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Karolin Axelsson et al.
Microbial ecology, 74(1), 177-184 (2017-01-12)
The pine weevil, Hylobius abietis, is a severe forest pest insect as it feeds on newly planted conifer seedlings. To identify and develop an antifeedant could be one step towards the protection of seedlings from feeding damage by the pine
Tatjana Abaffy et al.
PloS one, 5(11), e13813-e13813 (2010-11-17)
Early detection of melanoma is of great importance to reduce mortality. Discovering new melanoma biomarkers would improve early detection and diagnosis. Here, we present a novel approach to detect volatile compounds from skin. We used Head Space Solid Phase Micro-Extraction
Krzysztof Goryński et al.
Journal of pharmaceutical and biomedical analysis, 130, 55-67 (2016-05-29)
Solid phase microextraction (SPME) is a technology where a small amount of an extracting phase dispersed on a solid support is exposed to the sample for a well-defined period of time. The open-bed geometry and biocompatibility of the materials used
Heike Gerhardt et al.
Journal of chemical ecology, 42(8), 725-738 (2016-07-06)
Spatially controlled in vivo sampling by contact solid phase microextraction with a non-coated silica fiber combined with gas chromatography-mass spectrometry (GC-MS) was utilized for hydrocarbon profiling in tarsal adhesion secretions of four insect species (Nicrophorus vespilloides, Nicrophorus nepalensis, Sagra femorata
Aníbal Valenzuela et al.
Talanta, 125, 196-203 (2014-05-21)
A new headspace solid-phase micro-extraction (HS-SPME) method followed by gas chromatography with pulsed flame photometric detection (GC-PFPD) analysis has been developed for the simultaneous determination of 11 organotin compounds, including methyl-, butyl-, phenyl- and octyltin derivates, in human urine. The
Zarrin Es'haghi et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 973C, 142-151 (2014-12-03)
Hollow fiber-solid phase micro-extraction (HF-SPME) technique containing sol-gel-derived Fe
M Fernández-Amado et al.
Journal of chromatography. A, 1520, 35-47 (2017-09-19)
An in-tube solid phase microextraction, coupled with high-performance liquid chromatography with diode array detection (IT-SPME-HPLC-DAD) method, has been developed for the simultaneous determination of 13 diesters (from dimethyl to dioctylphthalate plus diisobutyl, benzylbutyl, di-2-ethylhexyl, diisononyl and diisodecylphthalate) and 2 monoesters
Ali Reza Ghiasvand et al.
Analytical and bioanalytical chemistry, 410(2), 361-371 (2017-12-24)
A low-cost, sensitive and reliable reduced-pressure headspace solid-phase microextraction (HS-SPME) setup was developed and evaluated for direct extraction of residual solvents in commercial antibiotics, followed by determination by gas chromatography with flame ionization detection (GC-FID). A stainless steel narrow wire
Berit Glomstad et al.
Environmental science and pollution research international, 24(29), 23015-23025 (2017-08-20)
A number of methods have been reported for determining hydrophobic organic compound adsorption to dispersed carbon nanotubes (CNTs), but their accuracy and reliability remain uncertain. We have evaluated three methods to investigate the adsorption of phenanthrene (a model polycyclic aromatic
Sana Abdolhosseini et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1061-1062, 5-10 (2017-07-12)
The surface of a stainless steel fiber was made porous, resistant and cohesive using electrophoretic deposition and coated by the nanostructured polypyrrole using an amended in-situ electropolymerization method. The coated fiber was applied for direct extraction of nicotine in biological
Cristina Bach et al.
Journal of chromatography. A, 1448, 98-106 (2016-04-30)
Here, we developed and validated a headspace-solid-phase microextraction-gas chromatography/mass spectrometry (HS-SPME-GC/MS) method for the determination of 14 volatile perfluorinated alkylated substances (PFASs) in water and sediment samples according to SANTE 11945/2015 guidelines. Three fluorotelomer alcohols (FTOHs), two perfluoroalkyl iodides (PFIs)
Feng Yao et al.
Scientific reports, 5, 9553-9553 (2015-04-11)
Luzhoulaojiao liquor is a type of Chinese liquor that dates back hundreds of years, but whose precise chemical composition remains unknown. This paper describes the screening of the liquor and the identification of its compounds using comprehensive two-dimensional gas chromatography/time-of-flight
Renier Felinto Julião da Rocha et al.
Journal of food science and technology, 54(12), 4042-4050 (2017-11-01)
Optimization of the extraction conditions to investigate the volatile composition of papaya fruit involving headspace solid phase micro-extraction was carried out using multivariate strategies such as factorial design and response surface methodology. The performance of different combinations of time for
Joana Pinto et al.
Food chemistry, 257, 120-127 (2018-04-07)
The oxidation of oaked Chardonnay wine during long-term storage was studied by headspace solid-phase microextraction coupled to gas chromatography-mass spectrometry (HS-SPME-GC/MS) and proton (
Shihua Yu et al.
The Analyst, 143(4), 883-890 (2018-01-19)
Surface enhanced Raman scattering (SERS) is an ultra-sensitive spectroscopy technique, which can provide rich structural information for a great number of molecules, while solid phase micro-extraction (SPME) is an efficient method for sample pretreatment in analytical chemistry, particularly in a
Yong Zhou et al.
American journal of translational research, 9(11), 5116-5126 (2017-12-09)
This study works to develop novel models that may be adopted for earlier non-invasive breathomics tests to determine pneumonia pathogens. Two types of pneumonia models were created, both Pneumonia and pathogen-specific discriminating VOC patterns (1H-Pyrrole-3-carbonitrile, Diethyl phthalate, Cedrol, Decanoic acid
Aniela Burant et al.
Accounts of chemical research, 50(6), 1332-1341 (2017-06-07)
Carbon capture, utilization, and storage (CCUS), a climate change mitigation strategy, along with unconventional oil and gas extraction, generates enormous volumes of produced water containing high salt concentrations and a litany of organic compounds. Understanding the aqueous solubility of organic
Dongjing Liu et al.
Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 36(4), 396-400 (2011-05-24)
The current methods of preparation of pesticide residue analysis in traditional Chinese medicine were summarized in this paper. And the new preparation techniques used in recent years were reviewed, which included solid-phase micro-extraction (SPME), QuECHERS, matrix solid-phase dispersion (MSPD). In
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
Lauren E Musumeci et al.
Molecules (Basel, Switzerland), 20(7), 12280-12299 (2015-07-15)
Analyses of key odorous polyfunctional volatile thiols in wines (3-mercaptohexanol (3-MH), 3-mercaptohexylacetate (3-MHA), and 4-mercapto-4-methyl-2-pentanone (4-MMP)) are challenging due to their high reactivity and ultra-trace concentrations, especially when using conventional gas-chromatography electron impact mass spectrometry (GC-EI-MS). We describe a method
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
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
Yineth Ruíz-García et al.
Food chemistry, 177, 134-138 (2015-02-11)
A solid-phase microextraction procedure followed by analysis by gas chromatography is proposed to determine surface flavouring content in encapsulated flavouring. The method showed a good selectivity, as well as good intraday and interday precision, CVs<4% in both cases. The calibration
Mona Syhre et al.
Tuberculosis (Edinburgh, Scotland), 88(4), 317-323 (2008-02-26)
Worldwide, tuberculosis (TB) kills nearly 2 million people annually, yet rapid diagnosis still relies on a 100-year-old method of sputum staining for acid-fast bacilli. The advent of solid phase micro-extraction and gas chromatography/mass spectrometry makes it possible to systematically investigate
Carlo Pinna et al.
Archives of animal nutrition, 71(5), 395-412 (2017-08-02)
The in vitro effect of a Yucca schidigera extract (YSE) and tannins from chestnut wood on composition and metabolic activity of canine and feline faecal microbiota was evaluated. Four treatments were carried out: control diet, chestnut tannins (CT), YSE and
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
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
Federica Bianchi et al.
Journal of chromatography. A, 1102(1-2), 268-272 (2005-11-22)
An efficient and simple method for the determination of furan in baby-food (vegetables and fruits) by solid phase micro-extraction-gas chromatography-mass spectrometry (SPME-GC-MS) was developed and validated. Experimental design was used to investigate the effects of temperature and time of extraction.
Kristine Ann Gualberto Sotelo et al.
Molecules (Basel, Switzerland), 20(3), 5223-5238 (2015-03-26)
The aim of this research was to study the effect of pulsed electric fields (PEF) on the flavour profile of red-fleshed sweet cherries (Prunus avium variety Stella). The cherry samples were treated at a constant pulse frequency of 100 Hz
William D Kranz et al.
Analytical and bioanalytical chemistry, 406(30), 7817-7825 (2014-11-27)
Genuine explosive materials are traditionally employed in the training and testing of explosive-detecting canines so that they will respond reliably to these substances. However, challenges arising from the acquisition, storage, handling, and transportation of explosives have given rise to the
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