For best experience please turn on javascript and use a modern browser!
You are using a browser that is no longer supported by Microsoft. Please upgrade your browser. The site may not present itself correctly if you continue browsing.

R. (Rick) Helmus MSc

Laboratory Technician
Faculty of Science
Institute for Biodiversity and Ecosystem Dynamics
Photographer: Jan van Arkel

Visiting address
  • Science Park 904
  • Room number: C3.222
Postal address
  • Postbus 94240
    1090 GE Amsterdam
  • Publications

    2022

    • Helmus, R., van de Velde, B., Brunner, A. M., ter Laak, T. L., van Wezel, A. P., & Schymanski, E. L. (2022). patRoon 2.0: Improved non-target analysis workflows including automated transformation product screening. The Journal of Open Source Software, 7(71), [4029]. https://doi.org/10.21105/joss.04029 [details]

    2021

    2020

    • Albergamo, V., Escher, B. I., Schymanski, E. L., Helmus, R., Dingemans, M. M. L., Cornelissen, E. R., Kraak, M. H. S., Hollender, J., & de Voogt, P. (2020). Evaluation of reverse osmosis drinking water treatment of riverbank filtrate using bioanalytical tools and non-target screening. Environmental Science: Water Research and Technology, 6(1), 103-116. https://doi.org/10.1039/c9ew00741e [details]
    • Brock, O., Helmus, R., Kalbitz, K., & Jansen, B. (2020). Non-target screening of leaf litter-derived dissolved organic matter using liquid chromatography coupled to high-resolution mass spectrometry (LC-QTOF-MS). European Journal of Soil Science, 71(3), 420-432. https://doi.org/10.1111/ejss.12894 [details]
    • Collet, B., van Vugt-Lussenburg, B. M. A., Swart, K., Helmus, R., Naderman, M., de Rijke, E., Eggesbø, M., Brouwer, A., & van der Burg, B. (2020). Antagonistic activity towards the androgen receptor independent from natural sex hormones in human milk samples from the Norwegian HUMIS cohort. Environment International, 143, [105948]. https://doi.org/10.1016/j.envint.2020.105948 [details]
    • García-Jaramillo, M., Trippe, K. M., Helmus, R., Knicker, H. E., Cox, L., Hermosín, M. C., Parsons, J. R., & Kalbitz, K. (2020). An examination of the role of biochar and biochar water-extractable substances on the sorption of ionizable herbicides in rice paddy soils. Science of the Total Environment, 706, [135682]. https://doi.org/10.1016/j.scitotenv.2019.135682 [details]
    • Poursat, B. A. J., van Spanning, R. J. M., Braster, M., Helmus, R., de Voogt, P., & Parsons, J. R. (2020). Long-term exposure of activated sludge in chemostats leads to changes in microbial communities composition and enhanced biodegradation of 4-chloroaniline and N-methylpiperazine. Chemosphere, 242, [125102]. https://doi.org/10.1016/j.chemosphere.2019.125102 [details]
    • Van Leeuwen, J. A., Hartog, N., Gerritse, J., Gallacher, C., Helmus, R., Brock, O., Parsons, J. R., & Hassanizadeh, S. M. (2020). The dissolution and microbial degradation of mobile aromatic hydrocarbons from a Pintsch gas tar DNAPL source zone. Science of the Total Environment, 722, [137797]. https://doi.org/10.1016/j.scitotenv.2020.137797 [details]
    • Wagner, T. V., Helmus, R., Becker, E., Rijnaarts, H. H. M., de Voogt, P., Langenhoff, A. A. M., & Parsons, J. R. (2020). Impact of transformation, photodegradation and interaction with glutaraldehyde on the acute toxicity of the biocide DBNPA in cooling tower water. Environmental Science: Water Research and Technology, 6(4), 1058-1068. https://doi.org/10.1039/c9ew01018a [details]
    • Wagner, T. V., Helmus, R., Quiton Tapia, S., Rijnaarts, H. H. M., de Voogt, P., Langenhoff, A. A. M., & Parsons, J. R. (2020). Non-target screening reveals the mechanisms responsible for the antagonistic inhibiting effect of the biocides DBNPA and glutaraldehyde on benzoic acid degradation. Journal of Hazardous Materials, 386, [121661]. https://doi.org/10.1016/j.jhazmat.2019.121661 [details]

    2019

    2018

    2017

    • Ballesteros-Gómez, A., Ballesteros, J., Ortiz, X., Jonker, W., Helmus, R., Jobst, K. J., Parsons, J. R., & Reiner, E. J. (2017). Identification of Novel Brominated Compounds in Flame Retarded Plastics Containing TBBPA by Combining Isotope Pattern and Mass Defect Cluster Analysis. Environmental Science and Technology, 51(3), 1518–1526. https://doi.org/10.1021/acs.est.6b03294 [details]
    • Carboni, A., Helmus, R., Parsons, J. R., Kalbitz, K., & de Voogt, P. (2017). Incubation of solid state C60 fullerene under UV irradiation mimicking environmentally relevant conditions. Chemosphere, 175, 1-7. https://doi.org/10.1016/j.chemosphere.2017.01.149 [details]
    • Egea, T. C., da Silva, R., Boscolo, M., Rigonato, J., Monteiro, D. A., Grünig, D., da Silva, H., van der Wielen, F., Helmus, R., Parsons, J. R., & Gomes, E. (2017). Diuron degradation by bacteria from soil of sugarcane crops. Heliyon, 3(12), [e00471]. https://doi.org/10.1016/j.heliyon.2017.e00471 [details]
    • Gao, J., Jansen, B., Cerli, C., Helmus, R., Mikutta, R., Dultz, S., Guggenberger, G., & Kalbitz, K. (2017). Competition and surface conditioning alter the adsorption of phenolic and amino acids on soil minerals. European Journal of Soil Science, 68(5), 667-677. https://doi.org/10.1111/ejss.12459 [details]
    • Sammut, G., Sinagra, E., Helmus, R., & de Voogt, P. (2017). Perfluoroalkyl substances in the Maltese Environment - (I) Surface water and rain water. Science of the Total Environment, 589, 182-190. https://doi.org/10.1016/j.scitotenv.2017.02.128 [details]

    2016

    2015

    • Lavtižar, V., Helmus, R., Kools, S. A. E., Dolenc, D., van Gestel, C. A. M., Trebše, P., Waaijers, S. L., & Kraak, M. H. S. (2015). Daphnid life cycle responses to the insecticide chlorantraniliprole and its transformation products. Environmental Science and Technology, 49(6), 3922-3929. https://doi.org/10.1021/es506007q [details]

    2014

    • Jurgens, S. S., Helmus, R., Waaijers, S. L., Uittenbogaard, D., Dunnebier, D., Vleugel, M., Kraak, M. H. S., de Voogt, P., & Parsons, J. R. (2014). Mineralisation and primary biodegradation of aromatic organophosphorus flame retardants in activated sludge. Chemosphere, 111, 238-242. https://doi.org/10.1016/j.chemosphere.2014.04.016 [details]

    2013

    • Waaijers, S. L., Hartmann, J., Soeter, A. M., Helmus, R., Kools, S. A. E., de Voogt, P., Admiraal, W., Parsons, J. R., & Kraak, M. H. S. (2013). Toxicity of new generation flame retardants to Daphnia magna. Science of the Total Environment, 463-464, 1042-1048. https://doi.org/10.1016/j.scitotenv.2013.06.110 [details]

    2018

    • Albergamo, V., Schollee, J., Schymanski, E., Helmus, R., Hollender, J., & de Voogt, P. (2018). Detecting polar micropollutants in a river-riverbank filtrate using non-target screening. Abstracts of papers of the American Chemical Society, 255.
    • Carboni, A., Helmus, R., de Voogt, P., Kalbitz, K., & Parsons, J. (2018). Degradation of solid state C60 fullerene by UV irradiation under environmentally relevant conditions. Abstracts of papers of the American Chemical Society, 255.
    • Poursat, B., Braster, M., Helmus, R., van Spanning, R., de Voogt, P., & Parsons, J. (2018). Adaptation of microbial communities to emerging pollutants in chemostat systems. Abstracts of papers of the American Chemical Society, 255.

    2011

    • de Voogt, P., Emke, E., Helmus, R., Panteliadis, P., & van Leerdam, J. A. (2011). Determination of illicit drugs in the water cycle by LC-Orbitrap MS. In S. Castiglioni, E. Zuccato, & R. Fanelli (Eds.), Illicit drugs in the environment: occurrence, analysis, and fate using mass spectrometry (pp. 87-114). (Wiley-Interscience Series on Mass Spectrometry). Wiley. https://doi.org/10.1002/9781118000816.ch5 [details]

    2011

    2021

    • Helmus, R., van de Velde, B., ter Laak, T. L., & Schymanski, E. L. (2021). patRoon 2.0: Comprehensive non-target screening workflows including automated transformation product screening and other major improvements. Abstract from International Conference on Non-Target Screening, Erding, Bavaria, Germany.

    2019

    • Helmus, R., Schymanski, E. L., ter Laak, T. L., & de Voogt, W. P. (2019). Open source software platform for mass spectrometry based non-target screening in the environment. Poster session presented at Metabolomics 2019, Den Haag, Netherlands.

    2014

    • Jurgens, S., Waaijers, S. L., Helmus, R., Kraak, M. H. S., Admiraal, W., de Voogt, P., & Parsons, J. R. (2014). Mineralisation and biodegradation of aromatic organophosphorus flame retardants. Poster session presented at SETAC Europe 24th Annual Meeting, 11-15 May 2014, Basel.

    2013

    2012

    Talk / presentation

    • Helmus, R. (speaker) (4-10-2021). patRoon 2.0: Comprehensive NTA workflows with automated transformation product screening and other major improvements, International Conference on Non-Target Screening, Erding.
    • Helmus, R. (speaker) (21-4-2021). patRoon: open source software platform for mass spectrometry based non-target screening in the environment, Oregon State University.
    • Helmus, R. (speaker) (3-5-2020). patRoon: Open-Source Software Platform for Environmental Non-Target Studies, SETAC SciCon.

    2022

    • Narain-Ford, D., van Wezel, A., Helmus, R. , Dekker, S. & Bartholomeus, R. (3-5-2022). Data for "Soil self-cleaning capacity: Removal of organic compounds during sub-surface irrigation". Mendeley Data. https://doi.org/10.17632/4x77nynfnx.1

    2021

    • Helmus, R. , van de Velde, B., Brunner, A. M., ter Laak, T., van Wezel, A. & Schymanski, E. L. (3-12-2021). patRoon 2.0. Zenodo. https://doi.org/10.5281/zenodo.5752071
    • Helmus, R. , Absalah, S. & Narain-Ford, D. (23-11-2021). patRoonData 2.0. Zenodo. https://doi.org/10.5281/zenodo.5721322
    • van Wezel, A. P., ter Laak, T. L., Helmus, R., Schymanski, E. L. & de Voogt, P. (1-1-2021). Additional file 1 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535189.v1
    • ter Laak, T. L., de Voogt, P., Helmus, R., Schymanski, E. L. & van Wezel, A. P. (1-1-2021). Additional file 3 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535195.v1
    • de Voogt, P., Schymanski, E. L., van Wezel, A. P., Helmus, R. & ter Laak, T. L. (1-1-2021). Additional file 2 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535192.v1
    • van Wezel, A. P., Helmus, R., Schymanski, E. L., de Voogt, P. & ter Laak, T. L. (1-1-2021). Additional file 6 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535204.v1
    • van Wezel, A. P., ter Laak, T. L., Helmus, R., de Voogt, P. & Schymanski, E. L. (1-1-2021). patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.c.5259674.v1
    • ter Laak, T. L., Helmus, R., de Voogt, P., van Wezel, A. P. & Schymanski, E. L. (1-1-2021). Additional file 4 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535198.v1
    • de Voogt, P., ter Laak, T. L., van Wezel, A. P., Schymanski, E. L. & Helmus, R. (1-1-2021). Additional file 5 of patRoon: open source software platform for environmental mass spectrometry based non-target screening. figshare Academic Research System. https://doi.org/10.6084/m9.figshare.13535201.v1

    2020

    2019

    • Albergamo, V., De Voogt, P., Hollender, J., Schymanski, E. L., Timmer, H., Helmus, R. & Scholl?e, J. E. (1-1-2019). List of (tentatively) identified non-target structures. Zenodo. https://doi.org/10.5281/zenodo.3246770
    This list of publications is extracted from the UvA-Current Research Information System. Questions? Ask the library or the Pure staff of your faculty / institute. Log in to Pure to edit your publications. Log in to Personal Page Publication Selection tool to manage the visibility of your publications on this list.
  • Ancillary activities
    • No ancillary activities