Browsing Chemistry by Author "Gionfriddo, Emanuela"
Now showing items 1-15 of 15
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Coupling solid phase microextraction to complementary separation platforms for metabotyping of E. coli metabolome in response to natural antibacterial agents
Mousavi, Fatemeh; Gionfriddo, Emanuela; Carasek, Eduardo; Souza-Silva, Erica A.; Pawliszyn, Janusz (Springer, 2016-11-02)Introduction Essential oils are known to possess antimicrobial activity; thus, their use has played an important role over the years in medicine and for food preservation purposes. Objective The effect of clove oil and its ... -
Development and validation of a fully automated solid phase microextraction high throughput method for quantitative analysis of multiresidue veterinary drugs in chicken tissue
Khaled, Abir; Gionfriddo, Emanuela; Acquaro Jr, Vinicius; Singh, Varoon; Pawliszyn, Janusz (Elsevier, 2019-05-16)This paper presents the development and validation of a fully automated, high-throughput multiclass, multiresidue method for quantitative analysis of 77 veterinary drugs in chicken muscle via direct immersion solid phase ... -
Development and validation of eco-friendly strategies based on thin film microextraction for water analysis
Piri-Moghadam, Hamed; Gionfriddo, Emanuela; Grandy, Jonathan J.; Alam, Md. Nazmul; Pawliszyn, Janusz (Elsevier, 2018-12-07)The aim of the current study is the establishment of Green Analytical Chemistry strategies for water analysis by elimination/reduction of hazardous chemicals, energy consumption, and waste generation throughout the entire ... -
Development of Needle Trap Technology for On-Site Determinations: Active and Passive Sampling
Asl-Hariri, Saba; Gómez-Ríos, Germán Augusto; Gionfriddo, Emanuela; Dawes, Peter; Pawliszyn, Janusz (American Chemical Society, 2014-05-19)This study presents a thorough evaluation of new prototypes of extended tip needle trap devices (NT), as well as their application to in situ sampling of biological emissions and active/passive on-site sampling of indoor ... -
Development of Needle Trap Technology for On-Site Determinations: Active and Passive Sampling
Asl-Hariri, Saba; Gómez-Ríos, Germán Augusto; Gionfriddo, Emanuela; Dawes, Peter; Pawliszyn, Janusz (ACS, 2014)This study presents a thorough evaluation of new prototypes of extended tip needle trap devices (NT), as well as their application to in situ sampling of biological emissions and active/passive on-site sampling of indoor ... -
Direct immersion solid-phase microextraction analysis of multi-class contaminants in edible seaweeds by gas chromatography-mass spectrometry
Zhang, Li; Gionfriddo, Emanuela; Acquaro Jr, Vinicius; Pawliszyn, Janusz (Elsevier, 2018-11-15)The present work aimed at the development of a simple and accurate direct immersion-solidphase microextraction-gas-chromatography-mass spectrometry (DI-SPME-GC-MS) method for simultaneous determination of PAHs, PCBs, and ... -
Exploiting the tunable selectivity features of polymeric ionic liquid-based SPME sorbents in food analysis
Gionfriddo, Emanuela; Souza-Silva, Erica A.; Ho, Tien D.; Anderson, Jared L.; Pawliszyn, Janusz (Elsevier, 2018-10-01)In this work, the performances of polymeric ionic liquid (PIL) based solid-phase microextraction (SPME) coatings were assessed for applications concerning food safety and quality. Two different polymeric ionic liquid ... -
A facile and fully automated on-fiber derivatization protocol for direct analysis of short-chain aliphatic amines using a matrix compatible solid-phase microextraction coating
Gionfriddo, Emanuela; Passarini, Alice; Pawliszyn, Janusz (Elsevier, 2017-07-29)Solid-phase microextraction (SPME) analysis of short-chain aliphatic amines (C-3-C-6) in aqueous solutions was investigated using pentafluorobenzaldehyde (PFBAY) as on-fiber derivatization reagent. A standard gas generating ... -
Headspace versus Direct Immersion Solid Phase Microextraction in Complex Matrixes: Investigation of Analyte Behavior in Multicomponent Mixtures
Gionfriddo, Emanuela; Souza-Silva, Erica A.; Pawliszyn, Janusz (American Chemical Society, 2015-07-21)This work aims to investigate the behavior of analytes in complex mixtures and matrixes with the use of solid-phase microextraction (SPME). Various factors that influence analyte uptake such as coating chemistry, extraction ... -
Insights into the Effect of the PDMS-Layer on the Kinetics and Thermodynamics of Analyte Sorption onto the Matrix-Compatible Solid Phase Microextraction Coating
Souza-Silva, Erica A.; Gionfriddo, Emanuela; Alam, Md. Nazmul; Pawliszyn, Janusz (American Chemical Society, 2017-03-07)The currently presented research investigated the performance of matrix compatible PDMS-overcoated fibers (PDMS-DVB/PDMS) as compared to unmodified PDMS/ DVB coatings using aqueous samples and employing a wide range of ... -
Inter-laboratory validation of a thin film microextraction technique for determination of pesticides in surface water samples
Piri-Moghadam, Hamed; Gionfriddo, Emanuela; Rodriguez-Lafuente, Angel; Grandy, Jonathan J.; Lord, Heather L.; Obal, Terry; Pawliszyn, Janusz (Elsevier, 2017-04-29)The primary goal of the present study is the inter-laboratory evaluation of a thin film microextraction (TFME) technique to be used as an alternative approach to liquid-liquid extraction (LLE). Polydimethylsiloxane/ ... -
Methodical evaluation and improvement of matrix compatible PDMS-overcoated coating for direct immersion solid phase microextraction gas chromatography (DI-SPME-GC)-based applications
Souza-Silva, Erica A.; Gionfriddo, Emanuela; Shirey, Robert; Sidisky, Len; Pawliszyn, Janusz (Elsevier, 2017-05-12)The main quest for the implementation of direct SPME to complex matrices has been the development of matrix compatible coatings that provide sufficient sensitivity towards the target analytes. In this context, we present ... -
A new and efficient Solid Phase Microextraction approach for analysis of high fat content food samples using a matrix-compatible coating
De Grazia, Selenia; Gionfriddo, Emanuela; Pawliszyn, Janusz (Elsevier, 2017-05-15)The current work presents the optimization of a protocol enabling direct extraction of avocado samples by a new Solid Phase Microextraction matrix compatible coating. In order to further extend the coating life time, ... -
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 ... -
Solid Phase Microextraction On-Fiber Derivatization Using a Stable, Portable, and Reusable Pentafluorophenyl Hydrazine Standard Gas Generating Vial
Poole, Justen J.; Grandy, Jonathan J.; Gomez-Rios, German Augusto; Gionfriddo, Emanuela; Pawliszyn, Janusz (American Chemical Society, 2017-07-05)Solid phase microextraction (SPME) on-fiber derivatization methods have facilitated the achievement of lower detection limits and targeted analysis of various substances that exhibit poor chromatographic behavior, thermal ...