• Dr. Xavier Ortiz Almirall

Dr. Xavier Ortiz Almirall
Laboratorio de Medioambiente
Grupo de Química Analítica y Aplicada
IQS School of Engineering
Universitat Ramon Llull
Via Augusta 390, 08017 Barcelona
Tel. +34 93 2672000
Fax +34 93 2056266


Licenciado en Química (UAB, 2005)
Máster en Investigación en Química e Ingeniería Química (IQS, 2007)
Doctor en Química Analítica (IQS, 2011)
Investigador Postdoctoral (Environment Canada, 2013-2015)
Científico Investigador, laboratorio de espectrometría de masas (Ontario Ministry of the Environment, 2015-2020)
Profesor adjunto, Escuela de Estudios Medioambientales (Queen´s University, Canadà, 2015-2021)
Profesor contratado doctor (IQS, 2021-)


Química General (Grado en Biotecnología)
Química General i Inorgánica (Grado en Farmacia)
Análisis de la Calidad Ambiental (Máster en Química Analítica)


Líneas de Investigación

  • Desarrollo de métodos analíticos (cromatográficos y de espectrometría de masas) para aplicaciones medioambientales
  • Técnicas de análisis no dirigidas (non-targeted analysis)
  • Análisis de cianotoxinas en medios acuosos


Publicaciones relevantes

R. S. Shahmohamadloo, X. Ortiz Almirall, D. D Simmons, D. Porier, S. Bhavsar, P.K. Sibley. Fish tissue accumulation and proteomic response to microcystins is species-dependent. Chemosphere, 2021, 287(12):132028.

R. S. Shahmohamadloo, X. Ortiz Almirall, D. D Simmons, J. Lumdsen, S. Bhavsar, T. Watson-Leung, A. Eyken, G. Hankins, K. Hubbs, P. Konopelko, M. Sarnacki, D. Strong, P.K. Sibley. Cyanotoxins within and Outside of Microcystis aeruginosa Cause Adverse Effects in Rainbow Trout (Oncorhynchus mykiss). Environmental Science & Technology, 2021, 55(15).

Y. Guo, A. O’Brien, T. Lins, R.S. Shahmohamadloo, X. Ortiz Almirall, C.M. Rochman, D. Sinton. Effects of Hydrogen Peroxide on Cyanobacterium Microcystis aeruginosa in the Presence of Nanoplastics. Environmental Science & Technology Water, 2021, 1, 7, 1596–1607

M. Tabatabaei Anaraki, R. S. Shahmohamadloo, P. K. Sibley, K. A. MacPherson, S. P. Bhavsar, J. Simpson, X. Ortiz Almirall. Optimization of an MMPB Lemieux Oxidation method for the quantitative analysis of microcystins in fish tissue by LC-QTOF MS. Science of the Total Environment, 2020 (737), 140209.

F. Dubocq, F. Bjurlid, D. Ydstål, I. A. Titaley, E. J. Reiner, T. Wang, X. Ortiz Almirall, A. Kärrman. Organic contaminants formed during fire extinguishing using different firefighting methods assessed by nontarget analysis. Environmental Pollution, 2020 (265), 114834.

R. M. McKay, T. Frenken, N. Diep, W. R. Cody, S. Crevecoeur, A. Dove, K. G. Drouillard, X. Ortiz Almirall, J. Wintermute, A. Zastepa. Bloom announcement: An early autumn cyanobacterial bloom co-dominated by Aphanizomenon flos-aquae and Planktothrix agardhii in an agriculturally- influenced Great Lakes tributary (Thames River, Ontario, Canada). Data in Brief, 2020 (30), 105585.

J. K. Challis, X. Ortiz Almirall, P. A. Helm, C. S. Wong. Performance of the orgànic diffusive gradients in thin-films passive sampler for measurement of target and suspect wastewater contaminants. Environmental Pollution, 2020 (261), 114092.

R. S. Shahmohamadloo, D. G. Poirier, X. Ortiz Almirall, S. P. Bhavsar, P. K. Sibley. Assessing the toxicity of cell-bound microcystins on freshwater pelagic and benthic invertebrates. Ecotoxicology and Environmental Safety, 2019 (188), 109945.

R. S. Shahmohamadloo, X. Ortiz Almirall, C. Holeton, R. Chong-Kit, D. G. Poirier, S. P. Bhavsar, P. K. Sibley. An efficient and affordable laboratory method to produce and sustain high concentrations of microcystins by Microcystis aeruginosa. Methods X, 2019 (6), 2521-2535.

A. Ccanccapa-Cartagena, Y. Picó, X. Ortiz Almirall, E. J. Reiner. Suspect, non-target and target screening of emerging pollutants using data independent acquisition: Assessment of a Mediterranean River basin. Science of the Total Environment, 2019 (687), 355-368.

S. M. Gene, R. S. Shahmohamadloo, X. Ortiz Almirall, R. S. Prosser. Effect of Microcystis aeruginosa –Associated M icrocystin‐LR on the Survival of 2 Life Stages of Freshwater Mussel (Lampsilis siliquoidea). Environmental Toxicology and Chemistry, 2019 (38), 2137-2144.

M. Tabatabaei Anaraki, R. D. Majumdar, N. Wagner, R. Soong, V. Kovacevic, E. J. Reiner, S. P. Bhavsar, X. Ortiz Almirall, D. Lane, M. J. Simpson, H. Heumann, S. Schmidt, A. J. Simpson. Development and Application of a Low-Volume Flow System for Solution-State in Vivo NMR. Analytical Chemistry, 2018 (90), 7912-7921.

D. Megson, T. A. Brown, G. O’Sullivan, M. Robson, X. Ortiz Almirall, P. J. Worsfold, S. Comber, M. C. Lohan, E. J. Reiner. Changes to polychlorinated biphenyl (PCB) signatures and enantiomer fractions across different tissue types in Guillemots. Marine Pollution Bulletin, 2018 (131), 174-179.

D. T. Bowman, K. J. Jobst, X. Ortiz Almirall, E. J. Reiner, L. A. Warren, B. E. McCarry, G. F. Slater. Improved coverage of naphthenic acid fraction compounds by comprehensive two-dimensional gas chromatography coupled with high resolution mass spectrometry, 2018 (1536), 88-95.

X. Ortiz Almirall, E. Korenkova, K. J. Jobst, K. A. MacPherson, E. J. Reiner. A high throughput targeted and non-targeted method for the analysis of microcystins and anatoxin-A using on-line solid phase extraction coupled to liquid chromatography–quadrupole time-of-flight high resolution mass spectrometry. Analytical and Bioanalytical Chemistry, 2017 (409), 4959-4969.

A. Ballesteros-Gómez, J. Ballesteros, X. Ortiz Almirall, W. Jonker, R. Helmus, K. J. Jobst, J. R. Parsons, E. J. Reiner. Identification of Novel Brominated Compounds in Flame Retarded Plastics Containing TBBPA by Combining Isotope Pattern and Mass Defect Cluster Analysis. Environmental Science and Technology, 2017 (51), 1518-1526.

R. Süring, X. Ortiz Almirall, Miren Pena-Abaurrea, K. J. Jobst, M. Freese, J. D. Pohlmann, L. Marohn, R. Ebinghaus, S. Backus, R. Hanel, E. J. Reiner. Evidence for High Concentrations and Maternal Transfer of Substituted Diphenylamines in European Eels Analyzed by Two- Dimensional Gas Chromatography–Time-of-Flight Mass Spectrometry and Gas Chromatography–Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Environmental Science and Technology, 2016 (50), 12678-12685.

D. Megson, X. Ortiz Almirall, K. J. Jobst, E. J. Reiner, M. F. A. Mulder, J. C. Balouet. A comparison of fresh and used aircraft oil for the identification of toxic substances linked to aerotoxic syndrome. Chemosphere, 2016 (158), 116-123.

D. Megson, M. Pena-Abaurrea, X, Ortiz Almirall. Non-targeted methods for identifying new and emerging persistent organic pollutants of environmental concern. Royal Society of Chemistry Bulletin, 2015 (7), 19-22.

X. Ortiz, K. J. Jobst, E. J. Reiner, S. M. Backus, K. M. Peru, D. W. McMartin, G. O’Sullivan, V. Y. Taguchi, J. H. Headley. Characterization of Naphthenic Acids by Gas Chromatography-Fourier Transform Ion Cyclotron Resonance Mass Spectrometry. Anal. Chemistry, 2014 (86), 7666-7673.

X. Ortiz Almirall, L. Carabellido, R. Martí, X. Tomás, J. Díaz-Ferrero. Elimination of persistent organic pollutants from fish oil with solid adsorbents. Chemosphere, 2011 (82), 1301-1307.

X. Ortiz Almirall, P. Guerra, J. Díaz-Ferrero, E. Eljarrat, D. Barceló. Diastereoisomer- and enantiomer-specific determination of hexabromocyclododecane in fish oil for food and feed. Chemosphere, 2011 (82), 739-744.

X. Ortiz Almirall, R. Martí, M. J. Montaña, M. Gasser, L. Margarit, F. Broto, J. Díaz-Ferrero. Fractionation of persistent organic pollutants in fish oil by high-performance líquid chromatography on a 2-(1-pyrenyl) ethyl silica column. Analytical and Bioanalytical Chemistry, 2010 (2), 985-994.

M. Martí, X. Ortiz Almirall, M. Gasser, R. Martí, M. J. Montaña, J. Díaz-Ferrero. Persistent orgànic pollutants (PCDD/Fs, dioxin-like PCBs, marker PCBs, and PBDEs) in health supplements on the Spanish market. Chemosphere, 2010 (78), 1256-1262.

X. Ortiz, M. Gasser, R. Martí, M.J. Montaña, L. Margarit, F. Broto, J. Díaz-Ferrero. Fractionation of persistent organic pollutants in fish oil by high performance liquid chromatography equipped with a 2-(1-pyrenyl) ethyl silica column. Organohalogen Compounds, 2008 (70), 2416-2419.

M. Martí, X. Ortiz Almirall, M. J. Montaña, M. Gasser, J. Díaz-Ferrero. Determination of POPs(PCDD/Fs, dioxin-like PCBs, marker PCBs, PBDEs and OCPs) in health supplements. Organohalogen Compounds, 2008 (70), 1837-1840.

X. Ortiz Almirall, M. Pena-Abaurrea, K. J. Jobst, E. J. Reiner. Nontargeted Analysis of Persistent Organic Pollutants by Mass Spectrometry and GC×GC. Comprehensive Analytical Chemistry, Chapter 14, 2016 (71), 405.431. Ed. S. Pérez, P. Eichhorn, D. Barceló. ISBN:978-0-444-63572-3.

X. Ortiz Almirall, S. Touriño Eirin, X. Álvarez Micó, O. Durany Turk, J. Segura de Yebra, J. Mercadé Roca. Extract from microalgae comprising fucoxanthin, fucoxanthinol and fatty acids, process for its production and applications thereof. WO 2015/136123 A1. International filing date: 16 March 2015.


Grupo de investigación

Grupo de Química Analítica y Aplicada