全部文献期刊学位论文会议报纸专利标准年鉴图书|学者科研项目
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作者:Avvaru Praveen Kumar , Do-Hyeon Paik ...
来源:[J].Microchemical Journal(IF 2.879), 2009, Vol.94 (2), pp.139-147Elsevier
摘要:Abstract(#br)A rapid, sensitive and specific ultra-performance liquid chromatography–quadrupole time-of-flight mass spectrometry (UPLC–QToF-MS) method has been developed and validated for simultaneous determination of three tetracyclines (TCs) including oxytetracycline, tetr...
作者:Avvaru Praveen Kumar , Hyuk Jeong
来源:[J].Journal of Alloys and Compounds(IF 2.39), 2014, Vol.588, pp.127-132Elsevier
摘要:Abstract(#br)We developed a facile strategy to synthesize transition metal (TM; Ni, Cr, Co, and Ti)-doped ZnSe nanoparticles (NPs) in aqueous media using a chemical co-precipitation method. Co-precipitation was performed in the presence of one of four different surfactants, ...
作者:Avvaru Praveen Kumar , Goon-Cheol Song
来源:[J].Microchemical Journal(IF 2.879), 2007, Vol.88 (1), pp.62-66Elsevier
摘要:Abstract(#br)A sensitive and specific liquid chromatography–electrospray ionization–mass spectrometry (LC–ESI–MS) method for the separation and analysis of d - and l -thyroxine was developed using R(−)/S(+)-4-(3-isothiocyanatopyrrolidin-1-yl)-7-( N , N -dimethylami...
作者:Avvaru Praveen Kumar , Jung Hag Park
来源:[J].Analytical Letters(IF 0.965), 2012, Vol.45 (1), pp.15-42Taylor & Francis
摘要:Separation of enantiomers is one of the most interesting and challenging tasks in the field of separation science. High-performance liquid chromatography (HPLC) and recently capillary electrochromatography (CEC) using chiral stationary phases (CSP) are two of the most useful tech...
作者:Avvaru Praveen Kumar , B. Prem Kumar ...
来源:[J].Applied Surface Science(IF 2.112), 2013, Vol.265, pp.500-509Elsevier
摘要:Abstract(#br)The present work reports a chemical co-precipitation process to synthesize palladium (Pd) nanoparticles using alumina as a supporting material. The optimized temperature for the formation of nanocrystalline palladium was found to be 600 °C. The X-ray diffraction...
作者:Avvaru Praveen Kumar , Papammagari Raveendra Reddy , Vanka Krishna Reddy
来源:[J].Analytical Letters(IF 0.965), 2008, Vol.41 (6), pp.1022-1037Taylor & Francis
摘要:A rapid, simple, sensitive, and selective spectrophotometric method is investigated for the determination of traces of vanadium (V) in foodstuffs, alloy steels, and pharmaceutical, water, soil, and urine samples in aqueous DMF medium. The metal ion forms a green colored comp...
作者:Avvaru Praveen Kumar , Dongri Jin , Yong-Ill Lee
来源:[J].Applied Spectroscopy Reviews(IF 2.915), 2009, Vol.44 (4), pp.267-316Taylor & Francis
摘要:Chirality has become a central theme in scientific research and is an important task in the field of analytical chemistry. In the past few decades, demand for chiral recognition and separation has increased due to the importance of chirality in many fields such as pharmaceutics, ...
作者:Avvaru Praveen Kumar , Gosula Venkat Ram Reddy ...
来源:[J].Analytical Letters(IF 0.965), 2010, Vol.43 (17), pp.2653-2662Taylor & Francis
摘要:A gradient reversed-phase high performance liquid chromatography (RP-HPLC) method was developed for separation and quantitation of impurities in pharmaceutical dosage form of ofloxacin tablets. The developed method was a stability indicating test method for estimation of rel...
作者:Avvaru Praveen Kumar , Hua Jin ...
来源:[J].Journal of the American Society for Mass Spectrometry(IF 3.592), 2009, Vol.21 (1), pp.14-22Elsevier
摘要:The single ratio kinetic method is applied to the discrimination and quantification of the thyroid hormone isomers, 3,5,3′-triiodothyronine and 3,3′,5′-triiodothyronine, in the gas phase, based on the kinetics of the competitive unimolecular dissociations of singly char...

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