Browsing Chemistry by Author "Boyaci, Ezel"
Now showing items 1-9 of 9
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Development of a Carbon Mesh Supported Thin Film Microextraction Membrane As a Means to Lower the Detection Limits of Benchtop and Portable GC/MS Instrumentation
Grandy, Jonathan J.; Boyaci, Ezel; Pawliszyn, Janusz (American Chemical Society, 2015-12-18)In this work, a durable and easy to handle thin film microextraction (TFME) device is reported. The membrane is comprised of poly(divinylbenzene) (DVB) resin particles suspended in a high-density polydimethylsiloxane (PDMS) ... -
Fast Quantitation of Target Analytes in Small Volumes of Complex Samples by Matrix-Compatible Solid-Phase Microextraction Devices
Piri-Moghadam, Hamed; Ahmadi, Fardin; Reyes-Garcés, Nathaly; Boyaci, Ezel; Reyes-Garces, Nathaly; Aghakhani, Ali; Bojko, Barbara; Pawliszyn, Janusz (Wiley, 2017-06-20)Herein we report the development of solid-phase microextraction (SPME) devices designed to perform fast extraction/enrichment of target analytes present in small volumes of complex matrices (i.e. V <= 10 mu L). Micro-sampling ... -
Micelle Assisted Thin-Film Solid Phase Microextraction: A New Approach for Determination of Quaternary Ammonium Compounds in Environmental Samples
Boyaci, Ezel; Pawliszyn, Janusz (American Chemical Society, 2014-08-22)Determination of quaternary ammonium compounds (QACs) often is considered to be a challenging undertaking owing to secondary interactions of the analytes’ permanently charged quaternary ammonium head or hydrophobic tail ... -
Micelle assisted thin-film solid phase microextraction: a new approach for determination of quaternary ammonium compounds in environmental samples
Boyaci, Ezel; Pawliszyn, Janusz (ACS, 2014)Determination of quaternary ammonium compounds (QACs) often is considered to be a challenging undertaking owing to secondary interactions of the analytes’ permanently charged quaternary ammonium head or hydrophobic tail ... -
New Generation of Solid-Phase Microextraction Coatings for Complementary Separation Approaches: A Step toward Comprehensive Metabolomics and Multiresidue Analyses in Complex Matrices
Gionfriddo, Emanuela; Boyaci, Ezel; Pawliszyn, Janusz (American Chemical Society, 2017-04-04)In this work, a new generation of solid-phase microextraction (SPME) coatings based on polytetrafluoro-ethylene amorphous fluoroplastics (PTFE AF 2400) as a particle binder is presented. The developed coating was tested ... -
Quantitative analysis of biofluid spots by coated blade spray mass spectrometry, a new approach to rapid screening
Boyaci, Ezel; Gómez-Ríos, Germán Augusto; Pawliszyn, Janusz; Poole, Justen J.; Tascon, Marcos; Reyes-Garcés, Nathaly (Springer Nature, 2017-11-23)This study demonstrates the quantitative capabilities of coated blade spray (CBS) mass spectrometry (MS) for the concomitant analysis of multiple target substances in biofluid spots. In CBS-MS the analytes present in a ... -
Rapid determination of immunosuppressive drug concentrations in whole blood by coated blade spray-tandem mass spectrometry (CBS-MS/MS)
Gómez-Ríos, Germán Augusto; Tascon, Marcos; Reyes-Garcés, Nathaly; Boyaci, Ezel; Poole, Justen J.; Pawliszyn, Janusz (Elsevier, 2018-01-25)Coated Blade Spray (CBS) is a technology that efficiently integrates sample preparation and direct coupling to mass spectrometry (MS) on a single device. In this article, we present CBS-tandem mass spectrometry (CBS-MS/MS) ... -
A study of thin film solid phase microextraction methods for analysis of fluorinated benzoic acids in seawater
Boyaci, Ezel; Goryński, Krzysztof; Viteri, C. Ricardo; Pawliszyn, Janusz (Elsevier, 2016-03-04)Fluorinated benzoic acids (FBAs) are frequently used as tracers by the oil industry to characterize petroleum reservoirs. The demand for fast, reliable, robust, and sensitive approaches to separate and quantify FBAs in ... -
Time Weighted Average Concentration Monitoring Based on Thin Film Solid Phase Microextraction
Ahmadi, Fardin; Sparham, Chris; Boyaci, Ezel; Pawliszyn, Janusz (American Chemical Society, 2017-04-04)Time weighted average (TWA) passive sampling with thin film solid: phase micro extraction (TF-SPME) and liquid chromatography tandem mass spectrometry (LC-MS/MS) was used for collection, identification, and quantification ...