》2020,10(23):13722
Herein, we have reported the real-time photodegradation of methylene blue (MB), an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite. The photocatalyst was prepared via a simple, one-pot and green approach with the simultaneous reduction of GO and Pt using aqueous honey as a reducing agent. Moreover, the honey not only simultaneously reduced Pt ions and GO but also played a key role in the growth and dispersion of Pt nanoparticles on the surface of rGO. Various rGO/Pt nanocomposites with different percentages of Pt nanoparticles loaded on rGO were obtained by tuning the concentration of the Pt source. The high percentage of Pt nanoparticles with an average size of 2.5 nm dispersed on rGO has shown excellent electrochemical performance. The photocatalytic activity of the rGO/Pt composite was enhanced by increasing the weight percent of the Pt particles on rGO, which led to the formation of a highly efficient photocatalyst. The optimized photocatalyst exhibited remarkable photocatalytic activity and degraded 98% MB in 180 minutes; thus, it can be used for industrial and environmental applications.Herein, we have reported the real-time photodegradation of methylene blue, an organic pollutant, in the presence of sunlight at an ambient temperature using a platinum-decorated reduced graphene oxide (rGO/Pt) nanocomposite. 相似文献
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