Gaois

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11 results

  1. INDUSTRY|chemistry

    #643371

    IATE #3514362
    CGMSS Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    crómatagrafaiocht gháis in éineacht le mais-speictriméadracht sraithe Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Gaschromatografie/Tandem-Massenspektrometrie | GC-MS/MS
    de
    gas chromatograph-tandem mass spectrometer | gas chromatograph-tandem mass spectrometry | gas chromatography-tandem mass spectrometry
    en
    Definition "analytical technique coupling gas chromatography1 to tandem mass spectrometry21 gas chromatography [ IATE:1350135 ]2 tandem mass spectrometry [ IATE:157399 ]" Reference "COM-Terminology Coordination, based on:Renata Raina and Patricia Hall. Comparison of Gas Chromatography-Mass Spectrometry and Gas Chromatography-Tandem Mass Spectrometry with Electron Ionization and Negative-Ion Chemical Ionization for Analyses of Pesticides at Trace Levels in Atmospheric Samplesy. Anal Chem Insights 2008; 3: 111-125, http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2701172/ [5.3.2014]"
    chromatographie en phase gazeuse couplée à la spectrométrie de masse en tandem
    fr
    GC-MS/MS | GC-MS-MS | GC/MS/MS
    mul
  2. SCIENCE|natural and applied sciences|physical sciences|chemistry

    #626059

    IATE #1350135
    crómatagrafaíocht gháis Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Gaschromatographie | GC | Gaschromatografie
    de
    Definition chromatografisches Verfahren, bei dem die mobile Phase gasförmig ist Reference E DIN 51405:2000: Prüfung von Mineral-Kohlenwasserstoffen, verwandten Flüssigkeiten und Lösemitteln für Lacke und Anstrichstoffe – Gaschromatographische Analyse – Allgemeine Arbeitsgrundlagen, S. 2
    GC | gas chromatography
    en
    Definition separation technique in which the mobile phase is a gas Reference "IUPAC. Compendium of Chemical Terminology, 2nd ed. (the ""Gold Book""). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 http://goldbook.iupac.org/G02578.html Last update: 2009-09-07; version: 2.1.5 [17.11.2009]"
    Comment "Gas chromatography is always carried out in a column. It is a common type of chromatography used in organic chemistry for separating and analysing compounds that can be vaporised without decompositionIn gas chromatography the distinction between gas-liquid and gas-solid may be obscure because liquids are used to modify solid stationary phases, and because the solid supports for liquid stationary phases affect the chromatographic process. For classification by the phases used, the term relating to the predominant effect should be chosen.See also:- gas chromatography/mass spectroscopy (related) [ IATE:1295813 ]- gas chromatographic separation (related) [ IATE:1094399 ]- gas-liquid chromatography (narrower) [ IATE:1479581 ]- gas-solid chromatography (narrower) [ IATE:1717974 ]"
    chromatographie en phase gazeuse | CPG | CG | chromatographie gazeuse
    fr
  3. SCIENCE|natural and applied sciences|physical sciences|chemistry

    #624690

    IATE #1289868
    crómatagrafaíocht gháis ardtaifigh Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    hochauflösende Gaschromatographie | Hochauflösungs-Gaschromatographie | HRGC
    de
    HRGC | high resolution gas chromatography
    en
    Definition "a gas chromatography ( IATE:1350135 ) technique which uses with higher thermal stability, and which is thus more efficient, since it allows the analysis of semivolatile and medium molecular mass compounds" Reference "Based on: Jack Cazes. Encyclopedia of chromatography http://books.google.com/books?id=3Jeu8rMnbyEC&pg=PA405&lpg=PA405&dq=%22high+resolution+gas+chromatography%22&source=bl&ots=DEX0rcw193&sig=S3FkITZL3rSyt3QRTRPVy7Y9AA8&hl=en&ei=RGbxSrDLE4Pt-AaQlN3kAg&sa=X&oi=book_result&ct=result&resnum=4&ved=0CBwQ6AEwAzgK#v=onepage&q=%22high%20resolution%20gas%20chromatography%22&f=false [4.11.2009]"
    CGHR | chromatographie en phase gazeuse à haute résolution
    fr
  4. INDUSTRY|chemistry

    #620561

    IATE #1140465
    crómatagrafaíocht gháis le colún ribeach Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Kapillargaschromatographie | Kapillargaschromatografie | Kapillar-Gaschromatographie | KGC
    de
    capillary column gas chromatography | capillary-column gas chromatography | CC/GC | capillary gas chromatography | CGC
    en
    Definition gas chromatography using a capillary column instead of a packed column Reference "Based on: The Chemistry Hypermedia Project. Gas Chromatography Columns, http://www.files.chem.vt.edu/chem-ed/sep/gc/gc-col.html [31.8.2009]"
    chromatographie en phase gazeuse avec colonne capillaire
    fr
  5. INDUSTRY|chemistry · SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry

    #616757

    IATE #1009066
    crómatagrafaíocht gháis le brathadóir leictreonghabhála Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Gaschromatografie mit Elektroneneinfangdetektor | Gaschromatographie mit Elektroneneinfangdetektor
    de
    gas chromatography with an electron capture detector | Gas Chromatography / Electron Capture Detection
    en
    Definition gas chromatography method associated with a detector which uses a radioactive beta emitter (electrons) to ionise some of the carrier gas and produce a current between a biased pair of electrodes, so that when organic molecules that contain electronegative functional groups, such as halogens, phosphorous, and nitro groups pass by the detector, they capture some of the electrons and reduce the current measured between the electrodes Reference "COM-Terminology Coordination, based on:Shimadzu GC-8A with ECD Detector: Gas Chromatography. University of Nebraska-Lincoln. Department of Chemistry, http://www.chem.unl.edu/uic/gc-ecd.shtml [17.3.2014] & Brian M. Tissue. Electron Capture Detectors(ECD). ON-LINE EDUCATIONAL HYPERMEDIA, http://elchem.kaist.ac.kr/vt/chem-ed/sep/gc/detector/ecd.htm [17.3.2014]"
    chromatographie en phase gazeuse avec détection à capture d'électrons | chromatographie en phase gazeuse avec détecteur à capture d'électrons
    fr
    Definition technique utilisée pour détecter des traces de composés chimiques dans un échantillon (et notamment pour analyser des composés halogénés) et qui associe la chromatographie en phase gazeuse avec un dispositif qui permet de détecter les atomes et les molécules d'un gaz à travers l'attachement des électrons par ionisation Reference COM-FR, d'après diverses sources.
    GC-ECD | GC/ECD
    mul
  6. 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
  7. SCIENCE|natural and applied sciences|physical sciences|chemistry

    #624702

    IATE #1295813
    crómatagrafaíocht gháis/mais-speictriméadracht Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    GC/MS | Gaschromatographie-Massenspektrometrie | Gaschromatographie in Verbindung mit der Massenspektrometrie | GC-MS | Gaschromatographie/Massenspektrometrie
    de
    Definition Die Gaschromatographie eignet sich zur Bestimmung aller gasförmigen o. unzersetzt verdampfbaren Stoffe, also im wesentlichen von organischen Verbindungen. Eine Probe des zu untersuchenden Stoffgemisches wird in einen Trägergasstrom gebracht und durchströmt eine Trennsäule oder -kapillare mit einer speziellen Füllung bzw. Beschichtung. Stoffabhängige Wechselwirkungen in der Säule bewirken, daß die einzelnen Verbindungen unterschiedlich lange zurückgehalten werden und am Ende der Säule zeitlich getrennt austreten. Zur Detektion der austretenden Komponenten stehen verschiedene Techniken zur Verfügung. Mit einem nachgeschalteten Massenspektrometer lassen sich gleichzeitig Aussagen über Art und Menge der jeweiligen Substanz machen (Identifizierung und Quantifizierung). Dazu werden die austretenden Teilchen ionisiert und die gebildeten Molekülionen, die zum Teil zerfallen, entsprechend ihrem Verhältnis Masse/Ladung in einem Magnetfeld aufgetrennt. Das Muster der auftretenden Fragmente kann einem bestimmten Stoff zugeordnet werden. (Quelle s.o.) Reference ---
    Comment DIV: hym 13/11/2002
    GC/MS | GC-MS | gas chromatography/mass spectrometry | gas chromatography-mass spectrometry | gas chromatography/mass spectroscopy
    en
    Definition two techniques that are combined to form a single method of analyzing mixtures of chemicals Reference "George Mason University. Gas Chromatography-Mass Spectroscopy. Background http://www.gmu.edu/departments/SRIF/tutorial/gcd/gc-ms2.htm [17.11.2009]"
    Comment "Gas chromatography ( IATE:1350135 ) separates the components of a mixture and mass spectroscopy ( IATE:1364881 ) characterizes each of the components individually. By combining the two techniques, an analytical chemist can both qualitatively and quantitatively evaluate a solution containing a number of chemicals."
    chromatographie gazeuse-spectrométrie de masse | chromatographie en phase gazeuse couplée à la spectrométrie de masse | GC/MS
    fr
  8. SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry

    #642810

    IATE #3509638
    leachtchrómatagrafaíocht ardfheidhmíochta phas-aisiompaithe ina mbaintear úsáid as grádáin thrínártha Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Umkehrphasen-Hochleistungsflüssigchromatographie mittels eines ternären Gradienten
    de
    ternary gradient reversed-phase high-performance liquid chromatography
    en
    Definition reversed-phase high-performance liquid chromatography with a ternary mobile phase Reference "COM-Terminology Coordination, based on: P. Jandera. 'PREDICTIVE CALCULATION METHODS FOR OPTIMIZATION OF GRADIENT ELUTION USING BINARY AND TERNARY SOLVENT GRADIENTS' (8.2.2024) Journal of Chromatography 485 (1989) 113"
    Comment There are two types of ternary gradient chromatography defined by Jandera as ternary solvent-strength and combined selectivity-solvent-strength. In the case of the former, the ratio of the concentrations of two organic modifiers is kept constant; whilst the sum of the two concentrations is changed (i.e. the solvent-strength increases). In the latter case the ratio of the two organic modifiers and the sum of their concentrations changes simultaneously during gradient elution.
    chromatographie en phase liquide à haute performance à gradients ternaires et en phase inverse
    fr
  9. INDUSTRY|chemistry

    #646916

    IATE #3532172
    crómatagrafaíocht leachta ardfheidhmíochta le brath eagar dé-óide Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Hochleistungs-Flüssigkeits-Chromatographie mit Diodenarray-Detektor | HPLC-DAD
    de
    high-performance liquid chromatography with diode-array detection | HPLC-DAD | HPLC-diode array detection | high-performance liquid chromatography (HPLC) with diode-array detection (DAD) | high-performance liquid chromatography-diode array detection | HPLC/DAD
    en
    CLHP-DAD | CLHP/DAD | chromatographie en phase liquide à haute performance avec détecteur à barrettes de diodes | chromatographie liquide à haute pression couplée à un détecteur à barette de diodes
    fr
    Comment "Pour une description du processus de chromatographie liquide haute performance et des différentes méthodes utilisées, voir le document pédagogique de l'académie de Nancy-Metz: http://www.ac-nancy-metz.fr/enseign/physique/chim/jumber/hplc/chromatographie_en_phase_liquide_fichiers/hplc.html [17.8.2012]"
  10. SCIENCE|natural and applied sciences|physical sciences|chemistry|analytical chemistry

    #635221

    IATE #1704876
    crómatagrafaíocht leachta ardfheidhmíochta Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Context 'Tá crómatagrafaíocht gháis agus crómatagrafaíocht leachta ardfheidhmíochta ina dteicnící crómatagrafaíochta níos forbartha.' Reference """Ceimic na hArdteistiméireachta, Treoirlínte do Mhúinteoirí"", An Roinn Oideachais agus Eolaiochta, http://www.curriculumonline.ie/getmedia/750821d9-9f9a-473f-a4c6-30dbfa1082f2/SCSEC09_Chemistry_guidelines_gaeilge.pdf [15.5.2014]"
    HPLC Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Hochdruck-Flüssigkeitschromatographie | Hochleistungsflüssigkeitschromatographie | Hochleistungsflüssigkeitschromatografie | Hochleistungs-Flüssigchromatographie | Hochleistungs-Flüssigchromatografie | Hochleistungsflüssigchromatographie | Hochleistungsflüssigchromatografie | HPLC | Hochdruck-Flüssigkeitschromatografie | Hochdruckflüssigkeitschromatographie | Hochdruckflüssigkeitschromatografie | Hochdruck-Flüssigchromatographie | Hochdruck-Flüssigchromatografie | Hochdruckflüssigchromatographie | Hochdruckflüssigchromatografie | Hochleistungs-Flüssigkeitschromatographie | Hochleistungs-Flüssigkeitschromatografie
    de
    Definition Art der Flüssigchromatografie, bei der man sehr kleine Teilchen und einen relativ hohen Eingangsdruck verwendet Reference "Engelhardt H., Rohrschneider L. (Bearbeiter), ""Deutsche chromatographische Grundbegriffe zur IUPAC-Nomenklatur"", Gesellschaft Deutscher Chemiker, Fachgruppe Analytische Chemie, Arbeitskreis Chromatographie, ca. 1999, S. 6, http://www.uni-saarland.de/fak8/huber/pdf/CHROBEGR97.pdf (28.07.2010)"
    HPLC | high performance liquid chromatography | high-performance liquid chromatography | high-pressure liquid chromatography
    en
    Definition a variation of liquid chromatography that utilises very small particles and a relatively high inlet pressure to increase the efficiency of the separation Reference "Based on: Rautiu & Tissue, Gloss. of Selected Terms, 1999, ICON & IUPAC. Compendium of Chemical Terminology, 2nd ed. (the ""Gold Book""). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8 http://goldbook.iupac.org/L03578.html [8.9.2009]"
    chromatographie liquide à hautes performances | CLHP | chromatographie en phase liquide sous haute pression
    fr
    Definition technique d'analyse des hydrocarbures permettant de déterminer le dosage sélectif des hydrocarbures aromatiques polycycliques Reference ---
  11. INDUSTRY|chemistry

    #624726

    IATE #1305786
    leachtchrómatagrafaíocht ardfheidhmíochta phas-aisiompaithe Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
    ga
    Umkehrphasen-Hochleistungsflüssigchromatographie | Umkehrphasen-Hochleistungsflüssigkeitschromatographie | Umkehrphasen-Hochleistungsflüssigkeitschromatografie | Umkehrphasen-Hochdruckflüssigchromatographie | Umkehrphasen-Hochdruckflüssigkeitschromatographie | RP-HPLC
    de
    RP-HPLC | reversed phase high performance liquid chromatography | reversed-phase high performance liquid chromatography | reverse phase high performance liquid chromatography, reverse-phase high performance liquid chromatography
    en
    Definition in this chromatographic technique, the packing is nonpolar and the solvent is polar with respect to the sample. Retention is the result of the interaction of the nonpolar components of the solutes and the nonpolar stationary phase. Reference "Iowa State University, Office of Biotechnology http://www.protein.iastate.edu/hplc.html [7.10.2009]"
    chromatographie liquide haute performance en phase inverse | CLHP-PI
    fr