| Atmospheric pressure chemical ionization source. 1. Ionization of compounds in the gas phase FJ Andrade, JT Shelley, WC Wetzel, MR Webb, G Gamez, SJ Ray, ... Analytical chemistry 80 (8), 2646-2653, 2008 | 394 | 2008 |
| Atmospheric pressure chemical ionization source. 2. Desorption− ionization for the direct analysis of solid compounds FJ Andrade, JT Shelley, WC Wetzel, MR Webb, G Gamez, SJ Ray, ... Analytical chemistry 80 (8), 2654-2663, 2008 | 240 | 2008 |
| Use of a solution cathode glow discharge for cold vapor generation of mercury with determination by ICP-atomic emission spectrometry Z Zhu, GCY Chan, SJ Ray, X Zhang, GM Hieftje Analytical chemistry 80 (18), 7043-7050, 2008 | 176 | 2008 |
| Characterization of direct-current atmospheric-pressure discharges useful for ambient desorption/ionization mass spectrometry JT Shelley, JS Wiley, GCY Chan, GD Schilling, SJ Ray, GM Hieftje Journal of the American Society for Mass Spectrometry 20 (5), 837-844, 2011 | 166 | 2011 |
| Microplasma source based on a dielectric barrier discharge for the determination of mercury by atomic emission spectrometry Z Zhu, GCY Chan, SJ Ray, X Zhang, GM Hieftje Analytical chemistry 80 (22), 8622-8627, 2008 | 152 | 2008 |
| A new, versatile, direct-current helium atmospheric-pressure glow discharge FJ Andrade, WC Wetzel, GCY Chan, MR Webb, G Gamez, SJ Ray, ... Journal of analytical atomic spectrometry 21 (11), 1175-1184, 2006 | 143 | 2006 |
| Laser ablation coupled to a flowing atmospheric pressure afterglow for ambient mass spectral imaging JT Shelley, SJ Ray, GM Hieftje Analytical chemistry 80 (21), 8308-8313, 2008 | 134 | 2008 |
| Time-of-flight mass spectrometry for elemental analysis PP Mahoney, SJ Ray, GM Hieftje Applied spectroscopy 51 (1), 16A-28A, 1997 | 119 | 1997 |
| Hadamard transform ion mobility spectrometry AW Szumlas, SJ Ray, GM Hieftje Analytical Chemistry 78 (13), 4474-4481, 2006 | 107 | 2006 |
| Methods and apparatus for ionization and desorption using a glow discharge GM Hieftje, SJ Ray, FJ Andrade, WC Wetzel, MR Webb, G Gamez, ... US Patent 7,893,408, 2011 | 97 | 2011 |
| Electrospray ionization from nanopipette emitters with tip diameters of less than 100 nm EM Yuill, N Sa, SJ Ray, GM Hieftje, LA Baker Analytical chemistry 85 (18), 8498-8502, 2013 | 96 | 2013 |
| Laser ablation flowing atmospheric-pressure afterglow for ambient mass spectrometry GM Hieftje, FJ Andrade, SJ Ray, JT Shelley US Patent 8,207,494, 2012 | 93 | 2012 |
| Development of a direct current gas sampling glow discharge ionization source for the time-of-flight mass spectrometer JP Guzowski Jr, JAC Broekaert, SJ Ray, GM Hieftje Journal of Analytical Atomic Spectrometry 14 (8), 1121-1127, 1999 | 93 | 1999 |
| Visual observations of an atmospheric-pressure solution-cathode glow discharge AJ Schwartz, SJ Ray, E Elish, AP Storey, AA Rubinshtein, GCY Chan, ... Talanta 102, 26-33, 2012 | 80 | 2012 |
| Preliminary investigation of electrothermal vaporization sample introduction for inductively coupled plasma time-of-flight mass spectrometry PP Mahoney, SJ Ray, G Li, GM Hieftje Analytical chemistry 71 (7), 1378-1383, 1999 | 71 | 1999 |
| Determination of trace sodium, lithium, magnesium, and potassium impurities in colloidal silica by slurry introduction into an atmospheric-pressure solution-cathode glow … Z Wang, AJ Schwartz, SJ Ray, GM Hieftje Journal of Analytical Atomic Spectrometry 28 (2), 234-240, 2013 | 66 | 2013 |
| Plasma-source mass spectrometry for speciation analysis: state-of-the-art SJ Ray, F Andrade, G Gamez, D McClenathan, D Rogers, G Schilling, ... Journal of Chromatography A 1050 (1), 3-34, 2004 | 64 | 2004 |
| Nanopipettes: probes for local sample analysis A Saha-Shah, AE Weber, JA Karty, SJ Ray, GM Hieftje, LA Baker Chemical Science 6 (6), 3334-3341, 2015 | 56 | 2015 |
| Toward the next generation of atomic mass spectrometers D MYERS, S RAY Journal of Analytical Atomic Spectrometry 12 (3), 287-292, 1997 | 55 | 1997 |
| Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch− Herzog mass spectrograph GD Schilling, SJ Ray, AA Rubinshtein, JA Felton, RP Sperline, MB Denton, ... Analytical chemistry 81 (13), 5467-5473, 2009 | 54 | 2009 |
