S. Ray

发表

Microplasma source based on a dielectric barrier discharge for the determination of mercury by atomic emission spectrometry.

G. Hieftje, Xinrong Zhang, Zhenli Zhu, 2008, Analytical chemistry.

A new, versatile, direct-current helium atmospheric-pressure glow discharge

Michael R. Webb, G. Gamez, F. Andrade, 2006 .

Electrospray ionization from nanopipette emitters with tip diameters of less than 100 nm.

L. A. Baker, Elizabeth M. Yuill, Niya Sa, 2013, Analytical chemistry.

Distance-of-flight mass spectrometry: a new paradigm for mass separation and detection.

G. Hieftje, C. Enke, D. Koppenaal, 2012, Annual review of analytical chemistry.

RECENT ADVANCES IN INSTRUMENTAL APPROACHES TO TIME-OF-FLIGHT MASS SPECTROMETRY.

S. Ray, A. J. Schwartz, C. Brais, 2020, Mass spectrometry reviews.

Laser-ablation sampling for inductively coupled plasma distance-of-flight mass spectrometry

G. Hieftje, C. Enke, D. Koppenaal, 2015 .

Microplasma-based flowing atmospheric-pressure afterglow (FAPA) source for ambient desorption-ionization mass spectrometry.

G. Hieftje, S. Ray, A. Storey, 2017, Analytica chimica acta.

Use of Interrupted Helium Flow in the Analysis of Vapor Samples with Flowing Atmospheric-Pressure Afterglow-Mass Spectrometry

G. Hieftje, S. Ray, A. Storey, 2017, Journal of The American Society for Mass Spectrometry.

Helium conservation by discontinuous introduction in the flowing atmospheric-pressure afterglow source for ambient desorption-ionization mass spectrometry

G. Hieftje, S. Ray, A. Storey, 2015 .

Halo-shaped flowing atmospheric pressure afterglow: a heavenly design for simplified sample introduction and improved ionization in ambient mass spectrometry.

G. Hieftje, G. C. Chan, S. Ray, 2013, Analytical chemistry.

Characterization of direct-current atmospheric-pressure discharges useful for ambient desorption/ionization mass spectrometry

J. S. Wiley, G. Hieftje, Gregory D. Schilling, 2009, Journal of the American Society for Mass Spectrometry.

Electrospray Ionization Time-Of-Flight Mass Spectrometer for Elemental Analysis

G. Hieftje, S. Ray, P. Mahoney, 1997 .

Visual observations of an atmospheric-pressure solution-cathode glow discharge.

G. Hieftje, G. C. Chan, S. Ray, 2012, Talanta.

Constant-Momentum Acceleration Time-of-Flight Mass Spectrometry with Energy Focusing

G. Hieftje, C. Enke, D. Koppenaal, 2013, Journal of The American Society for Mass Spectrometry.

How Constant Momentum Acceleration Decouples Energy and Space Focusing in Distance–of–Flight and Time–of–Flight Mass Spectrometries

G. Hieftje, C. Enke, D. Koppenaal, 2013, Journal of The American Society for Mass Spectrometry.

Distance-of-Flight Mass Spectrometry with IonCCD Detection and an Inductively Coupled Plasma Source

G. Hieftje, C. Enke, D. Koppenaal, 2016, Journal of The American Society for Mass Spectrometry.

Extension of the focusable mass range in distance-of-flight mass spectrometry with multiple detectors.

G. Hieftje, C. Enke, D. Koppenaal, 2012, Rapid communications in mass spectrometry : RCM.

Use of Gradient Dilution to Detect and Correct Matrix Interferences in Inductively Coupled Plasma–Time-of-Flight Mass Spectrometry (ICP-TOFMS)

G. Hieftje, S. Ray, A. J. Schwartz, 2016, Applied spectroscopy.

Detection and correction of matrix interference in inductively coupled plasma – time of flight mass spectrometry by means of aerosol dispersion

G. Hieftje, S. Ray, Yan Cheung, 2016 .

Time-of-Flight Mass Spectrometry for Elemental Analysis

G. Hieftje, S. Ray, P. Mahoney, 1997 .

Development of a direct current gas sampling glow discharge ionization source for the time-of-flight mass spectrometer

G. Hieftje, S. Ray, J. Broekaert, 1999 .

Atmospheric pressure chemical ionization source. 1. Ionization of compounds in the gas phase.

Steven J Ray, Gerardo Gamez, Francisco J Andrade, 2008, Analytical chemistry.

Plasma-source mass spectrometry for speciation analysis: state-of-the-art.

G. Gamez, F. Andrade, G. Hieftje, 2004, Journal of chromatography. A.

Universal anion detection by replacement-ion chromatography with an atmospheric-pressure solution-cathode glow discharge photometric detector.

G. Hieftje, S. Ray, Z. Wang, 2013, Analytical Chemistry.

An electrospray/inductively coupled plasma dual-source time-of-flight mass spectrometer for rapid metallomic and speciation analysis: instrument design

G. Hieftje, S. Ray, D. Rogers, 2009 .

Novel flow injection strategies for study and control of matrix interferences by inductively coupled plasma time-of-flight mass spectrometry

G. Hieftje, S. Ray, Denise M. McClenathan, 2001 .

Modulation of the solution-cathode glow-discharge and solution-anode glow discharge using a rotating magnetic field

S. Ray, J. Orejas, N. Hazel, 2021 .

Evaluation of solution-cathode glow discharge atomic emission spectrometry for the analysis of nanoparticle containing solutions

S. Ray, J. Orejas, N. Hazel, 2021 .

Spatially resolved measurements to improve analytical performance of solution-cathode glow discharge optical-emission spectrometry

G. Hieftje, S. Ray, A. J. Schwartz, 2016 .

Evaluation of interference filters for spectral discrimination in solution-cathode glow discharge optical emission spectrometry

G. Hieftje, S. Ray, A. J. Schwartz, 2016 .

Automatable on-line generation of calibration curves and standard additions in solution-cathode glow discharge optical emission spectrometry

G. Hieftje, S. Ray, A. J. Schwartz, 2015 .

Nanopipettes: probes for local sample analysis† †Electronic supplementary information (ESI) available. See DOI: 10.1039/c5sc00668f Click here for additional data file.

Gary M. Hieftje, L. A. Baker, J. Karty, 2015, Chemical science.

An electrospray/inductively coupled plasma dual-source time-of-flight mass spectrometer for rapid metallomic and speciation analysis. Part 2. Atomic channel and dual-channel characterization.

G. Hieftje, S. Ray, D. Rogers, 2010, Metallomics : integrated biometal science.

An electrospray/inductively coupled plasma dual-source time-of-flight mass spectrometer for rapid metallomic and speciation analysis. Part 1. Molecular channel characterization.

G. Hieftje, S. Ray, D. Rogers, 2010, Metallomics : integrated biometal science.

Use of a nano-electrospray/inductively coupled plasma dual-source time-of-flight mass spectrometer for chromium speciation

G. Hieftje, S. Ray, D. Rogers, 2010 .

Laser ablation coupled to a flowing atmospheric pressure afterglow for ambient mass spectral imaging.

G. Hieftje, S. Ray, J. Shelley, 2008, Analytical chemistry.

Determination of trace sodium, lithium, magnesium, and potassium impurities in colloidal silica by slurry introduction into an atmospheric-pressure solution-cathode glow discharge and atomic emission spectrometry

Z. Wang, G. Hieftje, S. Ray, 2013 .

Atmospheric pressure chemical ionization source. 2. Desorption-ionization for the direct analysis of solid compounds.

Michael R. Webb, G. Gamez, F. Andrade, 2008, Analytical chemistry.

Use of a solution cathode glow discharge for cold vapor generation of mercury with determination by ICP-atomic emission spectrometry.

G. Hieftje, Xinrong Zhang, Zhenli Zhu, 2008, Analytical chemistry.

Abstracts of Papers Presented at the 2008 Pittsburgh Conference

Ming Gu, Balaji Viswanathan, Scott Ramos, 2009, Journal of automated methods & management in chemistry.

New inductively coupled plasma for atomic spectrometry: the microwave-sustained, inductively coupled, atmospheric-pressure plasma (MICAP)

G. Hieftje, J. Jevtic, S. Ray, 2016 .

Toward a Fuller Understanding of Analytical Atomic Spectrometry

G. Gamez, G. Hieftje, A. Leach, 2002, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry.

Effect of internal and external conditions on ionization processes in the FAPA ambient desorption/ionization source

G. Hieftje, A. Sanz-Medel, S. Ray, 2014, Analytical and Bioanalytical Chemistry.

Microwave plasma torch — atmospheric-sampling glow discharge modulated tandem source for the sequential acquisition of molecular fragmentation and atomic mass spectra

Gary M. Hieftje, G. Hieftje, S. Ray, 2001 .

Continuum background reduction in orthogonal-acceleration time-of-flight mass spectrometry with continuous ion sources

G. Hieftje, Gangqiang Li, S. Ray, 1997 .

Distance-of-Flight Mass Spectrometry: What, Why, and How?

G. Hieftje, C. Enke, S. Ray, 2016, Journal of The American Society for Mass Spectrometry.

Toward the Next Generation of Atomic MassSpectrometers

G. Hieftje, Gangqiang Li, S. Ray, 1997 .

Mass analyzers for inductively coupled plasma time-of-flight mass spectrometry

G. Hieftje, S. Ray, 2001 .

Evolution and revolution in instrumentation for plasma-source mass spectrometry

O. Grøn, G. Hieftje, W. Wetzel, 2001 .

Preliminary investigation of electrothermal vaporization sample introduction for inductively coupled plasma time-of-flight mass spectrometry.

G. Hieftje, S. Ray, P. Mahoney, 1999, Analytical chemistry.

The use of a digital micromirror array as a temporal gate and spatial-filtering device for laser-induced breakdown spectroscopy and laser ablation molecular isotopic spectrometry

S. Ray, K. Williams, George C Y Chan, 2021 .

Emergence and consequences of lateral sample heterogeneity in glow discharge spectrometry

C. Engelhard, W. Buscher, G. Hieftje, 2016 .

Thermal mechanism for formation of electrical prepeak and pressure waves in a microsecond direct current pulsed glow discharge with a Grimm-type source: a modeling investigation

C. Engelhard, W. Buscher, G. Hieftje, 2012 .

Evaluation of Ultrasonic Nebulization for the Analysis of Transient Samples: A Theoretical Model and Practical Considerations

S. Ray, B. Pack, R. Potyrailo, 1998 .

A Novel Combined Microstrip Resonator/NanoSpray Ionization Source for Microwave-Assisted Trypsin Digestion of Proteins.

S. Ray, Maria E Rivera-Albarran, 2020, Journal of the American Society for Mass Spectrometry.

First inductively coupled plasma-distance-of-flight mass spectrometer: instrument performance with a microchannel plate/phosphor imaging detector

G. Hieftje, C. Enke, D. Koppenaal, 2013 .

Atomic Spectroscopy: Introduction

G. Hieftje, S. Ray, 2009 .

Evaluation of a fourth-generation focal plane camera for use in plasma-source mass spectrometry

G. Hieftje, D. Koppenaal, C. Barinaga, 2011 .

First Distance-of-Flight Instrument: Opening a New Paradigm in Mass Spectrometry

G. Hieftje, C. Enke, D. Koppenaal, 2011, Journal of the American Society for Mass Spectrometry.

Characterization of a third-generation Faraday-strip array detector coupled to a Mattauch-Herzog geometry mass spectrograph with a dc-glow discharge ionization source

G. Hieftje, D. Koppenaal, C. Barinaga, 2010 .

Optimization of Ag isotope-ratio precision with a 128-Channel array detector coupled to a Mattauch-Herzog mass spectrograph

G. Hieftje, D. Koppenaal, C. Barinaga, 2010 .

Evaluation of a 512-channel Faraday-strip array detector coupled to an inductively coupled plasma Mattauch-Herzog mass spectrograph.

G. Hieftje, D. Koppenaal, C. Barinaga, 2009, Analytical chemistry.

Interleaved Distance-of-Flight Mass Spectrometry: A Simple Method to Improve the Instrument Duty Factor

G. Hieftje, C. Enke, D. Koppenaal, 2013, Journal of The American Society for Mass Spectrometry.

Inductively Coupled Plasma Zoom–Time-of-Flight Mass Spectrometry

G. Hieftje, C. Enke, S. Ray, 2016, Journal of The American Society for Mass Spectrometry.

Zoom-TOFMS: addition of a constant-momentum-acceleration “zoom” mode to time-of-flight mass spectrometry

G. Hieftje, C. Enke, D. Koppenaal, 2014, Analytical and Bioanalytical Chemistry.

Measurement and Visualization of Mass Transport for the Flowing Atmospheric Pressure Afterglow (FAPA) Ambient Mass-Spectrometry Source

G. Hieftje, S. Ray, K. Pfeuffer, 2014, Journal of The American Society for Mass Spectrometry.

Hadamard transform ion mobility spectrometry.

Andrew W. Szumlas, Steven J Ray, G. Hieftje, 2006, Analytical chemistry.

Glow discharge imaging spectroscopy with a novel acousto-optical imaging spectrometer

C. Engelhard, W. Buscher, G. Hieftje, 2012 .

Development of a pulsed radio frequency glow discharge for three-dimensional elemental surface imaging. 1. Application to biopolymer analysis.

Michael R. Webb, G. Gamez, F. Andrade, 2007, Analytical chemistry.

“A convolution approach to calculating the m/z-Dependent mass analyzer response in orthogonal acceleration time-of-flight mass spectrometers.”

S. Ray, C. Brais, 2021, International Journal of Mass Spectrometry.

Pressure waves generated in a Grimm-type pulsed glow discharge source and their influence on discharge parameters

C. Engelhard, W. Buscher, G. Hieftje, 2011 .

Spot patterns and instabilities in a pulsed low-pressure rf glow discharge

C. Engelhard, W. Buscher, G. Hieftje, 2014 .

The solution-cathode glow discharge in slow motion: characterization of glow discharge filament structure and droplet ejection using a rectangular capillary

S. Ray, J. Orejas, N. Hazel, 2021, Spectrochimica Acta Part B: Atomic Spectroscopy.

Surface elemental mapping via glow discharge optical emission spectroscopy

J. Michler, G. Gamez, G. Hieftje, 2012 .

Visualization of mass transport and heat transfer in the FAPA ambient ionization source

G. Hieftje, S. Ray, J. Shelley, 2013 .

Detection of counterfeit electronic components through ambient mass spectrometry and chemometrics.

Jack Caldwell, Steven J Ray, Kevin P Pfeuffer, 2014, The Analyst.

Atmospheric pressure chemical ionization source. 2. Desorption-ionization for the direct analysis of solid compounds.

Michael R. Webb, G. Gamez, F. Andrade, 2008, Analytical chemistry.

Characterization of direct-current atmospheric-pressure discharges useful for ambient desorption/ionization mass spectrometry

J. S. Wiley, G. Hieftje, Gregory D. Schilling, 2009, Journal of the American Society for Mass Spectrometry.

Plasma source TOFMS

G. Hieftje, S. Ray, Denise M. McClenathan, 2004 .