R. (Rick) Helmus MSc
Laboratory Technician
Faculty of Science
Institute for Biodiversity and Ecosystem Dynamics
Visiting address
- Science Park 904
- Room number: C3.222
Postal address
- Postbus 94240
1090 GE Amsterdam
Contact details
-
Publications
- refereed (34)
- academic (4)
- professional (1)
- conference contributions (6)
- recognitions (3)
- datasets (10)
2023
- Sadia, M., Nollen, I., Helmus, R., Ter Laak, T. L., Béen, F., Praetorius, A., & van Wezel, A. P. (2023). Occurrence, Fate, and Related Health Risks of PFAS in Raw and Produced Drinking Water. Environmental Science and Technology. https://doi.org/10.1021/acs.est.2c06015
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]- Narain-Ford, D. M., van Wezel, A. P., Helmus, R., Dekker, S. C., & Bartholomeus, R. P. (2022). Soil self-cleaning capacity: Removal of organic compounds during sub-surface irrigation with sewage effluent. Water Research, 226, [119303]. https://doi.org/10.1016/j.watres.2022.119303 [details]
2021
- Helmus, R., ter Laak, T. L., van Wezel, A. P., de Voogt, P., & Schymanski, E. L. (2021). patRoon: open source software platform for environmental mass spectrometry based non-target screening. Journal of Cheminformatics, 13, [1]. https://doi.org/10.1186/s13321-020-00477-w [details]
- Melkonian, C., Fillinger, L., Atashgahi, S., da Rocha, U. N., Kuiper, E., Olivier, B., Braster, M., Gottstein, W., Helmus, R., Parsons, J. R., Smidt, H., van der Waals, M., Gerritse, J., Brandt, B. W., Röling, W. F. M., Molenaar, D., & van Spanning, R. J. M. (2021). Author Correction: High biodiversity in a benzene-degrading nitrate-reducing culture is sustained by a few primary consumers. Communications biology, 4, [774]. https://doi.org/10.1038/s42003-021-02311-x
- Melkonian, C., Fillinger, L., Atashgahi, S., da Rocha, U. N., Kuiper, E., Olivier, B., Braster, M., Gottstein, W., Helmus, R., Parsons, J. R., Smidt, H., van der Waals, M., Gerritse, J., Brandt, B. W., Röling, W. F. M., Molenaar, D., & van Spanning, R. J. M. (2021). High biodiversity in a benzene-degrading nitrate-reducing culture is sustained by a few primary consumers. Communications biology, 4, [530]. https://doi.org/10.1038/s42003-021-01948-y [details]
- Pham Ngoc, L., Helmus, R., Ehlers, A. W., Swart, K., Besselink, H., de Rijke, E., Dang Thi Cam, H., Brouwer, A., & van der Burg, B. (2021). Effect-directed analysis and chemical identification of agonists of peroxisome proliferator-activated receptors in white button mushroom. Food and Function, 12(1), 133-143. https://doi.org/10.1039/d0fo02071k [details]
- Romera-García, E., Helmus, R., Ballesteros-Gómez, A., & Visser, P. M. (2021). Multi-class determination of intracellular and extracellular cyanotoxins in freshwater samples by ultra-high performance liquid chromatography coupled to high resolution mass spectrometry. Chemosphere, 274, [129770]. https://doi.org/10.1016/j.chemosphere.2021.129770 [details]
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
- Albergamo, V., Schollée, J. E., Schymanski, E. L., Helmus, R., Timmer, H., Hollender, J., & de Voogt, P. (2019). Nontarget Screening Reveals Time Trends of Polar Micropollutants in a Riverbank Filtration System. Environmental Science and Technology, 53(13), 7584−7594. https://doi.org/10.1021/acs.est.9b01750 [details]
- Poursat, B. A. J., van Spanning, R. J. M., Braster, M., Helmus, R., de Voogt, P., & Parsons, J. R. (2019). Biodegradation of metformin and its transformation product, guanylurea, by natural and exposed microbial communities. Ecotoxicology and Environmental Safety, 182, [109414]. https://doi.org/10.1016/j.ecoenv.2019.109414 [details]
- Sammut, G., Sinagra, E., Sapiano, M., Helmus, R., & de Voogt, P. (2019). Perfluoroalkyl substances in the Maltese environment - (II) sediments, soils and groundwater. Science of the Total Environment, 682, 180-189. https://doi.org/10.1016/j.scitotenv.2019.04.403 [details]
- Stanstrup, J., Broeckling, C. D., Helmus, R., Hoffmann, N., Mathé, E., Naake, T., Nicolotti, L., Peters, K., Rainer, J., Salek, R. M., Schulze, T., Schymanski, E. L., Stravs, M. A., Thévenot, E. A., Treutler, H., Weber, R. J. M., Willighagen, E., Witting, M., & Neumann, S. (2019). The metaRbolomics Toolbox in Bioconductor and beyond. Metabolites , 9(10), [200]. https://doi.org/10.3390/metabo9100200 [details]
2018
- Albergamo, V., Helmus, R., & de Voogt, P. (2018). Direct injection analysis of polar micropollutants in natural drinking water sources with biphenyl liquid chromatography coupled to high-resolution time-of-flight mass spectrometry. Journal of Chromatography A, 1569, 53-61. https://doi.org/10.1016/j.chroma.2018.07.036 [details]
- Gao, J., Jansen, B., Cerli, C., Helmus, R., Mikutta, R., Dultz, S., Guggenberger, G., Vogel, C., & Kalbitz, K. (2018). Organic matter coatings of soil minerals affect adsorptive interactions with phenolic and amino acids. European Journal of Soil Science, 69(4), 613-624. https://doi.org/10.1111/ejss.12562 [details]
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
- Carboni, A., Helmus, R., Emke, E., van den Brink, N., Parsons, J. R., Kalbitz, K., & de Voogt, P. (2016). Analysis of fullerenes in soils samples collected in The Netherlands. Environmental Pollution, 219, 47-55. https://doi.org/10.1016/j.envpol.2016.09.034 [details]
- Carboni, A., Helmus, R., Parsons, J. R., Kalbitz, K., & de Voogt, P. (2016). A method for the determination of fullerenes in soil and sediment matrices using ultra-high performance liquid chromatography coupled with heated electrospray quadrupole time of flight mass spectrometry. Journal of Chromatography A, 1433, 123-130. https://doi.org/10.1016/j.chroma.2016.01.035 [details]
- Dimzon, I. K., Trier, X., Frömel, T., Helmus, R., Knepper, T. P., & de Voogt, P. (2016). High Resolution Mass Spectrometry of Polyfluorinated Polyether - based Formulation. Journal of the American Society for Mass Spectrometry, 27(2), 309-318. https://doi.org/10.1007/s13361-015-1269-9 [details]
- Gao, J., Helmus, R., Cerli, C., Jansen, B., Wang, X., & Kalbitz, K. (2016). Robust analysis of underivatized free amino acids in soil by hydrophilic interaction liquid chromatography coupled with electrospray tandem mass spectrometry. Journal of Chromatography A, 1449, 78-88. https://doi.org/10.1016/j.chroma.2016.04.071 [details]
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
- van der Aa, M., Dijkman, E., van de Ven, B., Versteegh, A., Emke, E., Helmus, R., de Voogt, P., Bijlsma, L., & Hernández, F. (2011). Drugs en kalmeringsmiddelen in het oppervlaktewater. H2O, 44(14/15), 4-6. https://issuu.com/h2o-magazine/docs/20110715073707 [details]
2022
- Helmus, R. (2022). patRoon 2.0: Non-target screening workflows for automated transformation product screening and other major improvements. Poster session presented at International Mass Spectrometry Conference, Maastricht, Netherlands. https://doi.org/10.5281/zenodo.6965894
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
- Waaijers, S. L., Helmus, R., Jurgens, S., Kraak, M. H. S., Admiraal, W., de Voogt, P., & Parsons, J. R. (2013). Biodegradation of Organophosphorus Flame Retardants. 381. Poster session presented at SETAC Europe 23rd Annual Meeting. https://c.ymcdn.com/sites/www.setac.org/resource/resmgr/Abstract_Books/SE-abstract-book-2013.pdf
2012
- Waaijers, S. L., Helmus, R., Blair, C., Parsons, J. R., Kraak, M. H. S., Admiraal, W., & de Voogt, P. (2012). Biodegradation of Halogen-Free Flame Retardants. Poster session presented at SETAC North America 33rd Annual Meeting, Long Beach, California, USA, November 2012. http://longbeach.setac.org/sites/default/files/SETAC-abstract-book-2012.pdf
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
- Schymanski, E., Bolton, E., Cheng, T., Thiessen, P., Zhang, J. & Helmus, R. (2022). Transformations in PubChem - Full Dataset. Zenodo. https://doi.org/10.5281/zenodo.7041946
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: Improved non-target analysis workflows including automated transformation product screening. Zenodo. https://doi.org/10.5281/zenodo.5752071
- Helmus, R., Absalah, S. & Narain-Ford, D. (23-11-2021). rickhelmus/patRoonData: patRoonData 2.0.0. Zenodo. https://doi.org/10.5281/zenodo.5721322
- Schymanski, E., Bolton, E., Cheng, T., Thiessen, P., Zhang, J. & Helmus, R. (2021). Transformations in PubChem - Full Dataset. Zenodo. https://doi.org/10.5281/zenodo.5644561
2020
- Helmus, R. (11-6-2020). patRoon 1.0 manuals. Zenodo. https://doi.org/10.5281/zenodo.3889936
- Helmus, R., Albergamo, V., Brock, O. & Brunner, A. (11-6-2020). patRoon 1.0. Zenodo. https://doi.org/10.5281/zenodo.3889856
- Helmus, R. (8-6-2020). patRoon benchmarking & demonstration data. Zenodo. https://doi.org/10.5281/zenodo.3885448
- Helmus, R. & Albergamo, V. (7-4-2020). patRoonData. Zenodo. https://doi.org/10.5281/zenodo.3743266
2019
- Albergamo, V., Schollée, J. E., Schymanski, E. L., Helmus, R., Timmer, H., Hollender, J. & De Voogt, P. (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
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].