Optimization of Fiber Coating Structure Enables Direct Immersion Solid Phase Microextraction and High-Throughput Determination of Complex Samples

2012 ◽  
Vol 84 (16) ◽  
pp. 6933-6938 ◽  
Author(s):  
Érica A. Souza Silva ◽  
Janusz Pawliszyn
Keyword(s):  
High Throughput ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Coating Structure ◽  
Complex Samples ◽  
Fiber Coating ◽  
Direct Immersion

scholarly journals High-efficiency solid-phase microextraction performance of polypyrrole enhanced titania nanoparticles for sensitive determination of polar chlorophenols and triclosan in environmental water samples

RSC Advances ◽  
2021 ◽  
Vol 11 (46) ◽  
pp. 28632-28642
Author(s):  
Mingguang Ma ◽  
Yunxia Wei ◽  
Huijuan Wei ◽  
Xianyu Liu ◽  
Haixia Liu
Keyword(s):  
Solid Phase Microextraction ◽  
High Efficiency ◽  
Solid Phase ◽  
Environmental Water ◽  
Nanocomposite Coating ◽  
Titania Nanoparticles ◽  
Fiber Coating ◽  
Sensitive Determination ◽  
Direct Immersion

A PPy/TiO2 nanocomposite coating was fabricated by direct electropolymerization of pyrrole on annealed TiO2 nanoparticles and evaluated as a novel direct immersion solid phase microextraction fiber coating for the extraction of trace pollutants in water.

Determination of water pollutants by direct-immersion solid-phase microextraction using polymeric ionic liquid coatings

2010 ◽  
Vol 1217 (8) ◽  
pp. 1236-1243 ◽  
Author(s):  
Jessica López-Darias ◽  
Verónica Pino ◽  
Jared L. Anderson ◽  
Christa M. Graham ◽  
Ana M. Afonso
Keyword(s):  
Ionic Liquid ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Polymeric Ionic Liquid ◽  
Water Pollutants ◽  
Direct Immersion

Fe3O4/polyethylene glycol nanocomposite as a solid-phase microextraction fiber coating for the determination of some volatile organic compounds in water

2017 ◽  
Vol 40 (3) ◽  
pp. 717-724 ◽  
Author(s):  
Manoochehr Farjaminezhad ◽  
Mohammad Saber Tehrani ◽  
Parviz Aberoomand Azar ◽  
Shahab Bohlooli ◽  
Syed Waqif Hussain
Keyword(s):  
Polyethylene Glycol ◽  
Volatile Organic Compounds ◽  
Organic Compounds ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Fiber Coating ◽  
Volatile Organic

Direct Immersion-Solid Phase Microextraction for the Determination of Chlorinated Pesticide Residues in Tomatoes by Gas Chromatography with an Electron Capture Detector

2013 ◽  
Vol 96 (6) ◽  
pp. 1430-1434 ◽  
Author(s):  
Maurizio Boccacci Mariani ◽  
Vanessa Giannetti ◽  
Elena Testani ◽  
Valentina Ceccarelli
Keyword(s):  
Electron Capture ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Correlation Coefficients ◽  
Electron Capture Detection ◽  
Extraction Temperature ◽  
Chlorinated Pesticides ◽  
Salting Out ◽  
Direct Immersion

Abstract The use of pesticides in agriculture has grown dramatically over the last decades. Environmental exposure of humans to agrochemicals is common and results in both acute and chronic health effects. In this study, direct immersion-solid phase microextraction (SPME) was coupled with electron capture detection for trace determination of 19 chlorinated pesticides in tomato samples, using a 100 μm polydimethylsiloxane fiber. The experimental parameters extraction time, extraction temperature, stirring, and salting out were evaluated and optimized. The LODs ranged from 0.5 to 8 μg/kg, and the LOQs from 5 to 30 μg/kg. A linear response was confirmed by correlation coefficients ranging from 0.97 to 0.9985. The developed method was tested by analyzing real samples purchased within the network of Italian distribution. The samples were found to be free from detectable residues of the studied pesticides. SPME has been shown to be a fast extraction technique that has several advantages such as solvent-free extraction, simplicity, and compatibility with the chromatographic analytical system.

scholarly journals Solid Phase Microextraction–Gas Chromatography For The Analysis Of Explosives In Post Blast Water Samples

2012 ◽  
Author(s):  
Umi Kalthom Ahmad ◽  
Kee Heng Kiu
Keyword(s):  
Gas Chromatography ◽  
Water Samples ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Fiber Types ◽  
Qualitative And Quantitative Analysis ◽  
Salting Out ◽  
Fiber Coating ◽  
Stirring Effect ◽  
Direct Immersion

Dalam kajian ini, teknik pengekstrakan mikro fasa pepejal (SPME) diikuti dengan kromatografi gas (GC) telah digunakan untuk menentukan sisa letupan. Beberapa parameter termasuk masa penjerapan, masa dan suhu nyahjerapan, jenis gentian SPME, kesan pengadukan dan kesan garam telah dioptimumkan untuk mendapat data yang tepat. Penambahan 10% w/v NaCl dalam medium akues dan penggunaan gentian Carboxen/Polidimetilsiloksana (CAR/PDMS) menghasilkan pengekstrakan yang paling cekap. SPME/GC–ECD yang telah dioptimumkan digunakan untuk menganalisis sisa letupan 2,6–dinitrotoluena (2,6–DNT), trinitrotoluena (TNT) dan pentaeritritol tetranitrat (PETN) berjaya dikesan daripada sampel air. SPME/GC–ECD secara rendaman langsung didapati kaedah yang menarik digunakan untuk menganalisis bahan letupan dalam sampel air pasca letupan secara kualitatif dan kuantitatif. Kata kunci: Bahan letupan, SPME rendaman langsung, GC–ECD, sampel air pasca letupan In this study, a solid–phase microextraction (SPME) technique followed by gas chromatography (GC) was used to determine explosive residues. Several parameters including adsorption time, desorption time and temperature, SPME fiber types, stirring effect and salting out effect were optimized to obtain reproducible data with good accuracy. Addition of 10% w/v of NaCl in the aqueous medium and the use of a Carboxen/Polydimethylsiloxane (CAR/PDMS) fiber coating led to optimal extraction efficiencies. The optimized SPME/GC–ECD method was applied to the trace analysis of explosive residues in water samples. 2,6–dinitrotoluene (2,6–DNT), trinitrotoluene (TNT) and pentaerythritol tetranitrate (PETN) were successfully detected from water samples. Direct Immersion SPME/GC–ECD was found to be an attractive technique for qualitative and quantitative analysis of explosives in post blast water samples. Key words: Explosives, direct immersion SPME, GC–ECD, post blast water samples

scholarly journals Direct immersion solid-phase microextraction with gas chromatography and mass spectrometry for the determination of specific biomarkers of human sweat in melted snow

2016 ◽  
Vol 39 (7) ◽  
pp. 1300-1309 ◽  
Author(s):  
Federico Dallo ◽  
Dario Battistel ◽  
Rossano Piazza ◽  
Jacopo Gabrieli ◽  
Jean-Jacques Filippi ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Human Sweat ◽  
Melted Snow ◽  
Direct Immersion

Determination of compounds with varied volatilities from aqueous samples using a polymeric ionic liquid sorbent coating by direct immersion-headspace solid-phase microextraction

2016 ◽  
Vol 8 (20) ◽  
pp. 4108-4118 ◽  
Author(s):  
Josias Merib ◽  
Honglian Yu ◽  
Eduardo Carasek ◽  
Jared L. Anderson
Keyword(s):  
Gas Chromatography ◽  
Ionic Liquid ◽  
Solid Phase Microextraction ◽  
Solid Phase ◽  
Aqueous Samples ◽  
Headspace Solid Phase Microextraction ◽  
Polymeric Ionic Liquid ◽  
Direct Immersion

The use of highly robust polymeric ionic liquid (PIL) sorbent coatings combined with direct immersion (DI) and headspace (HS) modes in a single solid-phase microextraction (SPME) procedure coupled to gas chromatography (GC) is reported.

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