Linked Life Data

19942251

Source:http://linkedlifedata.com/resource/pubmed/id/19942251

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2010-1-29
pubmed:abstractText
Preparative capillary gas chromatography (pcGC) provides novel high resolution fractionation opportunities in effect-directed analysis. However, harvesting efficiency strongly depends on the operating parameters of the system. Therefore, the performance of the pcGC system was optimised by identifying the best operating parameters for the preparative fraction collector (PFC) using six test analytes with different physicochemical properties. The present study indicates that pcGC parameters need to be selected individually for the investigated analytes. The major focus was put on the trapping parameters as published findings on optimum trapping conditions are very variable. No generally agreed concept is available. An alternative to temperature-controlled trapping are solvent-filled traps. The solvent dichloromethane (DCM) proved to be most suitable for a large range of compounds. Recoveries are equal to optimised dry trapping at defined temperature. Optimised recoveries were in the range of 50-70% for all compounds except benzo[a]pyrene with a recovery of 94% using one PFC and DCM-filled traps at trapping temperature of -10 degrees C, at PFC temperatures of 300 degrees C for phenol, 400 degrees C for benzo[a]pyrene and 320 degrees C for the remaining analytes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1879-1298
pubmed:author
pubmed:copyrightInfo
Copyright 2009 Elsevier Ltd. All rights reserved.
pubmed:issnType
Electronic
pubmed:volume
78
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
416-22
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
Optimisation of trapping parameters in preparative capillary gas chromatography for the application in effect-directed analysis.
pubmed:affiliation
UFZ - Helmholtz Centre for Environmental Research, Department of Effect-Directed Analysis, Permoserstrasse 15, D-04318 Leipzig, Germany. cornelia.meinert@ufz.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't