• Fitzpatrick, L.J., Zuloaga, O., Etxebarria, N., Dean, J.R.  Environmental applications of pressurised fluid extraction Reviews in Analytical Chemistry,  2000;  19(2),  75 - 122
• Pommé, S., Robouch, P., Arana, G., Eguskiza, M., Maguregui, M.I.  Is it safe to use Poisson statistics in nuclear spectrometry? Journal of Radioanalytical and Nuclear Chemistry,  2000;  244 (3),  501 - 506
• Robouch, P., Arana, G., Eguskiza, M., Pommé, S., Etxebarria, N.  Uncertainty budget for k(0)-NAA Journal of Radioanalytical and Nuclear Chemistry,  2000;  245(1),  195 - 197
• Sanz, J., Raposo, J.C., Madariaga, J.M.  Potentiometric study of the hydrolysis of (CH3)Hg+ in NaClO4: construction of a thermodynamic model Applied Organometallic Chemistry,  2000;  14(9),  499 - 506
• Zuloaga, O., Etxebarria, N., Fernández, L.A., Madariaga, J.M.  MultiSimplex optimisation and comparison of different purge-and-trap extractions of volatile organic compounds in soil samples Analytica Chimica Acta,  2000;  416(1),  43 - 53
• Zuloaga, O., Etxebarria, N., Fernández, L.A., Madariaga, J.M.  Optimization and comparison of MAE, ASE and Soxhlet extraction for the determination of HCH isomers in soil samples Fresenius Journal of Analytical Chemistry,  2000;  367(8),  733 - 737
• Zuloaga, O., Etxebarria, N., Fernández, L.A., Madariaga, J.M.  Optimization of focused microwave-assisted extraction of DDT and derivatives from soil samples HRC Journal of High Resolution Chromatography,  2000;  23 (12),  681 - 687
• Zuloaga, O., Etxebarria, N., Zubiaur, J., Fernández, L.A., Madariaga, J.M.  MultiSimplex optimisation of purge-and-trap extraction of volatile organic compounds in soil samples Analyst,  2000;  125(3),  477 - 480
• Zuloaga, O., Fitzpatrick, L.J., Etxebarria, N., Dean, J.R.  Influence of solvent and soil type on the pressurised fluid extraction of PAHs Journal of Environmental Monitoring,  2000;  2(6),  634 - 638