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Irene Catanzaro et al.
Journal of hazardous materials, 185(2-3), 591-597 (2010-10-20)
The aim of this work was to study the biological effects of four monoterpenes, i.e. α-pinene, β-pinene, 3-carene and D-limonene present in the wastewater of a citrus transformation factory. The study was carried out by exposing V79 Chinese hamster cells
Paolo Grassi et al.
Phytochemical analysis : PCA, 15(3), 198-203 (2004-06-19)
A non-equilibrium solid phase micro-extraction application was tested for the rapid extraction of essential oil from single oil glands of sage and the oil components compared with those determined by solvent extract and distillation. Oil glands were directly ruptured with
Corrigendum to "A novel dispersive micro solid phase extraction using zein nanoparticles as the sorbent combined with headspace solid phase micro-extraction to determine chlorophenols in water and honey samples by GC-ECD" [Talanta 128 (1 October 2014) 493-499].
Khalil Farhadi et al.
Talanta, 175, 574-574 (2017-08-27)
Meng Mei et al.
Journal of chromatography. A, 1525, 1-9 (2017-10-23)
Due to the endocrine disrupting properties, organic UV filters have been a great risk for humans and other organisms. Therefore, development of accurate and effective analytical methods is needed for the determination of UV filters in environmental waters. In this
Celia Ruiz-Palomero et al.
The Analyst, 140(10), 3431-3438 (2015-03-18)
An innovative and versatile strategy of Solid Phase Microextraction (SPME) is shown by using a new type of β-cyclodextrin-modified nanocellulose (CD-NC) as a sorbent material. β-cyclodextrin (used as an inclusion-type selector) was covalently bonded to amine-modified nanocellulose by an amidation
David J S Patinha et al.
Materials (Basel, Switzerland), 10(9) (2017-09-21)
Crosslinked pyrrolidinium-based poly(ionic liquids) (Pyrr-PILs) were synthesized through a fast, simple, and solventless photopolymerization scheme, and tested as solid phase microextraction (SPME) sorbents. A series of Pyrr-PILs bearing three different alkyl side chain lengths with two, eight, and fourteen carbons
Simonetta Tumbiolo et al.
Analytical and bioanalytical chemistry, 380(5-6), 824-830 (2004-11-02)
The aim of the study was to analyse BTEX compounds (benzene, toluene, ethylbenzene, xylenes) in air by solid phase micro-extraction/gas chromatography/mass spectrometry (SPME/GC/MS), and this article presents the features of the calibration method proposed. Examples of real-world air analysis are
Liqiang Zhang et al.
Journal of food science (2016-10-16)
Present study was to characterize the physiochemical properties, free amino acids (FAAs), volatiles and microbial communities of various moromi, respectively sampled from different stages of high-salt dilute-state (HSDS) and low-salt solid-state (LSSS) fermentation, using multiphase analyzing methods. Phospholipid fatty acids
Miklós Görgényi et al.
Chemosphere, 59(8), 1083-1090 (2005-04-19)
The Ostwald solubility coefficient, L of 17 volatile organic compounds (VOCs) from the gas phase into water and dilute aqueous ammonia solutions was determined by the equilibrium partitioning in closed system-solid phase micro extraction (EPICS-SPME) method at 303 K and
Natara D B Castilhos et al.
Carbohydrate polymers, 174, 507-516 (2017-08-20)
A novel alginate based hydrogel was successfully prepared and tested for the solid phase microextraction of medium-to-high polarity compounds, when supported in a polypropylene (PP) fiber. Pure alginate when added onto the surface of the PP fiber, resulted in a
Liu Yang et al.
Journal of chromatography. A, 1471, 80-86 (2016-10-22)
In this work, a novel poly(3,4-ethylenedioxythiophene)@Au nanoparticles (PEDOT@AuNPs) hybrid coating was prepared and characterized. Firstly, the monomer 3,4-ethylenedioxythiophene was self-assembled on AuNPs, and then electropolymerization was performed on a stainless steel wire by cyclic voltammetry. The obtained PEDOT@AuNPs coating was
Shanshan Zhou et al.
Journal of separation science, 40(24), 4796-4804 (2017-10-28)
A new strategy for the immobilization of phenyl-functionalized silica nanoparticles onto nickel-titanium alloy wires is presented. The homogeneous and compact silica nanoparticle coating was achieved on the hydrothermally treated nickel-titanium wires with large surface area by electrophoretic deposition, and followed
Tomasz Sawoszczuk et al.
Journal of separation science, 40(4), 858-868 (2016-12-10)
The goal of this work was to determine the microbial volatile organic compounds emitted by moulds growing on wool in search of particular volatiles mentioned in the literature as indicators of active mould growth. The keratinolytically active fungi were inoculated
Francisco Pena-Pereira et al.
Analytical chemistry, 86(23), 11640-11648 (2014-11-06)
In this work, hybrid silica-based materials with immobilized ionic liquids (ILs) were prepared by sol-gel technology and evaluated as solid-phase microextraction (SPME) fiber coatings. High loadings of the IL 1-methyl-3-butylimidazolium bis(trifluoromethylsulfonyl)imide ([C4MIM][TFSI]) were confined within the hybrid network. Coatings composition
L M Chiesa et al.
Veterinary research communications, 34 Suppl 1, S167-S170 (2010-05-13)
Control of the composition of products that are intended for use as packaging material is essential, particularly when these products come into direct contact with food. It is well known that plastics are not inert and that their residual monomers
Bartłomiej Witkowski et al.
Journal of separation science, 41(3), 630-638 (2017-11-19)
Simplified method for simultaneous identification of proteins, drying oils, waxes, and resins in the works-of-art samples was developed. Liquid chromatography with mass spectrometry and gas chromatography with mass spectrometry were used to identify natural materials most frequently encountered in historical
Xin Chen et al.
Environmental pollution (Barking, Essex : 1987), 207, 138-144 (2015-09-15)
Pyrethroid insecticides and metals commonly co-occurred in sediment and caused toxicity to benthic organisms jointly. To improve accuracy in assessing risk of the sediments contaminated by insecticides and metals, it is of great importance to understand interaction between the contaminants
Danilo Ercolini et al.
Scientific reports, 5, 18571-18571 (2015-12-19)
Fourteen Saharawi celiac children following an African-style gluten-free diet for at least two years were subjected to a change of diet to an Italian-style gluten-free diet for 60 days. Significant differences were identified in the salivary microbiota and metabolome when
Habib Bagheri et al.
Journal of chromatography. A, 1434, 19-28 (2016-01-27)
In the present work, a new micro-solid phase extraction (μ-SPE) sorbent as an extracting medium based on core-shell nanofibers was synthesized by electrospinning. The core-shell nanofibers of polyvinylpyrrolidone-Polybutylene terephthalate/polypyrrole (PVP-PBT/PPy) were electrospun and subsequently, modified hollow nanofibers were prepared by
Caterina Maulini-Duran et al.
Bioresource technology, 147, 43-51 (2013-09-03)
Volatile organic compound (VOC) and ammonia, that contribute to odor pollution, and methane and nitrous oxide, with an important greenhouse effect, are compounds present in gaseous emission from waste treatment installations, including composting plants. In this work, gaseous emissions from
Leopoldo Cruz-López et al.
Journal of chemical ecology, 41(5), 458-464 (2015-04-29)
The guava fruit fly, Anastrepha striata, is a pest of several cultivated species of Myrtaceae in the American tropics and subtropics. During calling, A. striata males release numerous volatiles. This study was conducted to identify which of the male volatiles
Marzieh Piryaei et al.
Natural product research, 29(19), 1789-1792 (2015-01-24)
In this work, a highly porous fibre coated with polythiophene/hexagonally ordered silica nanocomposite (PT/SBA-15) was prepared and used for extraction of essential oils with microwave-assisted distillation headspace solid phase microextraction (MA-HS-SPME) method. The prepared nanomaterials were immobilised on a stainless
Jacek A Koziel et al.
Food chemistry, 232, 799-807 (2017-05-12)
A passive sampling method, using retracted solid-phase microextraction (SPME) - gas chromatography-mass spectrometry and time-weighted averaging, was developed and validated for tracking marker volatile organic compounds (VOCs) emitted during aerobic digestion of biohazardous animal tissue. The retracted SPME configuration protects
Afshin Rajabi Khorrami et al.
Analytica chimica acta, 727, 20-25 (2012-05-01)
In this work, a molecular sol-gel imprinting approach has been introduced to produce a fiber coating for selective direct immersion solid-phase microextraction (SPME) of caffeine. The polymerization mixture was composed of vinyl trimethoxysilane and methacrylic acid as vinyl sol-gel precursor
Yonghua Wang et al.
Journal of separation science, 41(1), 180-194 (2017-06-20)
Metal-organic frameworks are promising materials in diverse analytical applications especially in sample pretreatment by virtue of their diverse structure topology, tunable pore size, permanent nanoscale porosity, high surface area, and good thermostability. According to hydrostability, metal-organic frameworks are divided into
Sara Triñanes et al.
Talanta, 132, 433-442 (2014-12-06)
A new straightforward and inexpensive sample screening method for both EPA and EU priority polycyclic aromatic hydrocarbons (PAHs) in water has been developed. The method is based on combined direct immersion and headspace (DIHS) sorptive extraction, using low-cost disposable material
M Soubhi Altaki et al.
Food additives & contaminants. Part A, Chemistry, analysis, control, exposure & risk assessment, 34(5), 728-739 (2017-01-10)
The occurrence of furan in commercial baby food samples from the Spanish market was evaluated using an automated headspace solid-phase microextraction method coupled to gas chromatography-mass spectrometry (HS-SPME-GC-MS). A total of 76 baby food samples including infant formula, baby cereals
Sandrine Aguerre et al.
Analytical and bioanalytical chemistry, 376(2), 226-235 (2003-04-19)
The coupling between gas chromatography (GC) and inductively coupled plasma-atomic emission spectrometry (ICP-AES) has been optimised using experimental designs. Four factors were considered in order to assist the crucial part of the coupling which is the analytes passing through the
G Romanik et al.
Journal of biochemical and biophysical methods, 70(2), 253-261 (2006-11-28)
This paper discusses preparation techniques of samples of plant material for chromatographic analysis. Individual steps of the procedures used in sample preparation, including sample collection from the environment or from tissue cultures, drying, comminution, homogenization, leaching, extraction, distillation and condensation
Shuqin Liu et al.
Analytica chimica acta, 987, 38-46 (2017-09-17)
This study presents the preparation and the characterizations of six tri-metal centered metal-organic frameworks (tM-MOFs) as solid-phase microextraction (SPME) adsorbents. Possessing different proportions of Al, Ga and In atoms in their frameworks, the tM-MOF-based SPME coatings exhibited different extraction performance
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