No photo of Per Roos
  • Frederiksborgvej 399, 204, S08

    4000 Roskilde

    Denmark

20002019
If you made any changes in Pure these will be visible here soon.

Research Output 2000 2019

2019
99 Downloads (Pure)

Background reduction at DTU Nutech surface gamma laboratory

Marković, N., Roos, P., Nielsen, S. P. & Cai, X. X., 2019, In : Applied Radiation and Isotopes. 151, p. 30-38

Research output: Contribution to journalJournal articleResearchpeer-review

File

Isolation and quantification of a 93Mo isotope solution from proton irradiated niobium

Roos, P., 2019, In : Talanta. 204, p. 769-775

Research output: Contribution to journalJournal articleResearchpeer-review

Organic carbon recycling in Baltic Sea sediments – An integrated estimate on the system scale based on in situ measurements

Nilsson, M. M., Kononets, M., Ekeroth, N., Viktorsson, L., Hylén, A., Sommer, S., Pfannkuche, O., Almroth-Rosell, E., Atamanchuk, D., Andersson, J. H., Roos, P., Tengberg, A. & Hall, P. O. J., 2019, In : Marine Chemistry. 209, p. 81-93

Research output: Contribution to journalJournal articleResearchpeer-review

38 Downloads (Pure)

Challenges associated with the behaviour of radioactive particles in the environment

Salbu, B., Kashparov, V., Lind, O. C., Garcia-Tenorio, R., Johansen, M. P., Child, D. P., Roos, P. & Sancho, C., 2018, In : Journal of Environmental Radioactivity. 186, p. 101-115

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
59 Downloads (Pure)

Determination of 93Mo (and 94Nb) in nuclear decommissioning waste from a nuclear reactor

Osváth, S., Hou, X., Roos, P., Qiao, J. & Markovic, N., 2018

Research output: Non-textual formSound/Visual production (digital)Communication

Open Access
File
50 Downloads (Pure)

Determination of 93Mo (and 94Nb) in nuclear decommissioning waste from a nuclear reactor

Osváth, S., Hou, X., Roos, P., Qiao, J. & Markovic, N., 2018.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

Open Access
File
119 Downloads (Pure)

On the application of ICP-MS techniques for measuring uranium and plutonium: a Nordic inter-laboratory comparison exercise

Qiao, J., Lagerkvist, P., Rodushkin, I., Salminen-Paatero, S., Roos, P., Lierhagen, S., Jensen, K. A., Engstrom, E., Lahaye, Y. & Skipperud, L., 2018, In : Journal of Radioanalytical and Nuclear Chemistry. 315, 3, p. 565-580

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
44 Downloads (Pure)

Pacific Proving Grounds radioisotope imprint in the Philippine Sea sediments

Pittauer, D., Roos, P., Qiao, J., Geibert, W., Elvert, M. & Fischer, H. W., 2018, In : Journal of Environmental Radioactivity. 186, p. 131-141

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
2017
181 Downloads (Pure)

Anthropogenic 236U in Danish Seawater: Global Fallout versus Reprocessing Discharge

Qiao, J., Steier, P., Nielsen, S. P., Hou, X., Roos, P. & Golser, R., 2017, In : Environmental Science and Technology. 51, 12, p. 6867-6876 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
433 Downloads (Pure)

Coincidence gamma-ray spectrometry

Markovic, N., Roos, P. & Nielsen, S. P., 2017, Proceedings of the 11th Symposium of the Croatian Radiation Protection Association. p. 182-186 5 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
424 Downloads (Pure)

Comparison of the analytical methods used to determine natural and artificial radionuclides from environmental samples by gamma, alpha and beta spectrometry: Final Report from the NKS-B CAMNAR activity

Pöllänen, R., Virtanen, S., Kämäräinen, M., Kaipiainen, M., Hou, X., Roos, P., Eriksson, M., Ehrs, S., Nalbandyan, A., Møller, B., Jonsson, S., Lagerkvist, P. & Tovedal, A., 2017, Nordic Nuclear Safety Research. 27 p.

Research output: Book/ReportReport

Open Access
File

Digital gamma-gamma coincidence HPGe system for environmental analysis

Markovic, N., Roos, P. & Nielsen, S. P., 2017, In : Applied Radiation and Isotopes. 126, p. 194-196 3 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Erratum to: Inter-laboratory exercise with an aim to compare methods for 90Sr and 239,240Pu determination in environmental soil samples

Qiao, J., Salminen-Paatero, S., Rondahl, S. H., Bourgeaux-Goget, M., Roos, P., Lagerkvist, P., Strålberg, E. & Ramebäck, H., 2017, In : Journal of Radioanalytical and Nuclear Chemistry. 314, 2, p. 827

Research output: Contribution to journalComment/debateResearchpeer-review

153 Downloads (Pure)

Inter-laboratory exercise with an aim to compare methods for 90Sr and 239,240Pu determination in environmental soil samples

Qiao, J., Salminen-Paatero, S., Rondahl, S. H., Bourgeaux-Goget, M., Roos, P., Lagerkvist, P., Strålberg, E. & Ramebäck, H., 2017, In : Journal of Radioanalytical and Nuclear Chemistry. 314, 2, p. 813-826

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File

Low-level gamma-ray spectrometry for the determination of 210Pb

Markovic, N., Roos, P. & Nielsen, S. P., 2017, In : Journal of Radioanalytical and Nuclear Chemistry. 311, p. 1473–1478

Research output: Contribution to journalJournal articleResearchpeer-review

Pottery versus sediment: Optically stimulated luminescence dating of the Neolithic Vinča culture, Serbia

Bate, S., Stevens, T., Buylaert, J-P., Marković, S. B., Roos, P. & Tasić, N., 2017, In : Quaternary International. 429, Part A, p. 45-53

Research output: Contribution to journalJournal articleResearchpeer-review

147 Downloads (Pure)

The fate of fixed nitrogen in marine sediments with low organic loading: an in situ study

Bonaglia, S., Hylén, A., Rattray, J. E., Kononets, M., Ekeroth, N., Roos, P., Thamdrup, B., Brüchert, V. & Hall, P. O. J., 2017, In : Biogeosciences. 14, p. 285-300

Research output: Contribution to journalJournal articleResearchpeer-review

Open Access
File
2016

Analysis of Technetium Species and Fractions in Natural Seaweed Using Biochemical Separation and ICP-MS Measurement

Shi, K., Hou, X., Qiao, J., Sun, X., Roos, P. & Wu, W., 2016, In : Analytical chemistry. 88, 23, p. 11931-11937 7 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Historical records of organic matter supply and degradation status in the East Siberian Sea

Bröder, L., Tesi, T., Andersson, A., Eglinton, T. I., Semiletov, I. P., Dudarev, O. V., Roos, P. & Gustafsson, Ö., 2016, In : Organic Geochemistry. 91, p. 16-30 15 p.

Research output: Contribution to journalJournal articleResearchpeer-review

65 Downloads (Pure)

Marine dispersion of 236U in Danish Straits

Qiao, J., Steier, P., Nielsen, S. P., Hou, X., Roos, P. & Golser, R., 2016, 9th International Conference on Nuclear and Radiochemistry - NRC9: Abstracts. p. 287-287 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Open Access
File
2015
471 Downloads (Pure)

Characterisation of NORM Contaminated Objects: Reliable and Efficient

Breddam, K., Hou, X., Koufakis, M., Natvig, H., Nielsen, C. & Roos, P., 2015, Roskilde: NKS Secretariat. 37 p. (NKS; No. 335).

Research output: Book/ReportReport

Open Access
File

Hair as an indicator of the body content of polonium in humans: Preliminary results from study of five male volunteers

Rääf, C. L., Holstein, H., Holm, E. & Roos, P., 2015, In : Journal of Environmental Radioactivity. 141, p. 71-75 5 p.

Research output: Contribution to journalJournal articleResearchpeer-review

1 Downloads (Pure)

Plutonium as a tracer for soil erosion assessment in northeast China

Xu, Y., Qiao, J., Pan, S., Hou, X., Roos, P. & Cao, L., 2015, In : Science of the Total Environment. 511, p. 176-185 10 p.

Research output: Contribution to journalJournal articleResearchpeer-review

57 Downloads (Pure)

Rapid determination of 90Sr from 90Y in Marine Fish

Xu, K. & Roos, P., 2015, Book of Abstracts. DTU's Sustain Conference 2015. Lyngby: Technical University of Denmark, 1 p. F-16

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Open Access
File
2014

Determination of plutonium isotopes (238Pu, 239Pu, 240Pu, 241Pu) in environmental samples using radiochemical separation combined with radiometric and mass spectrometric measurements

Xu, Y., Qiao, J., Hou, X., Pan, S. & Roos, P., 2014, In : Talanta. 119, p. 590–595

Research output: Contribution to journalJournal articleResearchpeer-review

67 Downloads (Pure)

Improvement of radiological consequence estimation methodologies for NPP accidents in the ARGOS and RODOS decision support systems through consideration of contaminant physico-chemical forms

Andersson, K. G., Roos, P., Lind, O. C., Salbu, B., Bujan, A., Duranova, T., Ikonomopoulos, A. & Andronopoulos, S., 2014, Proceedings of the International Conference on Radioecology and Environmental Radioactivity. Strand, P., Brown, J. & Jølle, T. (eds.). Norwegian Radiation Protection Authority, 4 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Open Access
File
901 Downloads (Pure)

Radiochemical extraction of actinides in the beach areas near by a mothballed nuclear power plant

Roviello, V., Ruberti, D., De Cesare, M., Terrasi, F., Sabbarese, C., De Cesare, N., Hou, X., Roos, P. & Raffaele, B., 2014, Programme and Abstracts Handbook: The Thirteenth International Conference on Accelerator Mass Spectrometry (AMS-13). Marseille University, p. 94 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Open Access
File

Rapid Multisample Analysis for Simultaneous Determination of Anthropogenic Radionuclides in Marine Environment

Qiao, J., Shi, K., Hou, X., Nielsen, S. P. & Roos, P., 2014, In : Environmental Science & Technology (Washington). 48, 7, p. 3935-3942

Research output: Contribution to journalJournal articleResearchpeer-review

2013
560 Downloads (Pure)

Consequences of severe radioactive releases to Nordic Marine environment: Final report for the NKS-B activity 2012

Iosjpe, M., Isaksson, M., Joensen, H. P., Lahtinen, J., Logemann, K., Pálsson, S. E., Roos, P. & Suolanen, V., 2013, Roskilde: NKS Secretariat. 56 p. (NKS; No. 276).

Research output: Book/ReportReport

Open Access
File
182 Downloads (Pure)

Determination of radioisotopes using ICP‐MS

Roos, P., 2013

Research output: Non-textual formSound/Visual production (digital)Research

File
274 Downloads (Pure)

Determination of radioisotopes using ICP-MS – the coupling between chemistry and instrumentation

Roos, P., 2013, Abstract Book of the NKS Workshop on Radioanalytical Chemistry, Risø, Roskilde, Denmark, 2-6th Sept. 2013. Hou, X. (ed.). NKS Secretariat, p. 20 1 p. (NKS; No. 290).

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Open Access
File
508 Downloads (Pure)

Doses from natural radioactivity in wild mushrooms and berries to the Nordic population. Interim Report from the NKS-B BERMUDA activity

Turtiainen, T., Brunfeldt, M., Rasilainen, T., Skipperud, L., Valle, L., Popic, J. M., Roos, P., Sundell-Bergman, S. & Rosén, K., 2013, Nordisk Kernesikkerhedsforskning. 16 p. (NKS; No. 273).

Research output: Book/ReportReport

Open Access
File

Method for Determination of Neptunium in Large-Sized Urine Samples Using Manganese Dioxide Coprecipitation and 242Pu as Yield Tracer

Qiao, J., Hou, X. & Roos, P., 2013, In : Analytical Chemistry. 85, 3, p. 1889-1895

Research output: Contribution to journalJournal articleResearchpeer-review

301 Downloads (Pure)

Plutonium in Southern Hemisphere ocean Waters

Hirose, K., Aoyama, M., Gastaud, J., Fukasawa, M., Kim, C. -S., Levy, I., Povinec, P. P., Roos, P., Sanchez-Cabeza, J. A. & Yim, S. A., 2013, In : International Atomic Energy Agency. Proceedings Series. 1580, p. 493-500

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File

Recycling and burial of phosphorus in sediments of an anoxic fjord-the By Fjord, western Sweden

Viktorsson, L., Kononets, M., Roos, P. & Hall, P. O. J., 2013, In : Journal of Marine Research. 71, 5, p. 351-374 24 p.

Research output: Contribution to journalJournal articleResearchpeer-review

Release of iodine from organic matter in natural water by K2S2O8 oxidation for 129I determination

Dang, H., Hou, X., Roos, P. & Nielsen, S. P., 2013, In : Analytical Methods. 5, 2, p. 449-456

Research output: Contribution to journalJournal articleResearchpeer-review

Seasonal variation of technetium-99 in Fucus vesiculosus and its application as an oceanographic tracer

Shi, K., Hou, X., Roos, P., Wu, W. & Nielsen, S. P., 2013, In : Estuarine, Coastal and Shelf Science. 127, p. 24-28

Research output: Contribution to journalJournal articleResearchpeer-review

Sequential injection approach for simultaneous determination of ultratrace plutonium and neptunium in urine with accelerator mass spectrometry.

Qiao, J., Hou, X., Roos, P., Lachner, J., Christl, M. & Xu, Y., 2013, In : Analytical Chemistry. 85, 18, p. 8826-8833

Research output: Contribution to journalJournal articleResearchpeer-review

2012
67 Downloads (Pure)

A peristaltic pump driven 89Zr separation module

Siikanen, J., Peterson, M., Tran, T., Roos, P., Ohlsson, T. & Sandell, A., 2012, In : A I P Conference Proceedings Series. 1509, p. 206-210

Research output: Contribution to journalConference articleResearchpeer-review

Open Access
File
963 Downloads (Pure)

Determination of technetium-99 in environmental samples: A review

Shi, K., Hou, X., Roos, P. & Wu, W., 2012, In : Analytica Chimica Acta. 709, p. 1-20

Research output: Contribution to journalJournal articleResearchpeer-review

File
1608 Downloads (Pure)

High capacity lab-on-valve bead injection extraction chromatography for radip determinaiton of plutonium in human urine

Qiao, J., Hou, X., Miró, M., Cerdà, V. & Roos, P., 2012, Abstracts. American Nuclear Society, 1 p.

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsResearchpeer-review

Open Access
File
571 Downloads (Pure)

Natural Radionuclides in Meadow and Pasture land in the Nordic countries

Rosén, K., Villanueva, J. . L. G., Sundell-Bergman, S., Solatie, D., Kostiainen, E., Turtiainen, T., Roos, P., Pálsson, S. E., Skuterud, L., Thørring, H., Skipperud, L. & Popic, J. M., 2012, NKS Secretariat. 58 p. (NKS; No. 265).

Research output: Book/ReportReport

Open Access
File

Rapid Determination of Technetium-99 in Large Volume Seawater Samples Using Sequential Injection Extraction Chromatographic Separation and ICP-MS Measurement

Shi, K., Qiao, J., Wu, W., Roos, P. & Hou, X., 2012, In : Analytical Chemistry. 84, 15, p. 6783-6789

Research output: Contribution to journalJournal articleResearchpeer-review

125 Downloads (Pure)

Revisiting the dose calculation methodologies in European decision support systems

Andersson, K. G., Roos, P., Hou, X., Nielsen, S. P. & Qiao, J., 2012, Proceedings of the IRPA13 conference. International Radiation Protection Association, 6 p.

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

File

Stability of Technetium and Decontamination from Ruthenium and Molybdenum in Determination of 99Tc in Environmental Solid Samples by ICPMS

Shi, K., Hou, X., Roos, P. & Wu, W., 2012, In : Analytical Chemistry. 84, 4, p. 2009-2016

Research output: Contribution to journalJournal articleResearchpeer-review

2011

Aspects on the analysis of 210Po

Henricsson, F., Ranebo, Y., Holm, E. & Roos, P., 2011, In : Journal of Environmental Radioactivity. 102, 5, p. 415-419

Research output: Contribution to journalJournal articleResearchpeer-review

Determination of 99Tc in seaweed samples by ICP-MS

Shi, K., Hou, X., Roos, P. & Wu, W., 2011.

Research output: Contribution to conferenceConference abstract for conferenceResearch