Articles with "needle trap" as a keyword



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Modified activated carbon derived from chestnut oak shells as new sorbent for the needle-trap extraction.

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Published in 2022 at "Journal of separation science"

DOI: 10.1002/jssc.202200498

Abstract: In this study, an acid-treated-activated carbon was prepared from chestnut oak shell carbonization followed by modification with hydrochloric acid /nitric acid (HCl/HNO3 ) and then used as a new sorbent for headspace needle-trap extraction of… read more here.

Keywords: new sorbent; needle trap; activated carbon; extraction ... See more keywords
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Preparation of Carbotrap/silica composite for needle trap field sampling of halogenated volatile organic compounds followed by gas chromatography/mass spectrometry determination

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Published in 2019 at "Journal of Environmental Health Science and Engineering"

DOI: 10.1007/s40201-019-00418-2

Abstract: A needle trap device (NTD) was packed with Carbotrap/silica composite sorbent and applied for field sampling of halogenated volatile organic compounds (HVOCs) followed by gas chromatography/mass spectrometry (GC/MS) separation and determination. Carbotrap B, as a… read more here.

Keywords: determination; field sampling; carbotrap silica; needle trap ... See more keywords
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Efficient sampling and determination of airborne N-nitrosamines by needle trap device coupled with gas chromatography–mass spectrometry

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Published in 2018 at "Microchemical Journal"

DOI: 10.1016/j.microc.2018.03.039

Abstract: Abstract N-Nitrosamines are strong carcinogens and widely existing in nature and human environment. Airborne N-nitrosamines are found in tobacco, rubber factories and heavily polluted areas with atmospheric particulate matter. In this paper, needle trap device,… read more here.

Keywords: coupled gas; trap device; needle trap; airborne nitrosamines ... See more keywords
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Antimony speciation analysis by hydride trapping on hybrid nanoparticles packed in a needle trap device with electro-thermal atomic absorption spectrometry determination

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Published in 2018 at "Journal of Analytical Atomic Spectrometry"

DOI: 10.1039/c8ja00311d

Abstract: Oxidized multiwall carbon nanotubes (oxMWCNTs) were combined with TiO2 nanoparticles to obtain hybrid nanoparticles (HNPs). A miniaturized flow injection (FI) system was introduced for antimony speciation and a headspace vial was used for hydride generation.… read more here.

Keywords: spectrometry; analysis; antimony speciation; needle trap ... See more keywords
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Efficient extraction of aromatic amines in the air by the needle trap device packed with the zirconium based metal–organic framework sorbent

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Published in 2020 at "RSC Advances"

DOI: 10.1039/d0ra00687d

Abstract: In this study, development of a needle trap device (NTD) packed with UiO-66 adsorbent was used for the sampling of the aromatic amine compounds (including aniline, N,N-dimethylaniline and o-toluidine) followed by gas chromatography (GC) with… read more here.

Keywords: sorbent; needle trap; trap device; desorption ... See more keywords
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Needle Trap Device-GC-MS for Characterization of Lung Diseases Based on Breath VOC Profiles

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Published in 2021 at "Molecules"

DOI: 10.3390/molecules26061789

Abstract: Volatile organic compounds (VOCs) have been assessed in breath samples as possible indicators of diseases. The present study aimed to quantify 29 VOCs (previously reported as potential biomarkers of lung diseases) in breath samples collected… read more here.

Keywords: breath; voc; voc profiles; needle trap ... See more keywords
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Application of a Telescoping Microextraction Needle Trap Sampling Device on a Drone to Extract Airborne Organic Vapors

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Published in 2019 at "Aerosol and Air Quality Research"

DOI: 10.4209/aaqr.2019.04.0183

Abstract: A quadrotor drone was equipped with an active solid phase microextraction (SPME) sampling device, known as a needle trap sampler (NTS), for extracting airborne volatile organic compounds (VOCs). The NTS, which has a 22-gauge stainless steel needle… read more here.

Keywords: sampling device; microextraction; needle trap; drone ... See more keywords