solid-phase microextraction
Original Paper Volatile flavour constituent patterns of Terras Madeirenses red wines extracted by dynamic headspace solid-phase microextraction
... [8], solid phase extraction (SPE) [9], and ultrasound extraction [10] were commonly ...include solid-phase microextraction (SPME) developed by Pawliszyn et ...sorptive phase, ...
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Original Paper Characterization of volatile substances in apples from Rosaceae family by headspace solid-phase microextraction followed by GC-qMS
... The volatile composition of different apple varieties of Malus domestica Borkh. species from different geographic regions at Madeira Islands, namely Ponta do Pargo (PP), Porto Santo (PS), and Santo da Serra (SS) was ...
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Analysis of drugs in biological samples: automated "in-tube" solid-phase microextraction and high performance liquid chromatography.
... “IN-TUBE” SOLID-PHASE MICROEXTRACTION AND HIGH PERFORMANCE LIQUID ...new solid phase microextraction (SPME) system, known as in-tube SPME, was recently developed using an open ...
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Characterization of the volatile fraction emitted by phloems of four pinus species by solid-phase microextraction and gas chromatography–mass spectrometry
... headspace solid-phase microextraction (SPME), gas chromatography (GC) and mass spectrometry (GC–MS), as a potential method to be used for the determination of pine ...
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Analysis and discrimination of the chemotypes of Lippia graveolens H.B.K. of guatemala by solid phase microextraction, GC-MS and multivariate analysis.
... ANALYSIS AND DISCRIMINATION OF THE CHEMOTYPES OF Lippia graveolens H.B.K. OF GUATEMALA BY SOLID PHASE MICROEXTRACTION, GC-MS AND MULTIVARIATE ANALYSIS. SPME-GC-MS, PCA and HCA multivariate techniques ...
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Screening of volatile composition from Portuguese multifloral honeys using headspace solid-phase microextraction-gas chromatography–quadrupole mass spectrometry
... The volatile composition from four types of multifloral Portuguese (produced in Madeira Island) honeys was investigated by a suitable analytical procedure based on dynamic headspace solid-phase ...
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Evaluation of volatile profiles obtained for minimally-processed pineapple fruit samples during storage by headspace-solid phase microextraction gas chromatography-mass spectrometry
... the solid-phase microextraction (SPME) technique for the determination and monitoring of the volatile profile of minimally-processed pineapple fruit stored at various temperatures (-12 °C, 4 °C and ...
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Analysis of organochlorine pesticides in water using headspace solid phase microextraction with gas chromatography and mass spectrometry.
... (SPME, Solid Phase Microextraction) é uma técnica analítica capaz de integrar extração e concentração em uma única etapa e provou ser signiicativamente rápida, simples e de fácil manuseio, além de ...
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Development of headspace solid-phase microextraction-gas chromatography–mass spectrometry methodology for analysis of terpenoids in Madeira wines
... In the beginning of 90 decade, a new variation of adsorp- tion technique called solid-phase microextraction (SPME) has been developed by Pawliszyn and co-workers [20–22]. Com- pared to traditional ...
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Solid-phase microextraction and the human fecal VOC metabolome.
... The diagnostic potential and health implications of volatile organic compounds (VOCs) present in human feces has begun to receive considerable attention. Headspace solid-phase microextraction (SPME) ...
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Development of a dynamic headspace solid phase microextraction procedure coupled to GC qMSD for evaluation the
... headspace solid- phase microextraction (HS-SPME) followed by thermal desorption gas chromatography with quadrupole mass detection (GC–qMSD), was developed and optimized for the determination of ...
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Comparative analysis of the volatile fraction from Annona cherimola Mill. cultivars by solid-phase microextraction and gas chromatography–quadrupole mass spectrometry detection
... headspace solid-phase microextraction (HS-SPME) technique emerges as an attractive alternative for volatile analysis because it offers many advantages like high sensitivity and reproducibility, ...
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Determination of activity coefficients at infinite dilution through solid phase microextraction (SPME).
... THROUGH SOLID PHASE MICROEXTRACTION ...approach, solid phase micro extraction (SPME), is used in the evaluation of the infinite dilution activity coefficient of the solute in a given ...
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Effectiveness of different solid-phase microextraction fibres for differentiation of selected Madeira island fruits based on their volatile metabolite profile—Identification of novel compounds
... headspace solid-phase microextraction (HS-SPME) procedure based on five commercialised fibres (85 m polyacrylate – PA, 100 m polydimethylsiloxane – PDMS, 65 m polydimethyl- siloxane/divinylbenzene ...
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Use of a Natural Sorbent as Alternative Solid-Phase Microextraction Coating for the Determination of Polycyclic Aromatic Hydrocarbons in Water Samples by Gas Chromatography-Mass Spectrometry
... in solid-phase microextraction was exploited for use in the determination of polycyclic aromatic hydrocarbons in water samples with separation/detection performed by gas chromatography-mass ...
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Determination of parathion in biological fluids by means of direct Solid Phase Microextraction.
... Abstract A new and simple procedure for the determina- tion of parathion in human whole blood and urine using direct immersion (DI) solid-phase microextraction (SPME) and gas chromatography/mass ...
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Arabica coffee discrimination between maturation stages and post-harvesting processing types, using solid phase microextraction coupled to gas chromatography and principal components analysis.
... USING SOLID PHASE MICROEXTRACTION COUPLED TO GAS CHROMATOGRAPHY AND PRINCIPAL COMPONENTS ...headspace solid phase microextraction coupled to gas chromatography (HS-SPME-GC) could ...
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Determination of volatile fatty acids in municipal wastewater by gas chromatography-mass spectrometry preceded by headspace- solid phase microextraction with PDMS-CAR fibre
... – solid phase microextraction (HS-SPME) followed by gas chromatography-mass spectrometry (GC-MS) has been developed for the determination of free volatile fatty acids in municipal wastewater ...
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Applicability of head space solid phase microextraction (HS-SPME) with polyethylene glycol (PEG) fibre for GC-MS determination of volatile fatty acids in aqueous samples
... The selection of an SPME fibre is based on the principle that non-polar analytes are efficiently extracted into the non-polar stationary phase, and polar analytes are better extracted with polar stationary ...
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REPOSITORIO INSTITUCIONAL DA UFOP: Isolation and quantification of dialkylmercury species by headspace solid phase microextraction and gas chromatography with atomic emission detection.
... A methodology to quantify dialkylmercury compounds using Headspace Solid Phase Micro- extraction (HS-SPME) and Gas Chromatography with Atomic Emission Detection (GC-AED) was developed. The parameters for Hg ...
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