Optimisation of the on-fibre derivatisation of volatile fatty acids in the simultaneous determination together with phenols and indoles in cow slurriesLARRETA, J; USOBIAGA, A; ETXEBARRIA, N et al.Analytical and bioanalytical chemistry. 2007, Vol 389, Num 5, pp 1603-1609, 7 p.Article

MultiSimplex optimisation and comparison of different purge-and-trap extractions of volatile organic compounds in soil samplesZULOAGA, O; ETXEBARRIA, N; FERNANDEZ, L. A et al.Analytica chimica acta. 2000, Vol 416, Num 1, pp 43-53, issn 0003-2670Article

Optimization and comparison of MAE, ASE and Soxhlet extraction for the determination of HCH isomers in soil samplesZULOAGA, O; ETXEBARRIA, N; FERNANDEZ, L. A et al.Fresenius' journal of analytical chemistry. 2000, Vol 367, Num 8, pp 733-737, issn 0937-0633Article

Comprehensive two-dimensional gas chromatography to characterize hydrocarbon mixtures in lithic materialsOLIVARES, M; IRAZOLA, M; VALLEJO, A et al.Journal of chromatography. 2011, Vol 1218, Num 12, pp 1656-1662, issn 0021-9673, 7 p.Article

Simultaneous speciation of methylmercury and butyltin species in environmental samples by headspace-stir bar sorptive extraction-thermal desorption-gas chromatography-mass spectrometryPRIETO, A; ZULOAGA, O; USOBIAGA, A et al.Journal of chromatography. 2008, Vol 1185, Num 1, pp 130-138, issn 0021-9673, 9 p.Article

Multisimplex optimisation of purge-and-trap extraction of volatile organic compounds in soil samplesZULOAGA, O; ETXEBARRIA, N; ZUBIAUR, J et al.Analyst (London. 1877. Print). 2000, Vol 125, Num 3, pp 477-480, issn 0003-2654Article

Optimisation and comparison of microwave-assisted extraction and Soxhlet extraction for the determination of polychlorinated biphenyls in soil samples using an experimental design approachZULOAGA, O; ETXEBARRIA, N; FERNANDEZ, L. A et al.Talanta (Oxford). 1999, Vol 50, Num 2, pp 345-357, issn 0039-9140Conference Paper

Comparison of microwave-assisted extraction and Soxhlet extraction for phenols in soil samples using experimental designsEGIZABAL, A; ZULOAGA, O; ETXEBARRIA, N et al.Analyst (London. 1877. Print). 1998, Vol 123, Num 8, pp 1679-1684, issn 0003-2654Article

Matrix effect during the membrane-assisted solvent extraction coupled to liquid chromatography tandem mass spectrometry for the determination of a variety of endocrine disrupting compounds in wastewaterIPARRAGUIRRE, A; NAVARRO, P; RODIL, R et al.Journal of chromatography. 2014, Vol 1356, pp 163-170, issn 0021-9673, 8 p.Article

In-port derivatization after sorptive extractionsBIZKARGUENAGA, E; IPARRAGIRRE, A; NAVARRO, P et al.Journal of chromatography. 2013, Vol 1296, pp 36-46, issn 0021-9673, 11 p.Article

Selective determination of estrogenic compounds in water by microextraction by packed sorbents and a molecularly imprinted polymer coupled with large volume injection-in-port-derivatization gas chromatography―mass spectrometryPRIETO, A; VALLEJO, A; ZULOAGA, O et al.Analytica chimica acta. 2011, Vol 703, Num 1, pp 41-51, issn 0003-2670, 11 p.Article

Distribution and bioaccumulation of PAHs in the UNESCO protected natural reserve of Urdaibai, Bay of BiscayCORTAZAR, E; BARTOLOME, L; ARRASATE, S et al.Chemosphere (Oxford). 2008, Vol 72, Num 10, pp 1467-1474, issn 0045-6535, 8 p.Article

Development of a stir bar sorptive extraction and thermal desorption-gas chromatography-mass spectrometry method for the simultaneous determination of several persistent organic pollutants in water samplesPRIETO, A; ZULOAGA, O; USOBIAGA, A et al.Journal of chromatography. 2007, Vol 1174, Num 1-2, pp 40-49, issn 0021-9673, 10 p.Conference Paper

Optimization of large volume injection-programmable temperature vaporization-gas chromatography-mass spectrometry analysis for the determination of estrogenic compounds in environmental samplesVALLEJO, A; FERNANDEZ, L. A; OLIVARES, M et al.Journal of chromatography. 2010, Vol 1217, Num 52, pp 8327-8333, issn 0021-9673, 7 p.Article

Stir-bar sorptive extraction: A view on method optimisation, novel applications, limitations and potential solutionsPRIETO, A; BASAURI, O; RODIL, R et al.Journal of chromatography. 2010, Vol 1217, Num 16, pp 2642-2666, issn 0021-9673, 25 p.Article

Use of experimental design in the optimisation of stir bar sorptive extraction followed by thermal desorption for the determination of brominated flame retardants in water samplesPRIETO, A; ZULOAGA, O; USOBIAGA, A et al.Analytical and bioanalytical chemistry. 2008, Vol 390, Num 2, pp 739-748, 10 p.Article

Simultaneous extraction of several persistent organic pollutants in sediment using focused ultrasonic solid-liquid extractionERREKATXO, A; PRIETO, A; ZULOAGA, O et al.Analytical & bioanalytical chemistry (Print). 2008, Vol 392, Num 7-8, pp 1471-1478, issn 1618-2642, 8 p.Article

Overview of extraction, clean-up and detection techniques for the determination of organic pollutants in sewage sludge: A reviewZULOAGA, O; NAVARRO, P; BIZKARGUENAGA, E et al.Analytica chimica acta. 2012, Vol 736, pp 7-29, issn 0003-2670, 23 p.Article

Occurrence and Distribution of Metals in Mussels from the Cantabrian CoastBARTOLOME, L; NAVARRO, P; RAPOSO, J. C et al.Archives of environmental contamination and toxicology (Print). 2010, Vol 59, Num 2, pp 235-243, issn 0090-4341, 9 p.Article

Polycyclic Aromatic Hydrocarbons in Intertidal Marine Bivalves of Sunderban Mangrove Wetland, India: An Approach to Bioindicator SpeciesZULOAGA, O; PRIETO, A; USOBIAGA, A et al.Water, air and soil pollution. 2009, Vol 201, Num 1-4, pp 305-318, issn 0049-6979, 14 p.Article

Simultaneous preconcentration of a wide variety of organic pollutants in water samples Comparison of stir bar sorptive extraction and membrane-assisted solvent extractionPRIETO, A; TELLERIA, O; ETXEBARRIA, N et al.Journal of chromatography. 2008, Vol 1214, Num 1-2, pp 1-10, issn 0021-9673, 10 p.Article

Accelerated extraction for determination of polycyclic aromatic hydrocarbons in marine biotaSANZ-LANDALUZE, J; BARTOLOME, L; ZULOAGA, O et al.Analytical and bioanalytical chemistry. 2006, Vol 384, Num 6, pp 1331-1340, 10 p.Article

Comparison of solid phase extraction, saponification and gel permeation chromatography for the clean-up of microwave-assisted biological extracts in the analysis of polycyclic aromatic hydrocarbonsNAVARRO, P; CORTAZAR, E; BARTOLOME, L et al.Journal of chromatography. 2006, Vol 1128, Num 1-2, pp 10-16, issn 0021-9673, 7 p.Article

Simultaneous microwave-assisted extraction of polycyclic aromatic hydrocarbons, polychlorinated biphenyls, phthalate esters and nonylphenols in sedimentsBARTOLOME, L; CORTAZAR, E; RAPOSO, J. C et al.Journal of chromatography. 2005, Vol 1068, Num 2, pp 229-236, issn 0021-9673, 8 p.Article

Determination of tributyltin in marine sediment: Comité Consultatif pour la Quantity de Matière (CCQM) pilot study P-18 international intercomparisonSTURGEON, R. E; WAHLEN, R; TAKATSU, A et al.Analytical and bioanalytical chemistry. 2003, Vol 376, Num 6, pp 780-787, 8 p.Article