• Cd2+ and Zn2+ sorption on apatite in the presence of EDTA and humic substanceViipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, Kaia; Shchukarev, AndreyConference abstracts : 16th International Conference on Heavy Metals in the Environment : Rome, 23-27 September 20122012 https://www.diva-portal.org/smash/get/diva2:1167261/FULLTEXT01.pdf
• Cd2+ and Zn2+ sorption on apatite in the presence of EDTA and humic substanceViipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, Kaia; Shchukarev, AndreyProceedings of the 16th International Conference on Heavy Metals in the Environment : Rome, Italy, September 23-27, 20122013 / p. 01008-p.1-01008-p.4 : ill
• Cd2+ and Zn2+ sorption on hydroxyapatite in the presence of EDTA in aqueous solution in equilibrium stateViipsi, Karin; Tõnsuaadu, KaiaSETAC Europe 21st Annual Meeting Ecosystem Protection in a Sustainable World : a Challenge for Science and Regulation, Milan, 15-19 May 2011 : abstract book2011 / p. 129-130
• Cd(II) ja Zn(II) eraldamine vesilahusest hüdroksüül- ja fluorapatiidiga EDTA juuresolekulViipsi, Karin; Kaju, K.; Tõnsuaadu, Kaia; Shchukarev, AndreyXXXII Eesti Keemiapäevad : teaduskonverentsi teesid2011 / lk. 110
• Doctoral thesis on toxic metal removal by apatitesViipsi, KarinGlobal TraPs : global transdisciplinary processes for sustainable phosphorus management (2010–2015) : newsletter2012 / p. 3 : photo
• EDTA impact on Cd2+ migration in apatite-water systemTõnsuaadu, Kaia; Viipsi, Karin; Trikkel, Andres; Viipsi, KarinJournal of hazardous materials2008 / p. 491-497 : ill https://www.sciencedirect.com/science/article/pii/S0304389407014999
• Enhancing the surface charge of BCTMP of aspen with supercritical CO2 treatmentKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Kallavus, UrveBaltic Polymer Symposium 2013 : Trakai, Lithuania, September 18-21, 2013 : programme [and abstracts]2013 / p. 87 : ill
• Enhancing the surface charge of BCTMP of aspen with supercritical CO2 treatmentKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Kallavus, UrveTÜ ja TTÜ doktorikool “Funktsionaalsed materjalid ja tehnoloogiad”2013 / [1] p. : ill
• Hüdroksüülaptiidi lahustumine ja pinna komplekseerumine Cd2+ ja EDTA juuresolekulViipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, KaiaXXXI Eesti keemiapäevad : [28. aprill 2010, Tallinn] : teaduskonverentsi teesid = 31st Estonian Chemistry Days : abstracts of scientific conference2010 / lk. 83
• Hydroxy- and fluorapatite as a sorbents in Cd(II) - Zn(II) multicomponent solution in the presence of EDTAViipsi, Karin; Tõnsuaadu, Kaia; Shchukarev, Andrey6th ISMOM : International Symposium of Interactions of Soil Minerals with Organic Components and Microorganisms; 3rd InterCongress of Commission 2.5 IUSS Soil chemical, physical and biological interfacial reactions, 26th June - 1st July 2011, Montpellier, France : conference proceedings; book of abstracts2011 / [1 p.]
• Hydroxy- and fluorapatite as sorbents in Cd(II)–Zn(II) multi-component solutions in the absence/presence of EDTAViipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, Kaia; Shchukarev, AndreyJournal of hazardous materials2013 / p. 91-98 : ill https://doi.org/10.1016/j.jhazmat.2013.02.034 https://www.scopus.com/sourceid/25858 https://www.scopus.com/record/display.uri?eid=2-s2.0-84874964266&origin=resultslist&sort=plf-f&src=s&sot=b&sdt=b&s=DOI%2810.1016%2Fj.jhazmat.2013.02.034%29&sessionSearchId=fc706d6593399b616dd932e591493e19&relpos=0 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20HAZARD%20MATER&year=2013 https://www.webofscience.com/wos/woscc/full-record/WOS:000320288800012
• Impact of EDTA and humic substance on the removal of Cd2+ and Zn2+ from aqueous solutions by apaptiteViipsi, Karin; Sjöberg, Staffan; Tõnsuaadu, Kaia; Shchukarev, AndreyEnvironment abstracts : seventh Annual International Conference on Environment : 14-17 May 2012, Athens, Greece2012 / p. 85-86
• Impact of EDTA and humic substances on the removal of Cd and Zn from aqueous solutions by apatite = EDTA ja humiinaine mõju Cd ja Zn eraldamisele vesilahusest apatiidigaViipsi, Karin2012
• Impact of humic acid on Cd2+ ions sorption on apatite in aqueous solutionViipsi, Karin; Tõnsuaadu, Kaia12th Nordic-Baltic IHSS Symposium on Natural Organic Matter in Environment and Technology : Tallinn, Estonia, June 14-17, 2009 : program and abstracts2009 / p. 92
• Impact of soluble humic substance on Cd2+ sorption on apatite in aqueous solutionsViipsi, Karin; Tõnsuaadu, Kaia; Peld, MerikeChemistry and ecology2010 / Suppl., p. 77-85 : ill
• Nature of materials obtained by sorption of M2+ and M3+ metal ions on apatite surfaceTõnsuaadu, Kaia; Gruselle, Michel; Gredin, Patrick; Viipsi, Karin; Mikli, Valdek; Shchukarev, Andrey; Sjöberg, Staffan19th International Conference on Phosphorus Chemistry : book of abstracts2012 / p. 110
• Study of the effect of mechanical treatment and supercritical CO2 extraction on aspen BCTMP by surface charge measurements and SEMKärner, Kärt; Talviste, Rasmus; Viipsi, Karin; Elomaa, Matti Antero; Kallavus, UrveCellulose chemistry and technology2014 / p. 535-544 : ill https://www.cellulosechemtechnol.ro/pdf/CCT5-6(2014)/p.535-544.pdf https://www.scopus.com/sourceid/25811 https://www.scopus.com/record/display.uri?eid=2-s2.0-84910109387&origin=inward&txGid=1eff4a0a67944666e27cdce8c0b2b76e https://jcr.clarivate.com/jcr-jp/journal-profile?journal=CELL%20CHEM%20TECHNOL&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000343076300014
• A surface complexation and solubility study of hydroxyapatite in the presence of Cd(II) and EDTAViipsi, Karin; Tõnsuaadu, Kaia; Sjöberg, StaffanSETAC Europe : 20th Annual Meeting 23-27 May 2010, Seville, Spain : Science and Technology for Environmental Protection : abstract book2010 / p. WE 454
• Surface phase transformations, surface complexation and solubilities of hydroxyapatite in the absence/presence of Cd(II) and EDTAViipsi, Karin; Sjöberg, Staffan; Shchukarev, Andrey; Tõnsuaadu, KaiaApplied geochemistry2012 / p. 15-21 : ill https://doi.org/10.1016/j.apgeochem.2011.08.010 https://www.sciencedirect.com/science/article/pii/S0883292711003842