Arif Ahmed

Application of the Mason−Schamp Equation and Ion Mobility Mass Spectrometry To Identify Structurally Related Compounds in Crude Oil

Arif Ahmed, Yun Ju Cho, Myoung-han No et al. · Analytical Chemistry · 2010 · 95 citations

Engineering, Chemical Analysis, Asap Source +18

Application of Atmospheric Pressure Photo Ionization Hydrogen/Deuterium Exchange High-Resolution Mass Spectrometry for the Molecular Level Speciation of Nitrogen Compounds in Heavy Crude Oils

Yunju Cho, Arif Ahmed, Sunghwan Kim · Analytical Chemistry · 2013 · 60 citations

Engineering, Nitrogen Compounds, Organic Chemistry +19

Elucidating Molecular Structures of Nonalkylated and Short-Chain Alkyl (<i>n</i> &lt; 5, (CH₂)_<i>n</i>) Aromatic Compounds in Crude Oils by a Combination of Ion Mobility and Ultrahigh-Resolution Mass Spectrometries and Theoretical Collisional Cross-Section Calculations

Arif Ahmed, Yunju Cho, Kevin Giles et al. · Analytical Chemistry · 2014 · 57 citations

Engineering, Aromatic Compounds, Organic Chemistry +17

Attenuation of melanogenesis by Nymphaea nouchali (Burm. f) flower extract through the regulation of cAMP/CREB/MAPKs/MITF and proteasomal degradation of tyrosinase

Md Badrul Alam, Arif Ahmed, Md. Abdul Motin et al. · Scientific Reports · 2018 · 52 citations · Full text

Optimization and Application of APCI Hydrogen–Deuterium Exchange Mass Spectrometry (HDX MS) for the Speciation of Nitrogen Compounds

Thamina Acter, Yunju Cho, Sungji Kim et al. · Journal of the American Society for Mass Spectrometry · 2015 · 48 citations

Engineering, Chemical Analysis, Biological Mass Spectrometry +20