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Dissertations / Theses on the topic 'Ultratrail'

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1

Mashal, Mohammad Shafiq. "Développement et validation d'une méthode HPLC-MS/HRMS pour le criblage d'AINS dans la salive et le sang capillaire : application à l'étude de la prévalence des AINS dans l'ultratrail." Electronic Thesis or Diss., Lyon 1, 2022. https://n2t.net/ark:/47881/m63n2397.

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Les anti-inflammatoires non stéroidiens (AINS) sont l’un des médicaments les plus utilisés dans le monde, accessibles sur ordonnances ou en vente libre. Plusieurs articles ont fait état d’une forte consommation d’AINS par des coureurs pendant les ultratrails. Plusieurs études montrent qu’environ 50% des coureurs utillisent des AINS sans ordonnance médicale, sans forcément connaître leurs effets indésirables et leur toxicité. A ce jour, seulement des données basées sur des questionnaires ont été rapportées sur la prévalence des AINS chez les ultratrailers. Or, en raison de la méconnaissance des
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2

Ding, Wenwu Carleton University Dissertation Chemistry. "Electrochemical hydride generation for ultratrace analysis." Ottawa, 1995.

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3

Hernández, Belén. "Ultratrace analysis by resonance ionisation mass spectrometry (RIMS)." Thesis, Manchester Metropolitan University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.396526.

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4

Xu, Fei 1971. "Investigation of Ultratrace Metallic and Organic Contaminants in Semiconductor Processing Environments." Thesis, University of North Texas, 1997. https://digital.library.unt.edu/ark:/67531/metadc277845/.

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Detection of ultratrace levels of metallic ion impurities in hydrofluoric acid solutions and alkaline hydrogen peroxide solution was demonstrated using a silicon-based sensing electrode. The sensor's operation principle is based on direct measurements of the silicon open-circuit potential shift generated by the interaction between metallic ions and the silicon-based sensing surface. The new sensor can have practical applications in the on-line monitoring of microelectronic chemical processing. The detection of Ag+ content in KODAK waste water was carried out successfully by this novel sensor.
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5

Taylor, Ian. "Novel chelating silicas for the preconcentration of ultratrace metals in natural waters." Thesis, University of Southampton, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316134.

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6

Worrasettapong, Watcharapong. "Ultratrace analysis and speciation studies on trace elements in environmental and biological samples." Thesis, University of Sheffield, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269381.

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7

Huber, Jessica [Verfasser]. "Development of enhanced analytical methods for ultratrace determination of mercury in natural water / Jessica Huber." Ulm : Universität Ulm, 2017. http://d-nb.info/1138277746/34.

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8

HASEGAWA, Takuya, Hirotaka MATSUURA, Kazumi INAGAKI, and Hiroki HARAGUCHI. "Major-to-Ultratrace Elements in Bone-Marrow Fluid as Determined by ICP-AES and ICP-MS." 日本分析化学会, 2003. http://hdl.handle.net/2237/8747.

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9

Wallace, Nicole. "Forensic Science Applications Utilizing Nanomanipulation-Coupled to Nanospray Ionization-Mass Spectrometry for the Analysis of Ultra-Trace Illicit Drugs." Thesis, University of North Texas, 2010. https://digital.library.unt.edu/ark:/67531/metadc33209/.

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Presented in this thesis are two methods that are coupled to the instrumentation for the recovery and analysis of ultra-trace illicit drug residues. The electrostatic dust lifting process is coupled with nanomanipulation-nanospray ionization to retrieve drug particles off of hard surfaces for analysis. For the second method, drug residues from fingerprint impressions are extracted followed by analysis. The methodology of these hyphenated techniques toward forensic science applications is applied as to explore limits of detection, sensitivity, and selectivity of analytes as well as immediacy an
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10

Darrouzes, Jérôme. "Amélioration des étapes analytiques pour la spéciation du sélénium au niveau ultratrace : Apport d'un spectromètre de masse à couplage inductif équipé d'une cellule de collision/réaction (ICP-CC/R-MS)." Pau, 2005. http://www.theses.fr/2005PAUU3029.

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Au vu de l'importance des propriétés du sélénium, de nombreux travaux ont été menés afin de développer des méthodes d'analyse de spéciation de cet élément. Le couplage entre la chromatographie liquide haute performance et le spectromètre de masse à couplage inductif est le plus utilisé. L'objectif des travaux réalisés dans le cadre de cette thèse a été d'atteindre l'analyse de spéciation du sélénium au niveau ultratrace, incluant à la fois des composés organiques et inorganiques. Pour cela, nous avons utilisé les dernières générations d'ICPMS quadripolaires équipés d'un dispositif de collision
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11

Thomas, Stephen Bradley. "Characterisation of ambient fine and ultrafine atmospheric aerosols." Thesis, Queensland University of Technology, 2001.

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12

Tria, J. "Ultratrace determination of aluminium in seawater and complex samples." Thesis, 2009. https://eprints.utas.edu.au/22238/1/whole_TriaJuliette2009_thesis.pdf.

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Oceanographers use surface aluminium concentrations in open-ocean seawater as a tracer to fingerprint the location and magnitude of atmospheric dust deposition. It has become increasingly important to understand the role that such deposition plays in supplying trace elements to surface waters and consequently the effects such episodic supply has on moderating biological processes. For the purpose of real time analysis, quantification must be carried out by a system capable of being deployed shipboard. The most commonly employed technique for this purpose is flow injection analysis (FIA)
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13

Weng, Yuh-Fen, and 翁玉芬. "Analysis and control of ultratrace taste-and-odor organic mpound-geosmin." Thesis, 1993. http://ndltd.ncl.edu.tw/handle/29691425480205130456.

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14

qqang, Hui-ju, and 張惠如. "Determination of ultratrace ammounts of cadmium, cobalt and nickel in seawater by graphite furnace atomic absorption spectrometery with on-line preconcentration." Thesis, 1998. http://ndltd.ncl.edu.tw/handle/42156068536722596847.

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15

Long, Chen Shun, and 陳順隆. "Determination of Ultratrace Amounts of Metals and Speciation of Arsenic and Chromium in Environmental Water Samples by On-Line Analytical System." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/72366370401266693123.

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16

Yang, Mo Xiong, and 楊末雄. "Determination of ultratrace amounts of metals and speciation of arsenic and chromium in environmental water samples by on-line analytical system." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/79448095528497576699.

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