All Stories

  1. The role of the cation and anion in aqueous liquid chromatography with sodium dodecyl sulphate and imidazolium-based ionic liquids as mobile phase reagents

    Article • Analytica Chimica Acta, August 2024, Elsevier

    Maria Jose Ruiz-Angel

  2. Chromatographic behavior of polar compounds in the transition between reversed-phase and submicellar/micellar liquid chromatography

    Article • Microchemical Journal, October 2023, Elsevier

    Maria Jose Ruiz-Angel

  3. Aqueous liquid chromatography with mobile phases of sodium dodecyl sulphate and ionic liquid

    Article • Journal of Chromatography A, January 2023, Elsevier

    Maria Jose Ruiz-Angel

  4. Interactions of basic compounds with ionic liquids used as oils in microemulsion liquid chromatography

    Article • Journal of Chromatography A, July 2022, Elsevier

    Maria Jose Ruiz-Angel

  5. Comparison of the Fitting Performance of Retention Models and Elution Strength Behaviour in Hydrophilic-Interaction and Reversed-Phase Liquid Chromatography

    Article • Separations, April 2021, MDPI AG

    Maria Jose Ruiz-Angel

  6. Analysis of tricyclic antidepressants in pharmaceuticals by microemulsion liquid chromatography

    Article • Microchemical Journal, January 2021, Elsevier

    Maria Jose Ruiz-Angel

  7. Performance and modelling of retention in microemulsion liquid chromatography

    Article • Journal of Chromatography A, December 2020, Elsevier

    Maria Jose Ruiz-Angel

  8. Extraction of β-blockers from urine with a polymeric monolith modified with 1-allyl-3-methylimidazolium chloride in spin column format

    Article • Talanta, July 2020, Elsevier

    Maria Jose Ruiz-Angel

  9. Hydrophilic Liquid Chromatography versus Reversed-Phase Liquid Chromatography in the Absence and the Presence of 1-Hexyl-3-methylimidazolium Chloride for the Analysis of Basic Compounds

    Article • Separations, May 2020, MDPI AG

    Maria Jose Ruiz-Angel

  10. Comparison of surfactant-mediated liquid chromatographic modes with sodium dodecyl sulphate for the analysis of basic drugs

    Article • Analytical Methods, January 2020, Royal Society of Chemistry

    Maria Jose Ruiz-Angel

  11. Effect of buffer nature and concentration on the chromatographic performance of basic compounds in the absence and presence of 1-hexyl-3-methylimidazolium chloride

    Article • Journal of Chromatography A, September 2019, Elsevier

    Maria Jose Ruiz-Angel

  12. Protocol to compare column performance applied to hydrophilic interaction liquid chromatography

    Article • Microchemical Journal, September 2019, Elsevier

    Maria Jose Ruiz-Angel

  13. Modulation of retention and selectivity in oil-in-water microemulsion liquid chromatography: A review

    Article • Journal of Chromatography A, May 2019, Elsevier

    Maria Jose Ruiz-Angel

  14. Oil-In-Water Microemulsion Liquid Chromatography

    Article • Separation and Purification Reviews, November 2018, Taylor & Francis

    Nikita patel, Maria Jose Ruiz-Angel

  15. Extent of the influence of phosphate buffer and ionic liquids on the reduction of the silanol effect in a C18 stationary phase

    Article • Journal of Chromatography A, July 2018, Elsevier

    Maria Jose Ruiz-Angel

  16. Recent advances on ionic liquid uses in separation techniques

    Article • Journal of Chromatography A, July 2018, Elsevier

    Maria Jose Ruiz-Angel

  17. Suitability of 1-hexyl-3-methylimidazolium ionic liquids for the analysis of pharmaceutical formulations containing tricyclic antidepressants

    Article • Journal of Chromatography A, July 2018, Elsevier

    Maria Jose Ruiz-Angel

  18. Search of non-ionic surfactants suitable for micellar liquid chromatography

    Article • Fresenius Journal of Analytical Chemistry, June 2018, Springer Science + Business Media

    Maria Jose Ruiz-Angel

  19. Micellar Liquid Chromatography ☆

    Article • January 2018, Elsevier

    Maria Jose Ruiz-Angel

  20. Analysis of basic drugs by liquid chromatography with environmentally friendly mobile phases in pharmaceutical formulations

    Article • Microchemical Journal, September 2017, Elsevier

    Maria Jose Ruiz-Angel

  21. Performance of amines as silanol suppressors in reversed-phase liquid chromatography

    Article • Journal of Chromatography A, September 2016, Elsevier

    Maria Jose Ruiz-Angel

  22. LC of high to moderately polar basic drugs in urine with water and detergent, and direct injection

    Article • Bioanalysis, June 2016, Future Science

    Maria Jose Ruiz-Angel

  23. Effect of sodium dodecyl sulphate and Brij-35 on the analysis of sulphonamides in physiological samples using direct injection and acetonitrile gradients

    Article • Analytical Methods, January 2016, Royal Society of Chemistry

    Maria Jose Ruiz-Angel

  24. Micellar Liquid Chromatography: Fundamentals

    Article • November 2015, Wiley

    Maria Jose Ruiz-Angel

  25. Micellar Liquid Chromatography: Method Development and Applications

    Article • November 2015, Wiley

    Maria Jose Ruiz-Angel

  26. On the use of ionic liquids as mobile phase additives in high-performance liquid chromatography. A review

    Article • Analytica Chimica Acta, July 2015, Elsevier

    Maria Jose Ruiz-Angel

  27. Gaining insight in the behaviour of imidazolium-based ionic liquids as additives in reversed-phase liquid chromatography for the analysis of basic compounds

    Article • Journal of Chromatography A, February 2015, Elsevier

    Maria Jose Ruiz-Angel

  28. Adsorption of the anionic surfactant sodium dodecyl sulfate on a C18 column under micellar and high submicellar conditions in reversed‐phase liquid chromatography

    Article • Journal of Separation Science, January 2015, Wiley

    Maria Jose Ruiz-Angel

  29. Reversed-phase liquid chromatography with mixed micellar mobile phases of Brij-35 and sodium dodecyl sulphate: a method for the analysis of basic compounds

    Article • Green Chemistry, January 2015, Royal Society of Chemistry

    Maria Jose Ruiz-Angel

  30. Liquid Chromatography/Ion Pair☆

    Article • January 2015, Elsevier

    Maria Jose Ruiz-Angel

  31. Are analysts doing method validation in liquid chromatography?

    Article • Journal of Chromatography A, August 2014, Elsevier

    Maria Jose Ruiz-Angel

  32. Implementation of gradients of organic solvent in micellar liquid chromatography using DryLab®: Separation of basic compounds in urine samples

    Article • Journal of Chromatography A, May 2014, Elsevier

    Maria Jose Ruiz-Angel

  33. Performance of different C18 columns in reversed-phase liquid chromatography with hydro-organic and micellar-organic mobile phases

    Article • Journal of Chromatography A, May 2014, Elsevier

    Maria Jose Ruiz-Angel

  34. Half-width plots, a simple tool to predict peak shape, reveal column kinetics and characterise chromatographic columns in liquid chromatography: State of the art and new results

    Article • Journal of Chromatography A, November 2013, Elsevier

    Maria Jose Ruiz-Angel

  35. High Submicellar Liquid Chromatography

    Article • Separation and Purification Reviews, July 2013, Taylor & Francis

    Maria Jose Ruiz-Angel

  36. Comparison of two serially coupled column systems and optimization software in isocratic liquid chromatography for resolving complex mixtures

    Article • Journal of Chromatography A, March 2013, Elsevier

    Maria Jose Ruiz-Angel

  37. Chromatographic Efficiency in Micellar Liquid Chromatography: Should it Be Still a Topic of Concern?

    Article • Separation and Purification Reviews, January 2013, Taylor & Francis

    Maria Jose Ruiz-Angel

  38. 1-Hexyl-3-methyl imidazolium tetrafluoroborate: An efficient column enhancer for the separation of basic drugs by reversed-phase liquid chromatography

    Article • Journal of Chromatography A, October 2012, Elsevier

    Maria Jose Ruiz-Angel

  39. Micellar Liquid Chromatography: Recent Advances and Applications

    Article • Chromatography Research International, June 2012, Hindawi Publishing Corporation

    Maria Jose Ruiz-Angel

  40. Reversed‐phase liquid chromatography without organic solvent for determination of tricyclic antidepressants

    Article • Journal of Separation Science, June 2012, Wiley

    Maria Jose Ruiz-Angel

  41. Silanol suppressing potency of alkyl-imidazolium ionic liquids on C18 stationary phases

    Article • Journal of Chromatography A, April 2012, Elsevier

    Maria Jose Ruiz-Angel

  42. Hydrophobicity of ionisable compounds studied by countercurrent chromatography

    Article • Journal of Chromatography A, September 2011, Elsevier

    Maria Jose Ruiz-Angel

  43. Correction of the deviations in the retention times with Chromolith columns associated to the flow rate: Implications in the modelling of the retention behaviour

    Article • Journal of Separation Science, February 2011, Wiley

    Maria Jose Ruiz-Angel

  44. Comparison of the performance of non‐ionic and anionic surfactants as mobile phase additives in the RPLC analysis of basic drugs

    Article • Journal of Separation Science, February 2011, Wiley

    Maria Jose Ruiz-Angel

  45. The role of the dual nature of ionic liquids in the reversed-phase liquid chromatographic separation of basic drugs

    Article • Journal of Chromatography A, January 2011, Elsevier

    Maria Jose Ruiz-Angel

  46. Effect of short-chain alcohols on surfactant-mediated reversed-phase liquid chromatographic systems

    Article • Journal of Chromatography A, November 2010, Elsevier

    Maria Jose Ruiz-Angel

  47. Ionic Liquid Based Headspace Solid-Phase Microextraction-Gas Chromatography for the Determination of Volatile Polar Organic Compounds

    Article • Separation Science and Technology, November 2010, Taylor & Francis

    Maria Jose Ruiz-Angel

  48. Performance of short-chain alcohols versus acetonitrile in the surfactant-mediated reversed-phase liquid chromatographic separation of β-blockers

    Article • Journal of Chromatography A, November 2010, Elsevier

    Maria Jose Ruiz-Angel

  49. Origin and correction of the deviations in retention times at increasing flow rate with Chromolith columns

    Article • Journal of Chromatography A, August 2010, Elsevier

    Maria Jose Ruiz-Angel

  50. Peak half-width plots to study the effect of organic solvents on the peak performance of basic drugs in micellar liquid chromatography

    Article • Journal of Chromatography A, March 2010, Elsevier

    Maria Jose Ruiz-Angel

  51. Micellar liquid chromatography in doping control

    Article • Bioanalysis, October 2009, Future Science

    Maria Jose Ruiz-Angel

  52. Interpretive optimisation of organic solvent content and flow‐rate in the separation of β‐blockers with a Chromolith RP‐18e column

    Article • Journal of Separation Science, August 2009, Wiley

    Maria Jose Ruiz-Angel

  53. Performance of a Chromolith RP‐18e column for the screening of β‐blockers

    Article • Journal of Separation Science, August 2009, Wiley

    Maria Jose Ruiz-Angel

  54. Countercurrent chromatography: People and applications

    Article • Journal of Chromatography A, May 2009, Elsevier

    Maria Jose Ruiz-Angel

  55. Submicellar and micellar reversed-phase liquid chromatographic modes applied to the separation of β-blockers

    Article • Journal of Chromatography A, April 2009, Elsevier

    Maria Jose Ruiz-Angel

  56. Retention mechanisms in micellar liquid chromatography

    Article • Journal of Chromatography A, March 2009, Elsevier

    Maria Jose Ruiz-Angel

  57. New Insights and Recent Developments in Micellar Liquid Chromatography

    Article • Separation and Purification Reviews, January 2009, Taylor & Francis

    Maria Jose Ruiz-Angel

  58. Retention Mechanisms for Basic Drugs in the Submicellar and Micellar Reversed-Phase Liquid Chromatographic Modes

    Article • Analytical Chemistry, November 2008, American Chemical Society (ACS)

    Maria Jose Ruiz-Angel

  59. Reversed-phase liquid chromatography analysis of alkyl-imidazolium ionic liquids

    Article • Journal of Chromatography A, May 2008, Elsevier

    Maria Jose Ruiz-Angel

  60. Ionic liquids in separation techniques

    Article • Journal of Chromatography A, March 2008, Elsevier

    Maria Jose Ruiz-Angel

  61. Micellar versus hydro-organic reversed-phase liquid chromatography: A solvation parameter-based perspective

    Article • Journal of Chromatography A, February 2008, Elsevier

    Maria Jose Ruiz-Angel

  62. Comparative study of solvation parameter models accounting the effects of mobile phase composition in reversed-phase liquid chromatography

    Article • Journal of Chromatography A, September 2007, Elsevier

    Maria Jose Ruiz-Angel

  63. Prediction of peak shape in hydro-organic and micellar-organic liquid chromatography as a function of mobile phase composition

    Article • Journal of Chromatography A, September 2007, Elsevier

    Maria Jose Ruiz-Angel

  64. Solvent systems for countercurrent chromatography: An aqueous two phase liquid system based on a room temperature ionic liquid

    Article • Journal of Chromatography A, June 2007, Elsevier

    Maria Jose Ruiz-Angel

  65. COUNTERCURRENT CHROMATOGRAPHY | Extrusion–Elution

    Article • January 2007, Elsevier

    Maria Jose Ruiz-Angel

  66. Analytical Techniques for Furosemide Determination

    Article • Separation and Purification Reviews, July 2006, Taylor & Francis

    Maria Jose Ruiz-Angel

  67. Ionic liquids versus triethylamine as mobile phase additives in the analysis of β-blockers

    Article • Journal of Chromatography A, June 2006, Elsevier

    Maria Jose Ruiz-Angel

  68. Reversed phase liquid chromatography of alkyl-imidazolium ionic liquids

    Article • Journal of Chromatography A, April 2006, Elsevier

    Maria Jose Ruiz-Angel

  69. Alkane effect in the Arizona liquid systems used in countercurrent chromatography

    Article • Fresenius Journal of Analytical Chemistry, September 2005, Springer Science + Business Media

    Maria Jose Ruiz-Angel

  70. Nonmolecular Solvents in Separation Methods:  Dual Nature of Room Temperature Ionic Liquids

    Article • Analytical Chemistry, May 2005, American Chemical Society (ACS)

    Maria Jose Ruiz-Angel

  71. Effect of ionization and the nature of the mobile phase in quantitative structure-retention relationship studies

    Article • Journal of Chromatography A, January 2005, Elsevier

    Maria Jose Ruiz-Angel

  72. Micellar versus hydro-organic mobile phases for retention-hydrophobicity relationship studies with ionizable diuretics and an anionic surfactant

    Article • Journal of Chromatography A, March 2004, Elsevier

    Maria Jose Ruiz-Angel

  73. Hydrophobic and cation exchange mechanisms in the retention of basic compounds in a polymeric column

    Article • Journal of Chromatography A, February 2004, Elsevier

    Maria Jose Ruiz-Angel

  74. Effects of pH and the presence of micelles on the resolution of diuretics by reversed-phase liquid chromatography

    Article • Journal of Chromatography A, January 2004, Elsevier

    Maria Jose Ruiz-Angel

  75. Elution−Extrusion Countercurrent Chromatography. Use of the Liquid Nature of the Stationary Phase To Extend the Hydrophobicity Window

    Article • Analytical Chemistry, September 2003, American Chemical Society (ACS)

    Maria Jose Ruiz-Angel

  76. Optimised procedures for the reversed-phase liquid chromatographic analysis of formulations containing tricyclic antidepressants

    Article • Journal of Pharmaceutical and Biomedical Analysis, April 2003, Elsevier

    Maria Jose Ruiz-Angel

  77. Identification of Leguminosae gums and evaluation of carob-guar mixtures by capillary zone electrophoresis of protein extracts

    Article • Electrophoresis, June 2002, Wiley

    Maria Jose Ruiz-Angel

  78. Micellar-organic versus aqueous-organic mobile phases for the screening of β-blockers

    Article • Analytica Chimica Acta, March 2002, Elsevier

    Maria Jose Ruiz-Angel

  79. Control of propranolol intake by direct chromatographic detection of α-naphthoxylactic acid in urine

    Article • Journal of Chromatography B, February 2002, Elsevier

    Maria Jose Ruiz-Angel

  80. Micellar liquid chromatography: suitable technique for screening analysis

    Article • Journal of Chromatography A, February 2002, Elsevier

    Maria Jose Ruiz-Angel

  81. Determination of furosemide in urine samples by direct injection in a micellar liquid chromatographic system

    Article • The Analyst, December 2001, Royal Society of Chemistry

    Maria Jose Ruiz-Angel