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PURGE-AND-TRAP METHOD [1 record]
Record 1 - internal organization data 1990-09-12
Record 1, English
Record 1, Subject field(s)
- Analytical Chemistry
Record 1, Main entry term, English
- purge-and-trap method of sample preparation
1, record 1, English, purge%2Dand%2Dtrap%20method%20of%20sample%20preparation
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- purge-and-trap method 1, record 1, English, purge%2Dand%2Dtrap%20method
correct
- purge-and-trap sample preparation method 2, record 1, English, purge%2Dand%2Dtrap%20sample%20preparation%20method
proposal
- purge-and-trap 3, record 1, English, purge%2Dand%2Dtrap
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A systematic approach to pesticide identification developed by Suzuki uses column chromatography, thin-layer chromatography and gas-liquid chromatography. Mass spectroscopy (MS) is also a powerful tool for the identification of compounds. ... The Environmental Protection Agency (EPA) had defined volatile priority pollutants as those amenable to analysis by the purge-and-trap method of sample preparation. ... This method is generally applicable for substances with low water solubility and boiling points below 130 ° C. 1, record 1, English, - purge%2Dand%2Dtrap%20method%20of%20sample%20preparation
Record number: 1, Textual support number: 2 CONT
The EPA method of screening for volatile compounds involves purging the sample with helium and trapping the volatilized organic compounds on a column of Tenax GC and silica gel at room temperature. The organic material is then thermally desorbed onto the gas chromatographic column. ... The purge-and-trap methods cited most often are those developed by Bellar and Lichtemberg although many similar techniques have been developed by other researchers. 1, record 1, English, - purge%2Dand%2Dtrap%20method%20of%20sample%20preparation
Record 1, French
Record 1, Domaine(s)
- Chimie analytique
Record 1, Main entry term, French
- méthode de préparation d'échantillons par purge et piégeage
1, record 1, French, m%C3%A9thode%20de%20pr%C3%A9paration%20d%27%C3%A9chantillons%20par%20purge%20et%20pi%C3%A9geage
proposal, see observation, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- méthode de préparation d'échantillons par purge et piège 1, record 1, French, m%C3%A9thode%20de%20pr%C3%A9paration%20d%27%C3%A9chantillons%20par%20purge%20et%20pi%C3%A8ge
proposal, see observation, feminine noun
- préparation d'échantillons par purge et piégeage 1, record 1, French, pr%C3%A9paration%20d%27%C3%A9chantillons%20par%20purge%20et%20pi%C3%A9geage
proposal, see observation, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
(...) il paraît plus judicieux d'introduire les substances séparées par la colonne chromatographique dans un autre appareil généralement destiné à identifier les échantillons qui lui sont soumis. Le couplage est dit en ligne lorsque les solutés vont directement de la sortie de la colonne au second appareil, sans piégeage intermédiaire. 2, record 1, French, - m%C3%A9thode%20de%20pr%C3%A9paration%20d%27%C3%A9chantillons%20par%20purge%20et%20pi%C3%A9geage
Record number: 1, Textual support number: 2 OBS
Une difficulté est de piéger avec le meilleur rendement possible les solutés à la sortie de la colonne. (...) On fait aussi de la chromatographie préparatoire quand on piège un peu de soluté pour l'introduire dans un spectromètre infrarouge aux fins d'identification, mais les colonnes analytiques classiques suffisent. 3, record 1, French, - m%C3%A9thode%20de%20pr%C3%A9paration%20d%27%C3%A9chantillons%20par%20purge%20et%20pi%C3%A9geage
Record 1, Spanish
Record 1, Textual support, Spanish
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