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den Uijl, M. J., Bagdonaite, I., Schoenmakers, P. J., Pirok, B. W. J., & van Bommel, M. R. (2023). Incorporating a liquid-core-waveguide cell in recycling liquid chromatography for detailed studies of photodegradation reactions. Journal of Chromatography A, 1688, [463723]. https://doi.org/10.1016/j.chroma.2022.463723
2022
Bos, T. S., Boelrijk, J., Molenaar, S. R. A., Veer, B. V. ., Niezen, L. E., van Herwerden, D., Samanipour, S., Stoll, D. R., Forré, P., Ensing, B., Somsen, G. W., & Pirok, B. W. J. (2022). Chemometric Strategies for Fully Automated Interpretive Method Development in Liquid Chromatography. Analytical Chemistry, 94(46), 16060-16068. https://doi.org/10.1021/acs.analchem.2c03160[details]
Brau, T., Pirok, B., Rutan, S., & Stoll, D. (2022). Accuracy of retention model parameters obtained from retention data in liquid chromatography. Journal of Separation Science, 45(17), 3241-3255. https://doi.org/10.1002/jssc.202100911[details]
Brouwer, N., Maciejowska, I., McDonnell, C., Niemelä, M., Pirok, B., Grecea, Ş., Femoni, C., Ortiz-Bustos, J., Byers, W., & Wasser, I. (2022). Creating a common ground for professional development of university chemistry (STEM) lecturers in Europe. Švietimas: politika - vadyba - kokybė, 14(1), 45-57. https://doi.org/10.48127/spvk-epmq/22.14.45[details]
Groeneveld, I., Pirok, B. W. J., Molenaar, S. R. A., Schoenmakers, P. J., & van Bommel, M. R. (2022). The development of a generic analysis method for natural and synthetic dyes by ultra-high-pressure liquid chromatography with photo-diode-array detection and triethylamine as an ion-pairing agent. Journal of Chromatography A, 1673, [463038]. https://doi.org/10.1016/j.chroma.2022.463038[details]
Knol, W. C., Gruendling, T., Schoenmakers, P. J., Pirok, B. W. J., & Peters, R. A. H. (2022). Co-Polymer sequence determination over the molar mass distribution by size-exclusion chromatography combined with pyrolysis - gas chromatography. Journal of Chromatography A, 1670, [462973]. https://doi.org/10.1016/j.chroma.2022.462973[details]
Knol, W. C., Vos, S., Gruendling, T., Pirok, B. W. J., & Peters, R. A. H. (2022). Expansion of the application range of pyrolysis-gas chromatography to copolymer sequence determination: Acrylate copolymers. Journal of analytical and applied pyrolysis, 165, [105578]. https://doi.org/10.1016/j.jaap.2022.105578[details]
Molenaar, S. R. A., Savova, M., Cross, R., Ferguson, P. D., Schoenmakers, P. J., & Pirok, B. W. J. (2022). Improving retention-time prediction in supercritical-fluid chromatography by multivariate modelling. Journal of Chromatography A, 1668, [462909]. https://doi.org/10.1016/j.chroma.2022.462909[details]
Molenaar, S. R. A., van de Put, B., Desport, J. S., Samanipour, S., Peters, R. A. H., & Pirok, B. W. J. (2022). Automated Feature Mining for Two-Dimensional Liquid Chromatography Applied to Polymers Enabled by Mass Remainder Analysis. Analytical Chemistry, 94(14), [5599-5607]. https://doi.org/10.1021/acs.analchem.1c05336[details]
Niezen, L. E., Schoenmakers, P. J., & Pirok, B. W. J. (2022). Critical comparison of background correction algorithms used in chromatography. Analytica Chimica Acta, 1201, [339605]. https://doi.org/10.1016/j.aca.2022.339605[details]
Niezen, L. E., Staal, B. B. P., Lang, C., Philipsen, H. J. A., Pirok, B. W. J., Somsen, G. W., & Schoenmakers, P. J. (2022). Recycling gradient-elution liquid chromatography for the analysis of chemical-composition distributions of polymers. Journal of Chromatography A, 1679, [463386]. https://doi.org/10.1016/j.chroma.2022.463386[details]
Pirok, B. W. J., & Stoll, D. R. (2022). Selecting Separation Modes and Selectivities for Multi-Dimensional LC. In D. Stoll, & P. Carr (Eds.), Multi-Dimensional Liquid Chromatography: Principles, Practice, and Applications (1 ed.). CRC Press.
Pirok, B. W. J., Rutan, S., & Stoll, D. R. (2022). Data Analysis for Multi-Dimensional Liquid Chromatography. In D. Stoll, & P. Carr (Eds.), Multi-Dimensional Liquid Chromatography: Principles, Practice, and Applications CRC Press. https://doi.org/10.1201/9781003090557
Stoll, D. R., Kainz, G., Dahlseid, T. A., Kempen, T. J., Brau, T., & Pirok, B. W. J. (2022). An approach to high throughput measurement of accurate retention data in liquid chromatography. Journal of Chromatography A, 1678, [463350]. https://doi.org/10.1016/j.chroma.2022.463350[details]
den Uijl, M. J., Lokker, A., van Dooren, B., Schoenmakers, P. J., Pirok, B. W. J., & van Bommel, M. R. (2022). Comparing different light-degradation approaches for the degradation of crystal violet and eosin Y. Dyes and Pigments, 197, [109882]. https://doi.org/10.1016/j.dyepig.2021.109882[details]
den Uijl, M. J., Roeland, T., Bos, T. S., Schoenmakers, P. J., van Bommel, M. R., & Pirok, B. W. J. (2022). Assessing the feasibility of stationary-phase-assisted modulation for two-dimensional liquid-chromatography separations. Journal of Chromatography A, 1679, [463388]. https://doi.org/10.1016/j.chroma.2022.463388[details]
den Uijl, M. J., Van Der Wijst, Y. J. H. L., Groeneveld, I., Schoenmakers, P. J., Pirok, B. W. J., & Van Bommel, M. R. (2022). Combining Photodegradation in a Liquid-Core-Waveguide Cell with Multiple-Heart-Cut Two-Dimensional Liquid Chromatography. Analytical Chemistry, 94(31), 11055-11061. https://doi.org/10.1021/acs.analchem.2c01928[details]
van den Hurk, R. S., Abdulhussain, N., van beurden, A., Dekker, M., Hulsbergen, A., Peters, R. A. H., Pirok, B. W. J., & van Asten, A. C. (2022). Characterization and comparison of smokeless powders by on-line two-dimensional liquid chromatography. Journal of Chromatography A, 1672, [463072]. https://doi.org/10.1016/j.chroma.2022.463072[details]
Bos, T. S., Niezen, L. E., den Uijl, M. J., Molenaar, S. R. A., Lege, S., Schoenmakers, P. J., Somsen, G. W., & Pirok, B. W. J. (2021). Reducing the influence of geometry-induced gradient deformation in liquid chromatographic retention modelling. Journal of Chromatography A, 1635, [461714]. https://doi.org/10.1016/j.chroma.2020.461714[details]
Knol, W. C., Pirok, B. W. J., & Peters, R. A. H. (2021). Detection challenges in quantitative polymer analysis by liquid chromatography. Journal of Separation Science, 44(1), 63-87. https://doi.org/10.1002/jssc.202000768[details]
Lazaridi, E., Janssen, H-G., Vincken, J-P., Pirok, B., & Hennebelle, M. (2021). A comprehensive two-dimensional liquid chromatography method for the simultaneous separation of lipid species and their oxidation products. Journal of Chromatography A, 1644, [462106]. https://doi.org/10.1016/j.chroma.2021.462106[details]
Molenaar, S. R. A., Dahlseid, T. A., Leme, G. M., Stoll, D. R., Schoenmakers, P. J., & Pirok, B. W. J. (2021). Peak-tracking algorithm for use in comprehensive two-dimensional liquid chromatography-Application to monoclonal-antibody peptides. Journal of Chromatography A, 1639. https://doi.org/10.1016/j.chroma.2021.461922
Niezen, L. E., Staal, B. B. P., Lang, C., Pirok, B. W. J., & Schoenmakers, P. J. (2021). Thermal modulation to enhance two-dimensional liquid chromatography separations of polymers. Journal of Chromatography A, 1653. https://doi.org/10.1016/j.chroma.2021.462429
Samanipour, S., Choi, P., O'Brien, J. W., Pirok, B. W. J., Reid, M. J., & Thomas, K. V. (2021). From Centroided to Profile Mode: Machine Learning for Prediction of Peak Width in HRMS Data. Analytical Chemistry, 93(49), 16562–16570. https://doi.org/10.1021/acs.analchem.1c03755[details]
den Uijl, M. J., Schoenmakers, P. J., Pirok, B. W. J., & van Bommel, M. R. (2021). Recent applications of retention modelling in liquid chromatography. Journal of Separation Science, 44(1), 88-114. https://doi.org/10.1002/jssc.202000905[details]
den Uijl, M. J., Schoenmakers, P. J., Schulte, G. K., Stoll, D. R., van Bommel, M. R., & Pirok, B. W. J. (2021). Measuring and using scanning-gradient data for use in method optimization for liquid chromatography. Journal of Chromatography A, 1636, [461780]. https://doi.org/10.1016/j.chroma.2020.461780[details]
Aly, A. A., Muller, M., de Villiers, A., Pirok, B. W. J., & Górecki, T. (2020). Parallel gradients in comprehensive multidimensional liquid chromatography enhance utilization of the separation space and the degree of orthogonality when the separation mechanisms are correlated. Journal of Chromatography A, 1628, [461452]. https://doi.org/10.1016/j.chroma.2020.461452[details]
Bos, T. S., Knol, W. C., Molenaar, S. R. A., Niezen, L. E., Schoenmakers, P. J., Somsen, G. W., & Pirok, B. W. J. (2020). Recent applications of chemometrics in one- and two-dimensional chromatography. Journal of Separation Science, 43(9-10), 1678-1727. https://doi.org/10.1002/jssc.202000011[details]
Pirok, B. W. J., & Westerhuis, J. A. (2020). Challenges in Obtaining Relevant Information from One- and Two-Dimensional LC Experiments. Supplement to LCGC North America solutions for seperation scientists, 6(38), 8-14.
van Herwerden, D., Pirok, B. W. J., & Schoenmakers, P. J. (2020). Liquid Chromatography: Applications for the Oil and Gas Industry. In M. N. Dunkle, & W. L. Winniford (Eds.), Analytical Techniques in the Oil and Gas Industry for Environmental Monitoring (pp. 225-258). Wiley. https://doi.org/10.1002/9781119523314.ch5[details]
2019
Brooijmans, T., Okhuijsen, R. A., Oerlemans, G. M. M., Pirok, B. W. J., Schoenmakers, P. J., & Peters, R. A. H. (2019). Heterogeneity analysis of polymeric carboxylic acid functionality by selective derivatization followed by size exclusion chromatography. Analytica Chimica Acta, 1072, 87-94. https://doi.org/10.1016/j.aca.2019.04.051[details]
Groeneveld, G., Pirok, B. W. J., & Schoenmakers, P. J. (2019). Perspectives on the future of multi-dimensional platforms. Faraday Discussions, 218, 72-100. https://doi.org/10.1039/c8fd00233a[details]
Pirok, B. W. J., Abdulhussain, N., Brooijmans, T., Nabuurs, T., de Bont, J., Schellekens, M. A. J., Peters, R. A. H., & Schoenmakers, P. J. (2019). Analysis of charged acrylic particles by on-line comprehensive two-dimensional liquid chromatography and automated data-processing. Analytica Chimica Acta, 1054, 184-192. https://doi.org/10.1016/j.aca.2018.12.059[details]
Pirok, B. W. J., Moro, G., Meekel, N., Berbers, S. V. J., Schoenmakers, P. J., & van Bommel, M. R. (2019). Mapping degradation pathways of natural and synthetic dyes with LC-MS: Influence of solvent on degradation mechanisms. Journal of Cultural Heritage, 38, 29-36. https://doi.org/10.1016/j.culher.2019.01.003[details]
Pirok, B. W. J., Stoll, D. R., & Schoenmakers, P. J. (2019). Recent Developments in Two-Dimensional Liquid Chromatography: Fundamental Improvements for Practical Applications. Analytical Chemistry, 91(1), 240-263. https://doi.org/10.1021/acs.analchem.8b04841[details]
Pirok, B. W. J., den Uijl, M. J., Moro, G., Berbers, S. V. J., Croes, C. J. M., van Bommel, M. R., & Schoenmakers, P. J. (2019). Characterization of Dye Extracts from Historical Cultural-Heritage Objects using State-of-the-Art Comprehensive Two-Dimensional Liquid Chromatography and Mass Spectrometry with Active Modulation and Optimized Shifting Gradients. Analytical Chemistry, 91(4), 3062-3069. https://doi.org/10.1021/acs.analchem.8b05469[details]
Roca, L. S., Schoemaker, S. E., Pirok, B. W. J., Gargano, A. F. G., & Schoenmakers, P. J. (2019). Accurate modelling of the retention behaviour of peptides in gradient-elution hydrophilic interaction liquid chromatography. Journal of Chromatography A, 1614, [460650]. https://doi.org/10.1016/j.chroma.2019.460650[details]
Wouters, B., Pirok, B. W. J., Soulis, D., Garmendia Perticarini, R. C., Fokker, S., van den Hurk, R. S., Skolimowski, M., Peters, R. A. H., & Schoenmakers, P. J. (2019). On-line microfluidic immobilized-enzyme reactors: A new tool for characterizing synthetic polymers. Analytica Chimica Acta, 1053, 62-69. https://doi.org/10.1016/j.aca.2018.12.002[details]
van Schaick, G., Pirok, B. W. J., Haselberg, R., Somsen, G. W., & Gargano, A. F. G. (2019). Computer-aided gradient optimization of hydrophilic interaction liquid chromatographic separations of intact proteins and protein glycoforms. Journal of Chromatography A, 1598, 67-76. https://doi.org/10.1016/j.chroma.2019.03.038[details]
Pirok, B. W. J., Gargano, A. F. G., & Schoenmakers, P. J. (2018). Optimizing separations in online comprehensive two-dimensional liquid chromatography. Journal of Separation Science, 41(1), 68-98. https://doi.org/10.1002/jssc.201700863[details]
Pirok, B. W. J., Molenaar, S. R. A., Roca, L. S., & Schoenmakers, P. J. (2018). Peak-Tracking Algorithm for Use in Automated Interpretive Method-Development Tools in Liquid Chromatography. Analytical Chemistry, 90(23), 14011-14019. https://doi.org/10.1021/acs.analchem.8b03929[details]
van Beek, F. T., Edam, R., Pirok, B. W. J., Genuit, W. J. L., & Schoenmakers, P. J. (2018). Comprehensive two-dimensional liquid chromatography of heavy oil. Journal of Chromatography A, 1564, 110-119. https://doi.org/10.1016/j.chroma.2018.06.001[details]
Pirok, B. W. J., Abdulhussain, N., Aalbers, T., Wouters, B., Peters, R. A. H., & Schoenmakers, P. J. (2017). Nanoparticle Analysis by Online Comprehensive Two-Dimensional Liquid Chromatography combining Hydrodynamic Chromatography and Size-Exclusion Chromatography with Intermediate Sample Transformation. Analytical Chemistry, 89(17), 9167-9174. https://doi.org/10.1021/acs.analchem.7b01906[details]
Pirok, B. W. J., Breuer, P., Hoppe, S. J. M., Chitty, M., Welch, E., Farkas, T., van der Wal, S., Peters, R., & Schoenmakers, P. J. (2017). Size-exclusion chromatography using core-shell particles. Journal of Chromatography A, 1486, 96-102. https://doi.org/10.1016/j.chroma.2016.12.015[details]
Pirok, B. W. J., Molenaar, S. R. A., van Outersterp, R. E., & Schoenmakers, P. J. (2017). Applicability of retention modelling in hydrophilic-interaction liquid chromatography for algorithmic optimization programs with gradient-scanning techniques. Journal of Chromatography A, 1530, 104-111. https://doi.org/10.1016/j.chroma.2017.11.017[details]
Pirok, B. W. J., Knip, J., van Bommel, M. R., & Schoenmakers, P. J. (2016). Characterization of synthetic dyes by comprehensive two-dimensional liquid chromatography combining ion-exchange chromatography and fast ion-pair reversed-phase chromatography. Journal of Chromatography A, 1436, 141-146. https://doi.org/10.1016/j.chroma.2016.01.070[details]
Pirok, B. W. J., Pous-Torres, S., Ortiz-Bolsico, C., Vivó-Truyols, G., & Schoenmakers, P. J. (2016). Program for the interpretive optimization of two-dimensional resolution. Journal of Chromatography A, 1450, 29-37. https://doi.org/10.1016/j.chroma.2016.04.061[details]
den Uijl, M. J., Mai, D. X., Eskildsen, C. E. A., de Voogt, P., Pirok, B. W. J., Schoenmakers, P. J., & van Bommel, M. R. (2020). Mapping degradation pathways of pharmaceuticals in advanced oxidation with liquid chromatography - UV/MS. Poster session presented at SETAC SciCon, .
den Uijl, M. J., Schoenmakers, P. J., Schulte, G. K., Stoll, D. R., van Bommel, M. R., & Pirok, B. W. J. (2020). Measuring and using scanning-gradient data for LC. Poster session presented at CHAINS 2020, .
2019
den Uijl, M. J., Groeneveld, I., Pirok, B. W. J., Ariese, F., Somsen, G. W., Schoenmakers, P. J., & van Bommel, M. R. (2019). Toolbox for studying the chemistry of light induced degradation (TOOCOLD): towards an online degradation system. Poster session presented at HPLC 2019, Milan, Italy.
den Uijl, M. J., Pirok, B. W. J., de Voogt, W. P., Schoenmakers, P. J., & van Bommel, M. R. (2019). Mapping degradation pathways in advanced oxidation processes with two-dimensional liquid chromatography with an online light-degradation system. Poster session presented at SETAC Europe 29th annual meeting, Helsinki, Finland.
2018
Berbers, S., Pirok, B. W. J., Moro, G., Croes, C., Knip, J., Meekel, N., ... Schoenmakers, P. J. (2018). Natural and Synthetic Dye Characterization by Comprehensive Two Dimensional Liquid Chromatography. Poster session presented at Gordon Research Conference on Scientific Methods in Cultural Heritage Research, Barcelona, Spain.
Pirok, B. (speaker) (21-3-2023). Challenges to Achieve Unsupervised Optimization of Heart-cut and Comprehensive Two-dimensional Liquid Chromatography Separations, Pittsburgh Conference 2023, Philadelphia, PA, United States, Philadelphia.
Pirok, B. (speaker) (23-8-2022). Closed-loop automated method development in (2D) liquid chromatography using retention modelling and machine learning, ACS Fall 2022, Chicago.
Pirok, B. (speaker) (21-6-2022). Unsupervised Method Development for Liquid Chromatography, HPLC2022, San Diego, CA, United States, San Diego.
Pirok, B. (speaker) (14-9-2021). Multi-Dimensional Techniques - Theoretical and Practical Rationale for 2D-LC, Instrumentation, Modulation and Method Development, Community for Analytical Measurement Science Conference 2022.
Pirok, B. (speaker) (7-11-2019). Using 2D-LC: from small molecules to large particles, Discussiegroep Scheidingsmethoden voor Polymeren Symposium Herfst 2019, Breda.
Pirok, B. (speaker) (29-10-2019). Opportunities for Robust Application of Two-dimensional Liquid Chromatography, Chromatographic Society Multi-dimensional Chromatography Symposium, Bracknell.
Pirok, B. (speaker) (26-6-2019). Opportunities in Two-dimensional Liquid Chromatography through PARADISE, Agilent University Relations Fair 2019, Waldbronn.
Pirok, B. (speaker) (21-5-2019). 2D-LC: From data analysis to method development, Forum for Analytical Science and Technology, Veldhoven.
Pirok, B. (speaker) (2019). Computer-optimized LC×LC-MS for the Characterization of 17th-century Cultural Heritage Objects, 48th International Symposium on High-Performance-Liquid-Phase Separations and Related Techniques, Milan.
Pirok, B. (speaker) (2019). Peak Tracking for Multi-dimensional Chromatography, 12th Balaton Symposium on High-Performance Separation Methods, Balaton.
Pirok, B. (speaker) (2019). Analysis of Polymeric Particles, 9th International Symposium on the Separation and Characterization of Natural and Synthetic Macromolecules, Amsterdam.
Pirok, B. (speaker) (2019). Enhancing method development using peak-tracking algorithms to rapidly interpret data, 49th International Symposium on High Performance Liquid Phase Separations and Related Techniques, Kyoto.
Pirok, B. (speaker) (2019). Rapid and Effective Implementation of Comprehensive 2D-LC for 'Impossible' Separations, The Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, Philadelphia.
Groeneveld, I. (speaker), Pirok, B. (speaker), Schoenmakers, P. (speaker) & van Bommel, M. (speaker) (25-10-2018). One size fits all – one method for the simultaneous analysis of natural and synthetic dyes by UHPLC-PDA (optimised by PIOTR), Dyes in History and Archaeology, Lisbon.
Pirok, B. (speaker), Moro, G. (speaker), Meekel, N. (speaker), Berbers, S. (speaker), Schoenmakers, P. (speaker) & van Bommel, M. (speaker) (25-10-2018). Mapping degradation pathways of natural and synthetic dyes with LC-MS: influence of solvent on the degradation of eosin and carminic acid, Dyes in History and Archaeology, Lisbon.
Pirok, B. W. J. (speaker) (3-10-2017). Nanoparticle Analysis by Actively Modulated HDC×SEC with Intermediate Sample Transformation, Labtechnology Conference 2017, Utrecht.
Brooijmans, T. (2022). Specific separation- and detection strategies for the characterization of acid-functional polymers. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
den Uijl, M. J. (2022). Under the influence of light: New chromatographic tools for elucidating photodegradation mechanisms. [Thesis, fully internal, Universiteit van Amsterdam]. [details]
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