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Arif Ahmed (PhD)
Arif Ahmed (PhD)
Scientist, Regeneron
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Developments in FT‐ICR MS instrumentation, ionization techniques, and data interpretation methods for petroleomics
Y Cho, A Ahmed, A Islam, S Kim
Mass Spectrometry Reviews, 2015
2382015
Application of the Mason−Schamp Equation and Ion Mobility Mass Spectrometry To Identify Structurally Related Compounds in Crude Oil
A Ahmed, YJ Cho, M No, J Koh, N Tomczyk, K Giles, JS Yoo, S Kim
Analytical chemistry 83 (1), 77-83, 2011
1182011
Hydrogen/deuterium exchange in mass spectrometry
Y Kostyukevich, T Acter, A Zherebker, A Ahmed, S Kim, E Nikolaev
Mass spectrometry reviews 37 (6), 811-853, 2018
882018
Application of Atmospheric Pressure Photo Ionization Hydrogen/Deuterium Exchange High-Resolution Mass Spectrometry for the Molecular Level Speciation of Nitrogen Compounds in ¡¦
Y Cho, A Ahmed, S Kim
Analytical chemistry 85 (20), 9758-9763, 2013
662013
Elucidating Molecular Structures of Nonalkylated and Short-Chain Alkyl (n < 5, (CH2)n) Aromatic Compounds in Crude Oils by a Combination of Ion Mobility and Ultrahigh ¡¦
A Ahmed, Y Cho, E Riches, K Giles, JW Lee, H Kim, CH Choi, S Kim
Analytical Chemistry, 2014
652014
Optimization and Application of APCI Hydrogen–Deuterium Exchange Mass Spectrometry (HDX MS) for the Speciation of Nitrogen Compounds
T Acter, Y Cho, S Kim, A Ahmed, BJ Kim, S Kim
Journal of The American Society for Mass Spectrometry, 2015
512015
Molecular-level evidence provided by ultrahigh resolution mass spectrometry for oil-derived doc in groundwater at Bemidji, Minnesota
A Islam, A Ahmed, M Hur, K Thorn, S Kim
Journal of hazardous materials 320, 123-132, 2016
432016
Atmospheric Pressure Photo Ionization Hydrogen/Deuterium Exchange Mass Spectrometry—a Method to Differentiate Isomers by Mass Spectrometry
A Ahmed, S Kim
Journal of the American Society for Mass Spectrometry 24 (12), 1900-1905, 2013
432013
Attenuation of melanogenesis by Nymphaea nouchali (Burm. f) flower extract through the regulation of cAMP/CREB/MAPKs/MITF and proteasomal degradation of tyrosinase
MB Alam#, A Ahmed#, S Motin, Abdul, Kim, SH Lee
Scientific Reports, 1-14, 2018
402018
Data Interpretation Methods for Petroleomics
A Islam, YJ Cho, A Ahmed, SH Kim
Mass Spectrometry Letters 3 (3), 63-67, 2012
392012
Identification of secondary metabolites in Averrhoa carambola L. bark by high-resolution mass spectrometry and evaluation for ¥á-glucosidase, tyrosinase, elastase, and ¡¦
S Islam, MB Alam, A Ahmed, S Lee, SH Lee, S Kim
Food chemistry 332, 127377, 2020
362020
Mechanisms Behind the Generation of Protonated Ions for Polyaromatic Hydrocarbons by Atmospheric Pressure Photoionization
A Ahmed, CH Choi, MC Choi, S Kim
Analytical chemistry 84 (2), 1146-1151, 2011
362011
Conducting poly (aniline blue)-gold nanoparticles composite modified fluorine-doped tin oxide electrode for sensitive and non-enzymatic electrochemical detection of glucose
SA Ansari, A Ahmed, FK Ferdousi, MA Salam, AA Shaikh, HR Barai, ...
Journal of Electroanalytical Chemistry 850, 113394, 2019
262019
Application of Atmospheric Pressure Photoionization H/D-exchange Mass Spectrometry for Speciation of Sulfur-containing Compounds
T Acter, D Kim, A Ahmed, JH Ha, S Kim
Journal of The American Society for Mass Spectrometry 28 (8), 1687-1695, 2017
232017
Structural elucidation of nitrogen-containing compounds in polar fractions using double bond equivalence distributions and hydrogen–deuterium exchange mass spectra
E Kim, E Cho, A Ahmed, YH Kim, S Kim
Fuel 194, 503-510, 2017
232017
Phytochemical Characterization of Dillenia indica L. Bark by Paper Spray Ionization-Mass Spectrometry and Evaluation of Its Antioxidant Potential Against t-BHP-Induced ¡¦
MB Alam#, A Ahmed#, S Islam, HJ Choi, Choi, MA Motin, S Kim, SH Lee
Antioxidants, 2020
212020
Application of Molecular Dynamics Simulation to Improve the Theoretical Prediction for Collisional Cross Section of Aromatic Compounds with Long Alkyl Chains in Crude Oils
D Lim, Y Park, R Chang*, A Ahmed*, S Kim*
Rapid Communications in Mass Spectrometry 33 (7), 650-656, 2019
182019
Optimization and application of atmospheric pressure chemical and photoionization hydrogen–deuterium exchange mass spectrometry for speciation of oxygen-containing compounds
T Acter, D Kim, A Ahmed, JM Jin, UH Yim, WJ Shim, YH Kim, S Kim
Analytical and bioanalytical chemistry 408 (12), 3281-3293, 2016
182016
Mechanistic study on lowering the sensitivity of positive atmospheric pressure photoionization mass spectrometric analyses: size‐dependent reactivity of solvent clusters
A Ahmed, CH Choi, S Kim
Rapid Communications in Mass Spectrometry 29, 2095-2101, 2015
182015
A Conducting Poly(N-(1-Naphthyl)ethylenediamine dihydrochloride) Nanofibers for the Sensitive and Interference-Free Detection of Dopamine
MM Rahman, A Ahmed, JJ Lee
Journal of The Electrochemical Society 165, B89-B95, 2018
162018
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