Xiaolin Hou is a senior radioanalytical chemist of Technical University of Denmark. He obtained his PhD degree in nuclear and radioanalytical chemistry from Chinese Academy of Science in 1997. Dr. Hou joined to Risø National Laboratory, Denmark (from 2007 Risø becomes part of Technical University of Denmark) in 1998, and has been a senior scientist there from 2003 to 2012. Since May 2013, he was employed as a professor in Center for Nuclear Technologies, Technical University of Denmark (DTU Nutech). His primary research interests are speciation analysis of radionuclides, nuclear and radioanalytical chemistry, ICP-MS and AMS, environmental radioactivity, and radiotracer application. Prof. Hou has author/coauthored more than 220 research articles in peer reviewed scientific journals, one monograph and 8 book chapters, with a SCI h-index of 30 and citations of more than 3000.  He is an associated editor of the Journal of Environmental Radioactivity.

Key Research Areas:

• Development of automated methods for the determination of radionuclides. Some automated separation methods have been developed by employing flow injection/sequential injection techniques and chromatographic separation techniques for rapid and automated separation of radionuclides from matrix and interfering elements and radionuclides, the established method can significantly shorten the analytical time from a few days to less than 2 hours, as well as improve the analytical capacity by automated operating the separation over night. This initiation meets the requirement for analysis of large number of environmental and waste samples in a short time.
• Marine chemistry of iodine. Study of marine chemistry of iodine,  marine geochemical cycle of iodine,Utilization of reprocessing 129I as an oceanographic tracer to study transport of water masses in the Nordic Seas; Application of speciation analysis of 129I as an oceanographic tracer to investigation of marine geochemical cycle of stable iodine.
• Characterisation of nuclear waste for decommissioning by radiochemical analysis. Quick determination of tritium and C-14 in graphite and concrete from nuclear facilities; Simultaneous determination of Ni-63, Fe-55, Ca-41, Sr-90 in concrete from nuclear facilities; Determination of Cl-36 and I-129 in concrete, graphite, steel, aluminium, lead, and water samples. Estimation of radioactivity inventory in the nuclear facilities. Collaboration with Danish Decommission, and Barsebäck NPP.
• Nuclear fuel cycle. Study of the reprocessing procedure, dissolution of the spent nuclear U(Pu)O2 fuel elements, adjustment of valence of plutonium in PUREX process. Chemical process of Th based fuel.
• Radioecology of 129I. Radiochemical neutron activation analysis and acceperator mass spectrometry analysis of 129I. Chemical speciation analysis of 129I in seawater, soil and sediment, Application of 129I for reconstruction of radiation dose of short lived radioiodine in the Chernobyl region.
• Marine radioecology.  Analysis of radionuclides in the marine system, seawater, sediment, seaweeds and marine biota for the investigation of the transport of radioactivity in the ocean, application of radionuclides as oceanography tracer.Collection and analysis of environmental data from European water for estimation of radiation dose to European people.
• Chemical speciation of radionuclides in environment. Development of method for the chemical speciation analysis of Pu, Np, Am, Tc, Re and iodine in marine and terrestrial environmental samples, such as seawater, seaweed, fish, soil, sediment, plants, and animal tissues. Investigation of chemical speciation of above radionuclides in specific environment. Project supported by Kan Villium Rasmussen Foundation (2005-2008), NKS-B project (2007-2008)
• Chemical speciation of iodine in environmental and biological system.  ICP-MS and Epithermal neutron activation analysis of ultra-trace iodine in biological and environmental samples; Chemical speciation of iodine in seaweed, human tissue and water; dietary uptake of iodine in China; biological toxicity of different chemical species of iodine.
• Radiolabelling of proteins for protein adsorption investigation. Labelling of proteins, polyphenol and humic substance with 125I, 131I, and 99mTc;  quantitative determination of protein adsorption on surface for the study on surface modification of polymeric biomaterials for improving biocompatibility using, plasma polymerisation, chemical vapour deposition, graft polymerisation, wet chemical grafting of natural and synthetic polymers. Project supported by Danish Research Council (2008-2010)
• Analysis method for artificial and natural radionuclides and their application in environmental radioactivity: Development of liquid scintillation counting method for beta radionuclide measurement; a Novel method for the determination of Sr-90; Determination of Ra-226, 228 in biological samples by liquid scintillation counting.
• Neutron activation analysis and it application. Epithermal neutron activation analysis for improvement of determination of some trace elements in biological and geological samples. Study on the relationship of trace elements with some diseases, such as respiratory system disease, senile cataract and cancer; determination of the neutron spectrum in a nuclear reactor.

Scientific Society membership:

1. Member of the president board of INTERNATIONAL NUCLEAR CHEMISTRY SOCIETY (INCS),  2002-   http://incs.ege.edu.tr
2. Nominate member of European Association for Chemical and Molecular Societies (EuCheMS) division of Nuclear and Radiochemistry, 2003- ,  http://www.euchems.org/Divisions/NRC/index.asp  

Editorial board member of scintific journals:

(1) Assocaited editor, Journal of Environmental radioactivity (https://www.journals.elsevier.com/journal-of-environmental-radioactivity/editorial-board)

(2) Scientific Reports (https://www.nature.com/srep/about/editorial-board#earthenvironment)

(3) Journal of Radioanalytical and Nuclear Chemistry ( http://www.springer.com/chemistry/journal/10967?detailsPage=editorialBoard)

(4) International Journal of Analytical Chemistry (http://www.hindawi.com/journals/ijac/editors.html)

(5) Journal of Nuclear Fuel Cycle and Waste Technology, (http://www.jnfcwt.or.kr/AboutUs/02.php)

Radiochemical analytical techniques,

Alpha-, gamma- spectrometry, and beta counting

Liquid scintillation counting

Inductively coupled plasma mass spectrometry (ICP-MS),

Inductively coupled plasma optical emission spectrometry (ICP-OES),

Accelerator mass spectrometry,

Neutron activation analysis (NAA),

Ion-, extraction-, gel- and liquid chromatography,

Environmental sampling techniques.