TITLE

Troubleshooting with cell blanks in PLE extraction

AUTHOR(S)
Fernández-González, V.; Grueiro-Noche, G.; Concha-Graña, E.; Turnes-Carou, M. I.; Muniategui-Lorenzo, S.; López-Mahía, P.; Prada-Rodríguez, D.
PUB. DATE
September 2005
SOURCE
Analytical & Bioanalytical Chemistry;Sep2005, Vol. 383 Issue 2, p174
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The blank extracts obtained from the pressurized liquid extraction (PLE) of a 11 mL empty cell of ASE 200 were analysed by GC-FID and GC-ECD and many interfering peaks were detected, which could difficult the trace analysis of persistent organic pollutants (i.e. polycyclic aromatic hydrocarbons, aliphatic hydrocarbons and organochlorine pesticides). These interfering compounds were identified as phthalates, silicones and organic acids and their sources were established. A solution to this analytical trouble is a previous extraction step of the empty cell under the same conditions optimised for the sample extraction.
ACCESSION #
18527393

 

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