1. Mario I. Sanhueza, Rosario del P. Castillo*, M.F. Meléndrez, Carlos von Plessing, JoannaTereszczuk, Germán Osorio, Carlos Peña-Farfal, Marcos Fernández, José Y.Neira. Confocal laser scanning microscopy as a novel tool of hyperspectral imaging for the localization and quantification of fluorescent active principles in pharmaceutical solid dosage forms. Microchemical Journal, 2021 (168), 106479.
  2. Troncoso-Ortega, E.; Castillo, R.d.P.; Reyes-Contreras, P.; Castaño-Rivera, P.; Teixeira Mendonça, R.; Schiappacasse, N.; Parra, C. Effects on Lignin Redistribution in Eucalyptus globulus Fibres Pre-Treated by Steam Explosion: A Microscale Study to Cellulose Accessibility. Biomolecules 2021, 11, 507.
  3. Sanhueza, MI, Meléndrez, MF, von Plessing, C, Neira José, Y. Freer J, Castillo R del P*. Raman microimaging as an analytical technique for simultaneous quantification and localization of active principles in pharmaceutical solid dosage forms. J Raman Spectrosc. 2020; 51: 649– 659.
  4. César Pino-Torres, Santiago Maspoch, Rosario Castillo-Felices, Mónica Pérez-Rivera, Mario Aranda-Bustos, Carlos Peña-Farfal*. Evaluation of NIR and Raman spectroscopies for the quality analytical control of a solid pharmaceutical formulation with three active ingredients. Microchemical Journal, 2020, 154,104576.
  5. Angelo Beratto-Ramos, Cristian Agurto-Muñoz, Juan Pablo Vargas-Montalba, Rosario del P. Castillo*. Fourier-transform infrared imaging and multivariate analysis for direct identification of principal polysaccharides in brown seaweeds. Carbohydrate Polymers, 2020, 115561,
  6. Juan A. Araya*, Renato L. Carneiro, Juanita Freer, José Y. Neira, Rosario del P. Castillo. Fourier transform infrared imaging and quantitative analysis of pre-treated wood fibers: A comparison between partial least squares and multivariate curve resolution with alternating least squares methods in a case study. Chemometrics and Intelligent Laboratory Systems. 2019, 195: 103890,
  7. Felipe Aravena-Sanhueza, Mónica Pérez-Rivera, Rosario Castillo-Felices, Rodolfo Mundaca-Uribe, Mario Aranda Bustos and Carlos Peña Farfal*. Determination of antioxidant capacity (ORAC) of Greigia sphacelata and correlation with voltammetric methods. 2020. Journal of the Chilean Chemical Society 65(3):4925-4928.
  8. Ángela Álvarez, Jorge Yáñez*, Yamil Neira, Rosario Castillo-Felices, Patricio Hinrichsen. Simple distinction of grapevine (Vitis vinifera L.) genotypes by direct ATR-FTIR. Food Chemistry, 2020: 328, 127164.
  9. Toro, C*.; Torres, S.; Parra, V.; Fuentes, R.; Castillo, R.; Díaz, W.; Reyes, G.; Balladares, E.; Parra, R. On the Detection of Spectral Emissions of Iron Oxides in Combustion Experiments of Pyrite Concentrates. Sensors 2020, 20, 1284.
  10. Jonnathan Alvarez,Marizu Velasquez, Ashwin Kumar Myakalwar, Claudio Sandoval, Rodrigo Fuentes, Rosario Castillo, Daniel Sbarbaro and Jorge Yañez*. Determination of copper-based mineral species by laser induced breakdown spectroscopy and chemometric methods. Journal of Analytical Atomic Spectrometry, 2019(34): 2459-2468. DOI: 10.1039/c9ja00271e.
  11. Mendez, Paola, Christian Nuñez, Jaime  Cabrera-Pardo , Cristian Paz, Juan Manuel Barraza, Rosario Castillo and Carlos Peña-Farfal*. Adsorption ability of activated carbon obtained from sub-bituminous coal (lebu, chile) to capture trimethylamine. J. Chil. Chem. Soc. 2019, vol.64, n.3, pp.4582-4585. Issn 0717-9707.  Http://
  12. Valentina Manzo, Jairón Goya-Pacheco, Daniel Arismendi, Mercedes Becerra-Herrera, Alver Castillo-Aguirre, Rosario Castillo-Felices, Milton Rosero-Moreano, Eduardo Carasek, Pablo Richter*. Cork sheet as a sorptive phase to extract hormones from water by rotating-disk sorptive extraction (RDSE). Analytica Chimica Acta. 2019, 1087: 1-10. DOI: 10.1016/j.aca.2019.08.069
  13. Medina González, G*, Castillo, R d P, Neira, JY.  Multivariate calibration for the improvement of the quantification of cadmium in the presence of potassium as interferent by total reflection X‐ray fluorescence. X‐Ray Spectrometry. 2019; 48: 700– 707.
  14. Camila Y. Bastidas, Carlos von Plessing, José Troncoso, Mario I. Sanhueza, José Y. Neira, Rosario del P. Castillo*. Analytical strategies based on near infrared spectroscopy and multivariate calibration for rapid quantification of florfenicol at low-concentrations in medicated-feed pellets. Microchemical Journal, 2019, 147: 1068-1074.
  15. Naysa Díaz; Mónica Pérez-Rivera; Rosario Castillo; Rodolfo Mundaca; Felipe Aravena; Mario Aranda; Carlos Peña-Farfal*. Effect of chemical and physical variables in the photo-electrochemical removal of estriol (E3) and 17--ethinylestradiol (EE2) in aqueous solution. Journal of the Chilean Chemical Society 2018, 63(4): 4250-4256. 
  16. Angelo Alonzo Beratto Ramos, Rosario del Pilar Castillo, Nicolás A Troncoso, Andrés Agurto, Cristian Agurto*. Selection Criteria for high-value biomass: Seasonal and Morphological Variation of Polyphenolic Content and Antioxidant Capacity in Two Brown Macroalgae. Journal of Applied Phycology. (2018).
  17. Mellado CFigueroa TBáez RCastillo RMelendrez MSchulz BFernández K*. Development of Graphene Oxide Composite Aerogel with Proanthocyanidins with Hemostatic Properties as a Delivery System. ACS Appl Mater Interfaces. 2018, 7;10(9):7717-7729. DOI: 10.1021/acsami.7b16084.
  18. Camila Y. Bastidas, Carlos von Plessing, José Troncoso, Rosario del P. Castillo*. Evaluation of the microscopic distribution of florfenicol in feed pellets for salmon by Fourier Transform infrared imaging and multivariate analysis. Journal of Pharmaceutical and Biomedical Analysis 152 (2018) 257–263. doi: 10.1016/j.jpba.2018.02.002.
  19. Noemí Cruz, Cecillia A. Bustos*, María Graciela Aguayo, Alain Cloutier, Rosario Castillo. Impact of the Chemical Composition of Pinus radiata Wood on its Physical and Mechanical Properties Following Thermo-Hygromechanical Densification.  BioResources 13(2), 2018. DOI: 10.15376/biores.13.2.2268-2282.
  20. Angelo Beratto, Cristian Agurto, Juanita Freer, Nicolás Troncoso, Andrés Agurto, Carlos Peña-Farfal and Rosario del P. Castillo*.  Chemical characterization and determination of the antioxidant capacity of two brown algae with respect to sampling season and morphological structures using infrared spectroscopy and multivariate analyses. Applied Spectroscopy. 2017, 71(10):2263-2277. DOI: 10.1177/0003702817715654
  21. Juan A. Araya*, Renato L. Carneiro, Cristian Arévalo, Juanita Freer, Rosario del P. Castillo. Single pixel quantification strategies using middle infrared hyperspectral imaging of lignocellulosic fibers and MCR-ALS analysis.  Microchemical Journal, 2017, 134:164-172.
  22. Cristian Arévalo; Juanita Freer; Pamela A. Naulin; Nelson Barrera; Eduardo Troncoso; Juan Araya; Carlos Peña-Farfal; Rosario del P. Castillo*.  Study of the ultrastructure of Eucalyptus globulus wood substrates subjected to auto-hydrolysis and diluted acid hydrolysis pre-treatments and its influence on enzymatic hydrolysis. Bioenergy Research (2017), 10(3): 714-727. DOI:10.1007/s12155-017-9833-8.
  23. Eduardo Troncoso, Rosario Castillo, Roberto Valenzuela, Pablo Reyes, Juanita Freer, Marcela Norambuena, Jaime Rodriguez, Carolina Parra*. Chemical And Microstructural Changes In Eucalyptus globulus Fibers Subjected To Four Different Pretreatments And Their Influence On The Enzymatic Hydrolysis. Journal of Chilean Chemical Society (2017). 62(2): 3442-3446.
  24. Soraya Andrea Bravo Muñoz*, Ariana Bertín Aileen Turner Francisco Sepúlveda, Paz Jopia, María José Parra, Rosario Castillo and Rodrigo Hasbún. Differences in DNA methylation, DNA structure and embryogenesis-related gene expression between embryogenic and non embryogenic lines of Pinus radiata D. don.  Plant Cell, Tissue and Organ Culture, 2017, 130:521–529.
  25. R. Mundaca-Uribe; D. Valencia-Muñoz; R.  Castillo Felices; J. N. Hinojosa; M. A. Bustos; C. Peña-Farfal*.Bienzymatic Biosensor for Malic Acid Based on Malate Dehydrogenase and Transaminase Immobilized onto a Glassy Carbon Powder/Carbon Nanotubes/Nad+ Composite Electrode. Electroanalysis 2017 (29):238-243.
  26. Soraya Bravo*; María José Parra; Rosario Castillo; Francisco Sepúlveda; Aileen Turner; Ariana Bertín; Germán Osorio; Joanna Tereszczuk; Carola Bruna; Rodrigo Hasbún. Reversible in vivo cellular changes occur during desiccation and recovery: Desiccation tolerance of the resurrection filmy fern Hymenophyllum dentatum Cav. Gayana Botánica, 2016. 73( 2): 402-413.
  27. Paola Méndez A, Camila Rivera A , Cesar Pino A , Rodolfo Mundaca B , Rosario Castillo B , José Neira B , Carlos Peña-Farfal. Chemical Characterization Of Sub-Bituminous Coal From The Arauco Province – Chile.  J. Chil. Chem. Soc.(2016), 61(1): 2805-2808.
  28. Mónica  La Torre, Rodrigo Vidal, Elizabeth González , Rosario Castillo, Carlos Peña-Farfal, Leonardo Bennunc and José Y. Neira*. Analytical testing of the interference standard method (IFS) for metals in wines by inductively coupled plasma mass spectrometry. J. Chil. Chem. Soc., 2015, 60(3): 3083-3087.
  29. Rosario del P. Castillo*, Juan Araya, Eduardo Troncoso, Silenne Vinet, Juanita Freer. Fourier transform infrared imaging and microscopy studies of Pinus radiata pulps regarding the simultaneous saccharification and fermentation process. Analytica Chimica Acta, 2015, 866: 10-20
  30. Rosario del P. Castillo*, Carolina Parra, Eduardo Troncoso, Heriberto Franco, Samuel Peña, And Juanita Freer. NIR Spectroscopy applied to the characterization and selection of pre-treated materials from multiple lignocellulosic resources for bioethanol production. Journal of Chilean Chemical Society, 2014, 59(1): 2347-2352.
  31. Rosario del P. Castillo*, Jaime Baeza, Joselyn Rubilar, Álvaro Rivera, Juanita Freer. Infrared Spectroscopy as Alternative to Wet Chemical Analysis to Characterize Eucalyptus globulus Pulps and Predict Their Ethanol Yield for a Simultaneous Saccharification and Fermentation Process.  Applied Biochemistry and Biotechnology. 2012,  168: 43-48.
  32. Jorge Yañez*, María Paz Farías, Valeria Zúñiga, César Soto, David Contreras, Eduardo Pereira, Héctor D. Mansilla, Rosario Castillo, Pedro Sáez. Differentiation of two main ammunition brands in Chile by Regularized Discriminant Analysis (RDA) of metals in gunshot residues. Microchemical Journal, 2012, 101:43-48.
  33. María Graciela Aguayo, Licarayen Quintupil, Rosario Castillo, Jaime Baeza, Juanita Freer, Regis T. Mendonca. Determination of differences in anatomical and chemical characteristics of tension and opposite wood of 8-year old Eucalyptus globulus. Maderas. Ciencia y Tecnología 12(3), 241-251 (2010).
  34. Rosario del P. Castillo*, David Contreras, Jaime Baeza, Cristian Agurto and Juanita Freer. Classification of genotypes of Eucalyptus globulus under cold conditions using their free amino acids content on leaves and regularized discriminant analysis (RDA). Journal of the Chilean Chemical Society  (2010), 55(1), 11-18
  35. Castillo, R. del P*, Contreras, D., Otto, M., Baeza, J. y J. Freer. Foliar damage assessment and selection of cold resistant genotypes using near infrared spectra of Eucalyptus globulus Leaves. Journal of Near Infrared Spectroscopy (2009),  17, 223-231
  36. Rosario Castillo, David Contreras*, Juanita Freer*, José Ruiz, Sofía Valenzuela. 2008. Supervised pattern recognition techniques for classification of Eucalyptus species from leaves NIR spectra.  Journal of the Chilean Chemical Society  53(4), 1709-1713 (2008).
  37. Rosario Castillo*, Matthias Otto, Juanita Freer, Sofía Valenzuela. Multivariate strategies for classification of Eucalyptus globulus genotypes using carbohydrates content and NIR spectra for evaluation of their cold resistance. Journal of Chemometrics 2008, 22(3-4): 268-280,.
  38. J. Guillermo Contreras*, Márcia M.C. Ferreira, Marcela Hurtado, Lorena Gerli, Rosario Castillo. Theoretical and chemometric study of substituted oxazines. Journal of the Chilean Chemical Society 2005, 3, 50-54