Gaois

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2 results

  1. SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry

    #626049

    IATE #1350054
    tréimhse choinneála Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Retentionszeit | tR | Gesamtretentionszeit | Bruttoretentionszeit | Brutto-Retentionszeit | Elutionszeit
    de
    Definition die Zeit, die von der Aufgabe der Probe bis zum Erscheinen des Signalmaximums auf dem Schreiber verstreicht Reference "Böcker Jürgen, ""Chromatographie : Instrumentelle Analytik mit Chromatographie und Kapillarelektrophorese"", Vogel, Würzburg, 1997, ISBN 3-8023-1582-0, S. 39"
    retention time
    en
    Definition """The time between sample injection and an analyte peak reaching a detector at the end of the column is termed the retention time (tR ). Each analyte in a sample will have a different retention time. """ Reference "Chromatography - Introductory theory http://teaching.shu.ac.uk/hwb/chemistry/tutorials/chrom/chrom1.htm [4.4.2008]"
    temps de rétention
    fr
    Definition temps nécessaire pour qu'un soluté soit élué à son maximum de concentration Reference "Dictionnaire en ligne de l'académie nationale de pharmacie, vedette résolution, http://dictionnaire.acadpharm.org/w/R%C3%A9solution"
    Comment "C'est la principale grandeur de rétention. Il est noté tR (en minutes). Il varie en fonction du débit, de la température d'élution, de la composition de la phase mobile et du vieillissement de la colonne.Temps que met le soluté à sortir de la colonne, c’est-à-dire le temps écoulé entre l’injection et le maximum du pic du composé élué.http://www.lachimie.fr/analytique/chromatographie/grandeurs-retention.php"
  2. SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry

    #656427

    IATE #3570043
    crómatagrafaíocht gháis in éineacht le mais-speictriméadracht agus a dtréimhse choinneála glasáilte Reference "Faofa ag an gCoiste Téarmaíochta, www.tearma.ie ;Faomhadh an téarma seo mar chuid de Thionscadal Lex"
    ga
    gas chromatography–mass spectrometry with retention time locking | retention time locked gas chromatography–mass spectrometry | GC-MS-RTL
    en
    Comment "'Retention time' is one of the most important chromatographic features for analytical chemists since it is the key parameter to separate, identify and quantify compounds of interest from complex mixtures. Although detectors with higher-dimensional signals ease the identification of many components, there are demanding requirements on the retention time, particularly when high-throughput methods are considered. In addition to this, gas chromatographic elution shows significant run-to-run variations due to fluctuations in temperature and pressure, column degradation or matrix effects. In this sense, different approaches have been developed to minimise those variations: the introduction of electronic pneumatic control (EPC) systems, which allow a very efficient control of the flow of the carrier gas, the use of peak alignment algorithms to treat the chromatograms, or the use of retention-time locking (RTL)."
    chromatographie en phase gazeuse avec verrouillage des temps de rétention couplée à une spectrométrie de masse
    fr