Search Results - "Syage, Jack A."

Recent developments in atmospheric pressure photoionization‐mass spectrometry by Kauppila, Tiina J., Syage, Jack A., Benter, Thorsten

“…Recent developments in atmospheric pressure photoionization (APPI), which is one of the three most important ionization techniques in liquid…”
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Ultra Performance Liquid Chromatography−Atmospheric Pressure Photoionization-Tandem Mass Spectrometry for High-Sensitivity and High-Throughput Analysis of U.S. Environmental Protection Agency 16 Priority Pollutants Polynuclear Aromatic Hydrocarbons by Cai, Sheng-Suan, Syage, Jack A, Hanold, Karl A, Balogh, Michael P

“…In this work, we demonstrate the utility of ultra performance liquid chromatography−atmospheric pressure photoionization-tandem mass spectrometry…”
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Mechanism of [M + H] + formation in photoionization mass spectrometry by Syage, Jack A.

“…In this paper we examine the mechanism of [M + H] + (henceforth MH +) formation by direct photoionization. Based on comparisons of the relative abundance of M…”
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Atmospheric Pressure Photoionization. 1. General Properties for LC/MS by Hanold, Karl A., Fischer, Stephen M., Cormia, Patricia H., Miller, Christine E., Syage, Jack A.

“…In this work, we describe the performance of an atmospheric pressure photoionization (APPI) source for sampling liquid flows. The results presented here…”
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Atmospheric pressure photoionization mass spectrometry for analysis of fatty acid and acylglycerol lipids by Cai, Sheng-Suan, Syage, Jack A.

“…In this work, we optimize parameters and conditions for analysis of fatty acid ester and acylglycerol lipids by atmospheric pressure photoionization-mass…”
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Liquid chromatography–atmospheric pressure photoionization-mass spectrometry analysis of triacylglycerol lipids—Effects of mobile phases on sensitivity by Cai, Sheng-Suan, Short, Luke Chandler, Syage, Jack A., Potvin, Michael, Curtis, Jonathan M.

“…In this work, we evaluate the performance of liquid chromatography–atmospheric pressure photoionization-mass spectrometry (LC–APPI-MS) for non-aqueous reversed…”
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Determination of gluten consumption in celiac disease patients on a gluten-free diet by Syage, Jack A, Kelly, Ciarán P, Dickason, Matthew A, Ramirez, Angel Cebolla, Leon, Francisco, Dominguez, Remedios, Sealey-Voyksner, Jennifer A

“…Celiac disease (CD) patients adhering to a gluten-free diet (GFD) are exposed frequently to low levels of gluten that contribute to symptoms and persistent…”
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Latiglutenase Protects the Mucosa and Attenuates Symptom Severity in Patients With Celiac Disease Exposed to a Gluten Challenge by Murray, Joseph A., Syage, Jack A., Wu, Tsung-Teh, Dickason, Matthew A., Ramos, Ana G., Van Dyke, Carol, Horwath, Irina, Lavin, Philip T., Mäki, Markku, Hujoel, Isabel, Papadakis, Konstantinos A., Bledsoe, Adam C., Khosla, Chaitan, Sealey-Voyksner, Jennifer A., Hinson, Chad, Loskutov, Vasiliy, Norum, Anna, Linberg, Steven, Goldkind, Lawrence, Isola, Jorma, Voyksner, Robert, Luong, Pauline, Baldwin, Matthew, Nezzer, Jennifer

“…Gluten ingestion in patients with celiac disease can lead to gastrointestinal symptoms and small intestinal mucosal injury. This gluten challenge phase 2 trial…”
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Latiglutenase Improves Symptoms in Seropositive Celiac Disease Patients While on a Gluten-Free Diet by Syage, Jack A., Murray, Joseph A., Green, Peter H. R., Khosla, Chaitan

“…Background and Aims Celiac disease (CD) is a widespread condition triggered by dietary gluten and treated with a lifelong gluten-free diet (GFD); however,…”
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A Composite Morphometric Duodenal Biopsy Mucosal Scale for Celiac Disease Encompassing Both Morphology and Inflammation by Syage, Jack A, Mäki, Markku, Leffler, Daniel A, Silvester, Jocelyn A, Sealey-Voyksner, Jennifer A, Wu, Tsung-Teh, Murray, Joseph A

“…Villus height to crypt depth ratio (Vh:Cd) and intraepithelial lymphocytes (IEL) are key measures of histology of the small intestine in celiac disease…”
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Ultra high performance liquid chromatography–atmospheric pressure photoionization-mass spectrometry for high-sensitivity analysis of US Environmental Protection Agency sixteen priority pollutant polynuclear aromatic hydrocarbons in oysters by Cai, Sheng-Suan, Stevens, Joan, Syage, Jack A.

“…► APPI based UHPLC–MS method was developed for analysis of US EPA 16 PAHs in oysters. ► Linear ranges covered 3.6–5.1 (Ave. 4.4) orders of magnitude with R2 of…”
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Celiac Disease Patients Practicing a Gluten-Free Diet Still Consume Unsafe Levels of Gluten by Syage, Jack A, Dickason, Matthew A, Sealey Voyksner, Jennifer A

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APPI-MS: Effects of Mobile Phases and VUV Lamps on the Detection of PAH Compounds by Short, Luke Chandler, Cai, Sheng-Suan, Syage, Jack A.

“…The technique of atmospheric pressure photoionization (APPI) has several advantages over electrospray ionization (ESI) and atmospheric pressure chemical…”
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Direct Sampling of Chemical Weapons in Water by Photoionization Mass Spectrometry by Syage, Jack A., Cai, Sheng-Suan, Li, Jianwei, Evans, Matthew D.

“…The vulnerability of water supplies to toxic contamination calls for fast and effective means for screening water samples for multiple threats. We describe the…”
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Comparison of Atmospheric Pressure Photoionization, Atmospheric Pressure Chemical Ionization, and Electrospray Ionization Mass Spectrometry for Analysis of Lipids by Cai, Sheng-Suan, Syage, Jack A.

“…In this work, we compare the quantitative accuracy and sensitivity of analyzing lipids by atmospheric pressure photoionization (APPI), atmospheric pressure…”
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Are Clusters Important in Understanding the Mechanisms in Atmospheric Pressure Ionization? Part 1: Reagent Ion Generation and Chemical Control of Ion Populations by Klee, Sonja, Derpmann, Valerie, Wißdorf, Walter, Klopotowski, Sebastian, Kersten, Hendrik, Brockmann, Klaus J., Benter, Thorsten, Albrecht, Sascha, Bruins, Andries P., Dousty, Faezeh, Kauppila, Tiina J., Kostiainen, Risto, O’Brien, Rob, Robb, Damon B., Syage, Jack A.

“…It is well documented since the early days of the development of atmospheric pressure ionization methods, which operate in the gas phase, that cluster ions are…”
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Oral Latiglutenase Improves Chronic Symptoms in Seropositive Celiac Disease Patients by Syage, Jack A, Murray, Joseph A, Green, Peter H.R, Khosla, Chaitan, Adelman, Daniel C, Sealey Voyksner, Jennifer A

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Comparison of Atmospheric Pressure Photoionization and Atmospheric Pressure Chemical Ionization for Normal-Phase LC/MS Chiral Analysis of Pharmaceuticals by Cai, Sheng-Suan, Hanold, Karl A, Syage, Jack A

“…In this work, we compared APPI and APCI for normal-phase LC/MS chiral analysis of five pharmaceuticals. Performance was compared both by FIA and by on-column…”
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Picosecond studies of proton transfer in clusters. 2. Dynamics and energetics of solvated phenol cation by Steadman, Jhobe, Syage, Jack A

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Electrospray ionization/atmospheric pressure photoionization multimode source for low-flow liquid chromatography/mass spectrometric analysis by Short, Luke C., Hanold, Karl A., Cai, Sheng-Suan, Syage, Jack A.

“…Analysis of several polar and non‐polar compounds is performed with a newly developed dual electrospray ionization/atmospheric pressure photoionization…”
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