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Quantification of Hydrogen Cyanine in Humid Air by Selected Ion Flow Tube Mass Spectrometry

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F04%3A00107661" target="_blank" >RIV/61388955:_____/04:00107661 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Quantification of Hydrogen Cyanine in Humid Air by Selected Ion Flow Tube Mass Spectrometry

  • Original language description

    Following our recent observation that Pseudomonas bacteria in vitro emit hydrogen cyanide, we have found it necessary to investigate the ion chemistry of this compound and to extend the kinetics database for selected ion flow tube mass spectrometry (SIFT-MS) to allow the accurate quantification of HCN in moist air samples, including exhaled breath. Because of the proximity of the proton affinities of HCN and H2O molecules, the presence of water vapour can significantly distort HCN analysis in the presence of water vapour and a more sophisticated analytical procedure has to be developed. Thus, the reactions of H3O+(H2O)0,1,2,3 ions with HCN molecules have been studied in the presence of varying concentrations of water vapour, reactions on which SIFT-MSanalysis of HCN relies. The results of these experiments have allowed an analytical procedure to be developed which has extended the kinetics database of SIFT-MS, such that HCN can now be quantified in humid air and in exhaled breath.

  • Czech name

    Kvantifikace kyanovodíku ve vlhkém vzduchu pomocí hmotnostní spektrometrie v proudové trubici s vybranými ionty SIFT-MS

  • Czech description

    Vzhledem k nedávnému pozorování emise kyanovodíku bakteriemi kmene Pseudomonas "in vitro" bylo třeba prozkoumat iontovou chemii HCN a rozšířit databázi kinetických dat pro metodu proudové trubice s vybranými ionty SIFT-MS tak aby bylo možno přesně stanovit koncentrace HCN ve vlhkých vzorcích vzduchu, včetně exhalovaného dechu Protože protonové afinity HCN a H2O jsou velice blízké, přítomnost molekul vody může narušit analýzu HCN za přítomnosti vodní páry a proto bylo nutno vyvinout sofistikovanou analytickou proceduru Reakce iontů typu H3O+(H2O)(0,1,2,3) s molekulami HCN byly prozkoumány v závislosti na proměnné koncentraci vodní páry. Databáze kinetických dat pro metodu SIFT-MS byla rozšířena a HCN nyní může být kvantifikováno ve vlhkém vzduchu a exhalovaném dechu.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    CF - Physical chemistry and theoretical chemistry

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2004

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Rapid Communications in Mass Spectrometry

  • ISSN

    0951-4198

  • e-ISSN

  • Volume of the periodical

    18

  • Issue of the periodical within the volume

    -

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    5

  • Pages from-to

    1869-1873

  • UT code for WoS article

  • EID of the result in the Scopus database