Development of a methodology for the simultaneous determination of inorganic and organolead compounds using supercritical fluid extraction followed by gas chromatography–mass spectrometry and its application to environmental matrices

• Published in: Talanta (Oxford) Vol. 80; no. 2; pp. 504 - 510
• Main Authors: Zúñiga, M.C., Jover, E., Arancibia, V., Bayona, J.M.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.12.2009; Elsevier
• Subjects: Analytic Sample Preparation Methods - methods; Analytical chemistry; Applied sciences; Carbon dioxide; Chemistry; Chromatographic methods and physical methods associated with chromatography; Chromatography, Supercritical Fluid - methods; Ditiocarb - chemistry; Dust; Environmental Monitoring - methods; Exact sciences and technology; Gas chromatographic methods; Gas Chromatography-Mass Spectrometry - methods; Gas chromatography–mass spectrometry; Geologic Sediments - analysis; Geologic Sediments - chemistry; Global environmental pollution; ISE, Chile; Lead; Lead - analysis; Lead - chemistry; Lead - isolation & purification; Methanol - chemistry; Multivariate optimization; Oil pollution; Organolead compounds; Organometallic Compounds - analysis; Organometallic Compounds - chemistry; Organometallic Compounds - isolation & purification; Pollution; Q1; Q3; Reproducibility of Results; Sand; Sediment pollution; Sodium; Spectrometric and optical methods; Spectrometry; Supercritical CO 2–CH 3OH extraction; Temperature; Tetraethyl Lead - analogs & derivatives; Tetraethyl Lead - analysis; Tetraethyl Lead - chemistry; Tetraethyl Lead - isolation & purification; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - chemistry; Organolead compounds; Supercritical CO 2–CH 3OH extraction; Multivariate optimization; Gas chromatography–mass spectrometry; Temperature; Ligand; In situ; Carbon dioxide; OH extraction; Time; Multivariate analysis; DEDTC; Derivatization; Optimization; Inorganic compound; Target; Sample preparation; Detection limit; Lead; Lead Organic compounds; Supercritical fluid extraction; Methanol; Supercritical CO; Complexation; CH; Method; Gas chromatography-mass spectrometry; Sediments; Certified reference material; Gas chromatography; Dust; Sodium; Experimental design; Volume; Simultaneous measurement; Bromides; Reference material; Environment; Parameter; Factorial design; Application; Mass spectrometry

A method for the extraction of triethyl lead (TEL +), trimethyl lead (TML +), and Pb 2+ from sand was developed using supercritical modified CO 2–CH 3OH extraction and in situ complexation with sodium diethyldithiocarbamate (NaDDTC) using a 2 5 factorial exploratory design is described. The screened...