| Chaotropic effects in sub/supercritical fluid chromatography via ammonium hydroxide in water-rich modifiers: enabling separation of peptides and highly polar pharmaceuticals at … J Liu, AA Makarov, R Bennett, IA Haidar Ahmad, J DaSilva, M Reibarkh, ... Analytical chemistry 91 (21), 13907-13915, 2019 | 60 | 2019 |
| The emergence of universal chromatographic methods in the research and development of new drug substances EL Regalado, IA Haidar Ahmad, R Bennett, V D’Atri, AA Makarov, ... Accounts of chemical research 52 (7), 1990-2002, 2019 | 53 | 2019 |
| Determining the absolute, chemical-heterogeneity-corrected molar mass averages, distribution, and solution conformation of random copolymers IA Haidar Ahmad, AM Striegel Analytical and bioanalytical chemistry 396, 1589-1598, 2010 | 48 | 2010 |
| Introducing online multicolumn two-dimensional liquid chromatography screening for facile selection of stationary and mobile phase conditions in both dimensions H Wang, HR Herderschee, R Bennett, M Potapenko, CJ Pickens, ... Journal of Chromatography A 1622, 460895, 2020 | 43 | 2020 |
| Measuring the size of polymers with negative radii using MALS/QELS: an exploration of the thermodynamic radius MJ Smith, IA Haidar, AM Striegel Analyst 132 (5), 455-460, 2007 | 36 | 2007 |
| Multi-column ultra-high performance liquid chromatography screening with chaotropic agents and computer-assisted separation modeling enables process development of new drug … IAH Ahmad, W Chen, HM Halsey, A Klapars, J Limanto, GF Pirrone, ... Analyst 144 (9), 2872-2880, 2019 | 35 | 2019 |
| Enhanced fluidity liquid chromatography: A guide to scaling up from analytical to preparative separations R Bennett, M Biba, J Liu, IAH Ahmad, MB Hicks, EL Regalado Journal of Chromatography A 1595, 190-198, 2019 | 34 | 2019 |
| How does sequence length heterogeneity affect the dilute solution conformation of copolymers? IAH Ahmad, DA Striegel, AM Striegel Polymer 52 (5), 1268-1277, 2011 | 31 | 2011 |
| Mapping the separation landscape in two-dimensional liquid chromatography: blueprints for efficient analysis and purification of pharmaceuticals enabled by computer-assisted … DM Makey, V Shchurik, H Wang, HR Lhotka, DR Stoll, A Vazhentsev, ... Analytical Chemistry 93 (2), 964-972, 2020 | 30 | 2020 |
| Generic enhanced sub/supercritical fluid chromatography: blueprint for highly productive and sustainable separation of primary hindered amines JO DaSilva, D Lehnherr, J Liu, R Bennett, IA Haidar Ahmad, M Hicks, ... ACS sustainable chemistry & engineering 8 (15), 6011-6021, 2020 | 30 | 2020 |
| A simplified guide for charged aerosol detection of non-chromophoric compounds—analytical method development and validation for the HPLC assay of aerosol particle size … A Soliven, IAH Ahmad, J Tam, N Kadrichu, P Challoner, R Markovich, ... Journal of pharmaceutical and biomedical analysis 143, 68-76, 2017 | 30 | 2017 |
| Optimization of gradient reversed phase chromatographic peak capacity for low molecular weight solutes A Soliven, IAH Ahmad, MR Filgueira, PW Carr Journal of Chromatography A 1273, 57-65, 2013 | 30 | 2013 |
| Enantioselective UHPLC Screening Combined with In Silico Modeling for Streamlined Development of Ultrafast Enantiopurity Assays GL Losacco, H Wang, IA Haidar Ahmad, J DaSilva, AA Makarov, ... Analytical Chemistry 94 (3), 1804-1812, 2021 | 29 | 2021 |
| Revealing the inner workings of the power function algorithm in Charged Aerosol Detection: A simple and effective approach to optimizing power function value for quantitative … IAH Ahmad, A Blasko, J Tam, N Variankaval, HM Halsey, R Hartman, ... Journal of Chromatography A 1603, 1-7, 2019 | 29 | 2019 |
| Generic anion-exchange chromatography method for analytical and preparative separation of nucleotides in the development and manufacture of drug substances FR Tsay, IAH Ahmad, D Henderson, N Schiavone, Z Liu, AA Makarov, ... Journal of Chromatography A 1587, 129-135, 2019 | 29 | 2019 |
| Necessary analytical skills and knowledge for identifying, understanding, and performing HPLC troubleshooting IA Haidar Ahmad Chromatographia 80 (5), 705-730, 2017 | 24 | 2017 |
| Introducing multifactorial peak crossover in analytical and preparative chromatography via computer-assisted modeling IA Haidar Ahmad, V Shchurik, T Nowak, BF Mann, EL Regalado Analytical Chemistry 92 (19), 13443-13451, 2020 | 19 | 2020 |
| Comprehensive online multicolumn two-dimensional liquid chromatography-diode array detection-mass spectrometry workflow as a framework for chromatographic screening and … CJ Pickens, IA Haidar Ahmad, AA Makarov, R Bennett, BF Mann, ... Analytical and bioanalytical chemistry 412, 2655-2663, 2020 | 19 | 2020 |
| Mapping the separation landscape of pharmaceuticals: rapid and efficient scale-up of preparative purifications enabled by computer-assisted chromatographic method development R Bennett, IA Haidar Ahmad, J DaSilva, M Figus, K Hullen, FR Tsay, ... Organic Process Research & Development 23 (12), 2678-2684, 2019 | 19 | 2019 |
| In Silico Multifactorial Modeling for Streamlined Development and Optimization of Two-Dimensional Liquid Chromatography IA Haidar Ahmad, DM Makey, H Wang, V Shchurik, AN Singh, DR Stoll, ... Analytical Chemistry 93 (33), 11532-11539, 2021 | 18 | 2021 |
Erik L. RegaladoAnalytical Research and Development, Merck Research Laboratories, Merck & Co., Inc.Verified email at merck.com
