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Showing 1-30 of 2072 results for "57295-U" within Papers
Chinthaka A Seneviratne et al.
Rapid communications in mass spectrometry : RCM, 30(1), 89-94 (2015-12-15)
Ambient mass spectrometry can detect small molecules directly, but complex mixtures can be a challenge. We have developed a method that incorporates small molecule separation based on laser desorption with capture on a solid-phase microextraction (SPME) fiber for injection into
Paweł Mochalski et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 959, 62-70 (2014-04-29)
Gas chromatography with mass spectrometric detection (GC-MS) coupled with solid phase micro-extraction as pre-concentration method (SPME) was applied to identify and quantify volatile organic compounds (VOCs) emitted by human skin. A total of 64 C4-C10 compounds were quantified in skin
Weiqian Liang et al.
Journal of chromatography. A, 1491, 9-15 (2017-02-27)
In this work, a barley husk biomaterial was successfully carbonized by hydrothermal method. The carbon had a high specific surface area and good stability. It was coated onto a stainless steel wire through sol-gel technique to prepare a solid-phase microextraction
Mohammad Saraji et al.
Journal of chromatography. A, 1460, 33-39 (2016-07-28)
In this paper, a mesoporous carbon-ZrO2 nanocomposite was fabricated on a stainless steel wire for the first time and used as the solid-phase microextraction coating. The fiber was synthesized with the direct carbonization of a Zr-based metal organic framework. With
Pallavi Mohekar et al.
Journal of agricultural and food chemistry, 65(4), 872-878 (2017-01-10)
Brown marmorated stink bugs (BMSB) release stress compounds, tridecane and (E)-2-decenal, that affect final wine quality. This study focuses on determining the effect of wine processing on (E)-2-decenal and tridecane release in both red and white wines. Wines were produced
Jae Hwan Lee et al.
International journal of analytical chemistry, 2012, 690356-690356 (2012-09-12)
Trimethylsilanol (TMSOH) can cause damage to surfaces of scanner lenses in the semiconductor industry, and there is a critical need to measure and control airborne TMSOH concentrations. This study develops a thermal desorption (TD)-gas chromatography (GC)-mass spectrometry (MS) method for
José David Carrillo et al.
Analytical and bioanalytical chemistry, 385(5), 937-943 (2006-06-23)
Multiple headspace solid-phase microextraction (MHS-SPME) with gas chromatography-mass spectrometry is proposed for quantification of nine volatile oak compounds in aged wines. These compounds are formed and extracted by wine when it is matured in oak barrels and are responsible for
Juan Sánchez-González et al.
Analytical and bioanalytical chemistry, 409(5), 1207-1220 (2016-11-07)
A molecularly imprinted polymer (MIP) selective for cannabinoids [Δ
Weiqian Liang et al.
Journal of separation science, 39(7), 1331-1338 (2016-02-04)
In this work, a porous carbon derived from amino-functionalized material of Institut Lavoisier (C-NH2 -MIL-125) was prepared and coated onto a stainless-steel wire through sol-gel technique. The coated fiber was used for the solid-phase microextraction of trace levels of phthalate
Suling Zhang et al.
Journal of chromatography. A, 1452, 18-26 (2016-05-29)
Zeolitic imidazolate frameworks (ZIFs) consist of metal nodes connected to imidazolate linkers, having both the properties of metal-organic frameworks (MOFs) and inorganic zeolites, such as controllable pore sizes, high porosity and surface areas, as well as exceptional thermal and chemical
Rizan Rahmani et al.
Zeitschrift fur Naturforschung. C, Journal of biosciences, 70(9-10), 265-273 (2015-10-16)
Tree mortality caused by bark beetles has increased in recent decades in both Europe and North America. In a large recent outbreak in central Sweden the bark beetle Polygraphus poligraphus was often found together with the spruce bark beetle Ips
Sakchaibordee Sungkaew et al.
Analytica chimica acta, 664(1), 49-55 (2010-03-17)
A new polyethylene glycol fiber was developed for solid-phase microextraction (SPME) of styrene by electrodepositing porous Zn film on Ag wire substrate followed by coating with polyethylene glycol sol-gel (Ag/Zn/PEG sol-gel fiber). The scanning electron micrographs of fibers surface revealed
Gaalebalwe Ntlhokwe et al.
Analytical and bioanalytical chemistry, 409(17), 4127-4138 (2017-04-19)
The applicability of comprehensive two-dimensional gas chromatography (GC×GC) using a single-stage thermal modulator was explored for the analysis of honeybush tea (Cyclopia spp.) volatile compounds. Headspace solid phase micro-extraction (HS-SPME) was used in combination with GC×GC separation on a non-polar
Sara Zali et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 1002, 387-393 (2015-09-13)
For the first time, electrospun polystyrene nanostructure was used as coating material on a stainless steel wire for solid-phase microextraction. Surface morphology of the coating was studied by scanning electron microscopy which showed the formation of nanofibers on the wire.
Habib Bagheri et al.
Journal of separation science, 39(3), 576-583 (2015-11-29)
A high-throughput micro-solid-phase extraction device based on a 96-well plate was constructed and applied to the determination of pesticide residues in various apple samples. Butyl methacrylate and ethylene glycol dimethacrylate were copolymerized as a monolithic polymer and placed in the
Pawliszyn, Janusz
Handbook of Solid Phase Microextraction, 410-410 (2009)
Measurement and Modeling of Setschenow Constants for Selected Hydrophilic Compounds in NaCl and CaCl
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
Ershad Sheibani et al.
Journal of food science, 81(2), C348-C358 (2016-01-13)
Simultaneous distillation-extraction (SDE) and solid phase micro extraction (SPME) are procedures used for the isolation of flavor compounds in foods. The purpose of this study was to optimize SDE conditions (solvent and time) and to compare SDE with SPME for
Mona Lärstad et al.
The Analyst, 127(11), 1440-1445 (2002-12-12)
A method for the determination of exhaled ethane, pentane and isoprene was developed and validated. The method was based on pre-concentration of the analytes on a multi-bed solid adsorbent tube containing Tenax TA, Carboxen 569 and Carboxen 1000, thermal desorption
William A McClenny et al.
Journal of environmental monitoring : JEM, 4(5), 695-705 (2002-10-29)
Ambient air spiked with 1-10 ppbv concentrations of 41 toxic volatile organic compounds (VOCs) listed in US Environmental Protection Agency (EPA) Compendium Method TO-14A was monitored using solid sorbents for sample collection and a Varian Saturn 2000 ion trap mass
C Haberhauer-Troyer et al.
Fresenius' journal of analytical chemistry, 366(4), 329-331 (2001-02-28)
The surfaces of commercially available polydimethylsiloxane (PDMS) and Carboxen-PDMS fibers for solid-phase microextraction (SPME) were investigated by optical and electron microscopy. Damage to the coating as well as contamination of new fibers and a highly variable number of pores in
Baree Chilcote et al.
Science & justice : journal of the Forensic Science Society, 58(2), 98-108 (2018-03-13)
At outdoor crime scenes, cadaver-detection and blood-detection dogs may be tasked with locating blood that is days, weeks or months old. Although it is known that the odour profile of blood will change during this time, it is currently unknown
Vanessa Giannetti et al.
Journal of AOAC International, 99(5), 1279-1286 (2016-09-14)
An authentication study based on headspace solid-phase microextraction/GC-MS was performed with a set of 60 samples representative of traditional "Pasta di Gragnano protected geographical indication (PGI)" and the most common Italian pasta brands. Multivariate chemometric tools were used to classify
Elham Memarian et al.
Analytica chimica acta, 935, 151-160 (2016-08-21)
In this work, a new solid-phase microextraction fiber was prepared based on nitrogen-doped graphene (N-doped G). Moreover, a new strategy was proposed to solve problems dealt in direct coating of N-doped G. For this purpose, first, Graphene oxide (GO) was
Tong Dan et al.
Molecules (Basel, Switzerland), 23(4) (2018-04-12)
The lactic acid bacterium Streptococcus thermophilus is a major starter culture for the production of dairy products. In this study, the physiochemical characteristics of milk fermented by the MGA45-4 isolate of S. thermophilus were analyzed. Our data indicate that milk
Microextraction techniques in illicit drug testing: present and future.
Camilla Montesano et al.
Bioanalysis, 8(9), 863-866 (2016-04-21)
Maria Grazia Farbo et al.
International journal of food microbiology, 284, 1-10 (2018-07-11)
Many foods and beverages in temperate and tropical regions are prone to contamination by ochratoxin A (OTA), one of the most harmful mycotoxins for human and animal health. Aspergillus ochraceus and Aspergillus carbonarius are considered among the main responsible for
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
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