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Relevant bibliographies by topics / GC microchips

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Journal articles
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Academic literature on the topic 'GC microchips'

Author: Grafiati

Published: 4 May 2024

Last updated: 31 July 2025

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Journal articles on the topic "GC microchips"

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Kuo, Hung-Yen, Wei-Riu Cheng, Tzu-Heng Wu, Horn-Jiunn Sheen, Chih-Chia Wang, and Chia-Jung Lu. "A MEMS µ-Preconcentrator Employing a Carbon Molecular Sieve Membrane for Highly Volatile Organic Compound Sampling." Chemosensors 9, no. 5 (2021): 104. http://dx.doi.org/10.3390/chemosensors9050104.

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This paper presents the synthesis and evaluation of a carbon molecular sieve membrane (CMSM) grown inside a MEMS-fabricated μ-preconcentrator for sampling highly volatile organic compounds. An array of µ-pillars measuring 100 µm in diameter and 250 µm in height were fabricated inside a microfluidic channel to increase the attaching surface for the CMSM. The surface area of the CMSM was measured as high as 899 m2/g. A GC peak amplification factor >2 × 104 was demonstrated with gaseous ethyl acetate. Up to 1.4 L of gaseous ethanol at the 100 ppb level could be concentrated without exceeding t

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Yang, Tongxin. "The application and challenges of pharmaceutical analysis technology in the development of innovative drugs." Highlights in Science, Engineering and Technology 123 (December 25, 2024): 716–21. https://doi.org/10.54097/rnz0cb62.

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This paper provides an overview of several major pharmaceutical analysis techniques, including high-performance liquid chromatography (HPLC), gas chromatography (GC), mass spectrometry (MS), nuclear magnetic resonance (NMR), spectroscopy, biological analysis methods applied in new drug research. It also explores the challenges encountered by these techniques in the operation process, such as the complexity of the analyzed object, the improvement of detection limits, the simplicity of sample processing, the enhancement of instrument sensitivity and selectivity, and the advancement of data proce

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Fernando, Castro-Chavez. "Anticovidian v.2 COVID-19: Hypothesis of the Lab Origin Versus a Zoonotic Event which can also be of a Lab Origin." Global Journal of Science Frontier Research: I 20, no. 3 (2020): 9–53. https://doi.org/10.5281/zenodo.3988139.

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<strong>Abstract</strong>: To treat the cause of a disease and not only its effects is of the utmost importance; hence, we need to know the origin of this pandemic of COVID-19, in order to be able, if possible, to prevent an event of such a nature and magnitude in the future, and to be able to avoid every sort of abuses to humanity, as it is happening right now. Bullet points here addressed are: <strong>1</strong>) To have, inside the backbone of a virus from a bat (mostly ~97.55% of the viral RNA (by deducting the HIV inserts found by Perez, Montagnier and others), & as per the findings o

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4

Wei, Yuyu, Hu Meng, and Liang Feng. "A 3D-printed high-hardness die steel microchip GC column: 3-meter long, low-cost, and exhibiting superior separation performance." Journal of Chromatography A, March 2025, 465842. https://doi.org/10.1016/j.chroma.2025.465842.

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Luo, Songlin, Mengdie Su, Xin Yang, et al. "Electrochemical analysis of harmful dichlorvos insecticides based on a high‐performance composite sensor." Journal of Chemical Technology & Biotechnology, January 25, 2024. http://dx.doi.org/10.1002/jctb.7590.

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AbstractBACKGROUNDOrganophosphorus pesticides (OPs) were used in large quantities, and pesticide residues have caused different degrees of environmental pollution. Because the current laboratory detection techniques cannot meet the requirements of quickly and accurately monitoring pesticide concentration, there is an urgent need for a portable and accurate method to trace pesticide residues. This paper reports an effective electrochemical sensor composed of ZrO2@PDA electrode material and glassy carbon electrode (GCE).RESULTSThis sensor displayed optimal selectivity for dichloride among variou

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Abdollahi aghdam, Abdollah, Mohsen Chamanara, Reza Laripour, and Mohsen Ebrahimi. "Micro-extraction, pre-concentration, and microfluidic-based separation of organophosphate insecticides followed by the miniaturized electrochemical detection system." BioImpacts, July 18, 2023. http://dx.doi.org/10.34172/bi.2023.25288.

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Introduction: A new analytical method based on the coupling of microextraction and microfluidics was developed and investigated for the pre-concentration, separation, and electrochemical detection of fenitrothion (FT) and parathion (PA) at the sub-ppm concentrations. Method: In the first step, the microchip capillary electrophoresis technique was used to serve as a separation and detection system. Analytes were injected into the 40 mm long microchannel with 10 mm sidearms. Then, they were separated by applying a direct electrical field (+1800V) between buffer and detection reservoirs. 2-(n-mor

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Dissertations / Theses on the topic "GC microchips"

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Meziani, Amel. "Développement de méthodes d'extraction et de quantification de résidus de polluants et substances émergentes substances dans les eaux naturelles résiduaires par GCxμGC et GCxGC/HRMS". Electronic Thesis or Diss., Normandie, 2023. http://www.theses.fr/2023NORMR036.

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La pollution des eaux est une problématique majeure qui affecte tant les écosystèmes aquatiques que sur la santé humaine. Par conséquent, la prévention et la surveillance des pollutions constituent donc un enjeu prioritaire afin d’éviter la dissémination de ces polluants. Dans ce contexte, il est essentiel de recourir à la miniaturisation des systèmes et à des méthodes analytiques afin de surveiller en temps réel l'évolution de la pollution sur le terrain. Dans le cadre de ces travaux de thèse, tout d’abord, la préparation et l’évaluation de µ-colonnes de types multicanaux en GC a été réalisée

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Jen, Hsiu-Ping, and 任修平. "GC/MS, On-line Preconcentration Techniques in Capillary Electrophoresis and Microchip Electrophoresis for the Analyses of Abused Drugs." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/50560479677246275954.

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博士<br>國立交通大學<br>應用化學系所<br>94<br>Illicit and abused drugs are often known by street names that vary from area to area. A call to a local police station, or animal or human poison control center, can be extremely helpful in identifying the illicit substance. Most human hospitals, emergency clinics, or veterinary diagnostic laboratories have illicit drug screens available and can check for the presence of illicit drugs or their metabolites in different body fluids. The presence of a parent drug or its metabolites in blood or urine may help confirm the exposure in suspect cases. Veterinarians shou

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