Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-12-2
pubmed:abstractText
A solid-phase microextraction (SPME)-GC procedure has been developed for the analysis of four selected pesticides (propanil, acetochlor, myclobutanil and fenoxycarb) in water samples. Mass spectrometry (MS) was used and two different instruments, a quadrupole MS system and an ion trap operating in the MS-MS mode, were compared. A Carbowax-divinylbenzene SPME fiber was used. The performances of the two GC-MS instruments were comparable in terms of linearity (in the range of 0.1-10 microg/l in water samples) and sensitivity (limits of detection were in the low ng/l range); the quadrupole MS instrument gave better precision than the ion trap MS-MS system, but generally the relative standard deviations for replicates were acceptable for both instruments (<15%). Specificity with these two instruments was comparable in the analysis of ground water samples. Recovery tests were made to assess the applicability of the SPME procedure in the quantitative analysis of contaminated groundwaters.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0021-9673
pubmed:author
pubmed:issnType
Print
pubmed:day
29
pubmed:volume
859
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
193-201
pubmed:dateRevised
2009-1-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Analysis of some pesticides in water samples using solid-phase microextraction-gas chromatography with different mass spectrometric techniques.
pubmed:affiliation
Department of Environmental Health, Istituto di Ricerche Farmacologiche Mario Negri, Milan, Italy. natangelo@irfmn.mnegri.it
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't