57328-U

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Poly(ionic liquids)-coated stainless-steel wires packed into a polyether ether ketone tube for in-tube solid-phase microextraction.

Juanjuan Feng et al.

Journal of separation science, 40(24), 4773-4779 (2017-10-19)

An in-tube solid-phase microextraction device was developed by packing poly(ionic liquids)-coated stainless-steel wires into a polyether ether ketone tube. An anion-exchange process was performed to enhance the extraction performance. Surface properties of poly(ionic liquids)-coated stainless-steel wires were characterized by scanning

A modified multiscale peak alignment method combined with trilinear decomposition to study the volatile/heat-labile components in Ligusticum chuanxiong Hort - Cyperus rotundus rhizomes by HS-SPME-GC/MS.

Min He et al.

Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1079, 41-50 (2018-02-14)

Head Space/Solid Phase Micro-Extraction (HS-SPME) coupled with Gas Chromatography/Mass Spectrometer (GC/MS) was used to determine the volatile/heat-labile components in Ligusticum chuanxiong Hort - Cyperus rotundus rhizomes. Facing co-eluting peaks in k samples, a trilinear structure was reconstructed to obtain the

A comparison of sample preparation methods for extracting volatile organic compounds (VOCs) from equine faeces using HS-SPME.

Rachael Hough et al.

Metabolomics : Official journal of the Metabolomic Society, 14(2), 19-19 (2018-01-26)

Disturbance to the hindgut microbiota can be detrimental to equine health. Metabolomics provides a robust approach to studying the functional aspect of hindgut microorganisms. Sample preparation is an important step towards achieving optimal results in the later stages of analysis.

Headspace solid-phase micro-extraction and gas chromatography with micro-electron capture detection for the measurement of p,p'-DDE in rat whole blood and hair.

Takahiko Kusakabe et al.

The Tokai journal of experimental and clinical medicine, 28(3), 131-138 (2004-04-02)

A sensitive, specific, and reproducible capillary gas chromatography (GC) with micro-electron capture detection (micro-ECD) method using headspace solid-phase micro-extraction (HS-SPME) for the quantitative analysis of p,p'-DDE in rat whole blood and hair was developed. A 100 microm polydimethylsiloxane (PDMS) phase

Arabidopsis lipoxygenase 2 is essential for formation of green leaf volatiles and five-carbon volatiles.

Satoshi Mochizuki et al.

FEBS letters, 590(7), 1017-1027 (2016-03-19)

Plants biosynthesize a variety of bioactive lipid derivatives, such as green leaf volatiles (GLVs) and jasmonates (JAs). Here we identify a lipoxygenase 2 (LOX2) involved in GLV biosynthesis in Arabidopsis using mutant lines for each of the six LOX isoforms

Polydopamine-based immobilization of a hydrazone covalent organic framework for headspace solid-phase microextraction of pyrethroids in vegetables and fruits.

Mingxue Wu et al.

Journal of chromatography. A, 1456, 34-41 (2016-06-19)

We designed a novel hydrazone covalent organic framework (COF) and developed a polydopamine (PDA) method to immobilize COF on a stainless steel fiber for headspace solid-phase microextraction (HS-SPME). A series of characterization studies was performed to validate the structure and

Study of odor compounds in gaseous effluents generated during production of poultry feather and viscera meal using headspace solid phase microextraction.

Roberta Letícia Krüger et al.

Environmental monitoring and assessment, 158(1-4), 355-363 (2008-10-28)

This work reports the screening and characterization of odor compounds in gaseous effluents generated during the production of poultry feather and viscera meal, the by-products of the poultry meat industry. Chemical analysis was carried out by solid phase microextraction in

SPME-MS-MVA as a rapid technique for assessing oxidation off-flavors in foods.

R T Marsili

Advances in experimental medicine and biology, 488, 89-100 (2001-09-08)

A new technique using solid-phase microextraction, mass spectrometry, and multivariate analysis (SPME-MS-MVA) was developed for the study of oxidized off-flavors in foods. The analytical column of a GC-MS system was replaced with a 1-m deactivated fused-silica column, which served as

Using β-cyclodextrin/attapulgite-immobilized ionic liquid as sorbent in dispersive solid-phase microextraction to detect the benzoylurea insecticide contents of honey and tea beverages.

Miyi Yang et al.

Food chemistry, 197 Pt B, 1064-1072 (2015-12-18)

A green, simple, inexpensive dispersive solid-phase microextraction method coupled with high-performance liquid chromatography was developed for rapid screening and selective recognition of benzoylurea insecticides (BUs) in honey and tea beverages. A novel adsorbent, ionic liquid (IL)-modified β-cyclodextrin/attapulgite (β-CD/ATP), was prepared

Inline roasting hyphenated with gas chromatography-mass spectrometry as an innovative approach for assessment of cocoa fermentation quality and aroma formation potential.

Jim Van Durme et al.

Food chemistry, 205, 66-72 (2016-03-24)

Today, the cocoa industry is in great need of faster and robust analytical techniques to objectively assess incoming cocoa quality. In this work, inline roasting hyphenated with a cooled injection system coupled to a gas chromatograph-mass spectrometer (ILR-CIS-GC-MS) has been

A quantitative approach for pesticide analysis in grape juice by direct interfacing of a matrix compatible SPME phase to dielectric barrier discharge ionization-mass spectrometry.

Mario F Mirabelli et al.

The Analyst, 143(4), 891-899 (2018-01-23)

We evaluated the performance of a dielectric barrier discharge ionization (DBDI) source for pesticide analysis in grape juice, a fairly complex matrix due to the high content of sugars (≈20% w/w) and pigments. A fast sample preparation method based on

Ionogel fibres of bis(trifluoromethanesulfonyl)imide anion-based ionic liquids for the headspace solid-phase microextraction of chlorinated organic pollutants.

F Pena-Pereira et al.

The Analyst, 140(21), 7417-7422 (2015-09-15)

Ionogels, a family of hybrid materials in which ionic liquids (ILs) are confined in a sol-gel network, are receiving much attention in a variety of scientific and technological fields. In this work, ionogels derived from three different ILs based on

Innovative Monitoring of Atmospheric Gaseous Hydrogen Fluoride.

Stefano Dugheri et al.

International journal of analytical chemistry, 2016, 2129053-2129053 (2016-11-11)

Hydrogen fluoride (HF) is a basic raw material for a wide variety of industrial products, with a worldwide production capacity of more than three million metric tonnes. A novel method for determining particulate fluoride and gaseous hydrogen fluoride in air

Application and validation of isotope dilution method (IDM) for predicting bioavailability of hydrophobic organic contaminants in soil.

Jie Wang et al.

Environmental pollution (Barking, Essex : 1987), 236, 871-877 (2018-03-03)

Risk assessment of hydrophobic organic contaminants (HOCs) using the total chemical concentration following exhaustive extraction may overestimate the actual availability of HOCs to non-target organisms. Existing methods for estimating HOC bioavailability in soil have various operational limitations. In this study

Semiochemicals released from five bacteria identified from animal wounds infested by primary screwworms and their effects on fly behavioral activity.

Junwei J Zhu et al.

PloS one, 12(6), e0179090-e0179090 (2017-06-09)

The Primary screwworm, Cochliomyia hominivorax (Coquerel), is a serious pest feeding on living flesh of any warm-blooded animal, including humans. It was eradicated from the United States in the early 1980s using the sterile male technique. However, it was recently

Outdoor air 1,3-butadiene monitoring near a petrochemical industry (Tarragona region) and in several Catalan urban areas using active multi-sorbent bed tubes and analysis through TD-GC/MS.

Eva Gallego et al.

The Science of the total environment, 618, 1440-1448 (2017-11-08)

1,3-Butadiene is a carcinogenic compound that can be emitted to the atmosphere from several sources, such as the combustion of organic matter or traffic. However, petrochemical industry is one of the main origins of this compound. Several campaigns (2013-2017) were

The volatile molecule signature of four mycobacteria species.

Theodore R Mellors et al.

Journal of breath research, 11(3), 031002-031002 (2017-04-21)

Mycobacteria are the leading cause of death from infectious disease worldwide and limitations in current diagnostics are hampering control efforts. In recent years, the use of small volatile molecules as diagnostic biomarkers for mycobacteria has shown promise for use in

Measurement of Setschenow constants for six hydrophobic compounds in simulated brines and use in predictive modeling for oil and gas systems.

Aniela Burant et al.

Chemosphere, 144, 2247-2256 (2015-11-26)

Treatment and reuse of brines, produced from energy extraction activities, requires aqueous solubility data for organic compounds in saline solutions. The presence of salts decreases the aqueous solubility of organic compounds (i.e. salting-out effect) and can be modeled using the

Water stress and ripeness effects on the volatile composition of Cabernet Sauvignon wines.

Inmaculada Talaverano et al.

Journal of the science of food and agriculture, 98(3), 1140-1152 (2017-08-02)

Controlled water deficits affect grape berry physiology and the resulting wines, with volatile composition being the one of the affected parameters. However, there is a potential disconnect between aromatic maturity and sugar accumulation. Accordingly, the effects of three different water

Composition of volatile in micropropagated and field grown aromatic plants from Tuscany Islands.

Laura Pistelli et al.

Acta biochimica Polonica, 60(1), 43-50 (2013-02-27)

Aromatic plant species present in the natural Park of Tuscany Archipelago are used as flavoring agents and spices, as dietary supplements and in cosmetics and aromatherapy. The plants are usually collected from wild stands, inducing a depletion of the natural

Polymeric ionic liquids as CO(2) selective sorbent coatings for solid-phase microextraction.

Qichao Zhao et al.

Analytical chemistry, 82(2), 707-713 (2009-12-30)

Two polymeric ionic liquids (PIL) were synthesized and employed as sorbent coatings in solid-phase microextraction (SPME) for the selective extraction of CO(2). The two coatings, poly(1-vinyl-3-hexylimidazolium) bis[(trifluoromethyl)sulfonyl]imide [poly(VHIM-NTf(2))] and poly(1-vinyl-3-hexylimidazolium) taurate [poly(VHIM-taurate)], exhibited varied selectivity toward CO(2) due to functional

Development of a solid-phase microextraction method for the analysis of phenolic flame retardants in water samples.

Maria Polo et al.

Journal of chromatography. A, 1124(1-2), 11-21 (2006-04-08)

A solid-phase microextraction (SPME) method for the ultra-trace determination of brominated phenols in aqueous samples has been developed and is reported for the first time to the best of our knowledge. 3,5,3',5'-tetrabromobisphenol A (TBBPA), the most widely used brominated flame

Thallium stimulates ethanol production in immortalized hippocampal neurons.

Laura Colombaioni et al.

PloS one, 12(11), e0188351-e0188351 (2017-11-22)

Lactate and ethanol (EtOH) were determined in cell culture medium (CCM) of immortalized hippocampal neurons (HN9.10e cell line) before and after incubation with Thallium (Tl). This cell line is a reliable, in vitro model of one of the most vulnerable

Characterization of volatile profile from ten different varieties of Chinese jujubes by HS-SPME/GC-MS coupled with E-nose.

Qinqin Chen et al.

Food research international (Ottawa, Ont.), 105, 605-615 (2018-02-13)

Volatile profile of ten different varieties of fresh jujubes was characterized by HS-SPME/GC-MS (headspace solid phase micro-extraction combined with gas chromatography-mass spectrometry) and E-nose (electronic nose). GC-MS results showed that a total of 51 aroma compounds were identified in jujubes

Volatile organic compound analysis by pulsed glow discharge time of flight mass spectrometry as a structural elucidation tool.

Marcos Bouza et al.

Journal of mass spectrometry : JMS, 52(9), 561-570 (2017-06-14)

Pulsed glow discharge (PGD) coupled to time of flight mass spectrometry (TOFMS) has been investigated for volatile organic compound (VOC) identification and determination. Optimization of PGD operational conditions (chamber design, applied power, pressure and duty cycle) was performed using acetone

Determination of polycyclic aromatic hydrocarbons in Persian Gulf and Caspian Sea: gold nanoparticles fiber for a head space solid phase micro extraction.

Mohammad Karimi et al.

Bulletin of environmental contamination and toxicology, 90(3), 291-295 (2012-11-28)

A gold nanoparticles modified fused silica fiber was developed and used for the head space solid phase micro-extraction (HS-SPME) of polycyclic aromatic hydrocarbons (PAHs), including naphthalene, anthracene, acenaphthylene, phenanthrene, fluoranthene and pyrene. The effects of different parameters influencing the extraction

Changes of the metabolism of the colon cancer cell line SW-480 under serum-free and serum-reduced growth conditions.

Michelle Hartmann et al.

In vitro cellular & developmental biology. Animal, 44(10), 458-463 (2008-09-24)

Serum of animal origin, like foetal calf serum (FCS), is used as a standard supplement for media to cultivate mammalian cells, mostly due to its growth-supporting properties. Unfortunately, animal serum has many disadvantages like the risk of contamination, high costs

[Preparation of phenyl-modified silica nanoflake fibers and the solid-phase microextraction of polycyclic aromatic hydrocarbons].

Shanshan Zhou et al.

Se pu = Chinese journal of chromatography, 36(2), 100-106 (2018-03-28)

A novel silica-based solid-phase microextraction (SPME) fiber was successfully fabricated by the immobilization of silica nanoflakes (SiO

Pawliszyn, Janusz

Applications of Solid Phase Microextraction, 674-674 (1999)

Evaluation of Amazon fruits: chemical and nutritional studies on Borojoa sorbilis.

Francimilton Rabelo Rodrigues et al.

Journal of the science of food and agriculture (2018-02-01)

Borojoa sorbilis (Ducke) is an Amazonian species with edible fruits that are widely consumed by the local population, but little studied and not yet economically explored. Thus the aim of this study was to describe the chemical composition, volatile compounds

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