- Application of the ion chromatography for the speciation of the sample components in atom absorption spectroscopyKaljurand, Mihkel; Viitak, Anu; Treumann, Maili; Hödrejärv, HelviChimia1998 / 7/8, p. 343
- Application of the ion chromatography for the speciation of the sample components in atom absorption spectroscopyKaljurand, Mihkel; Viitak, Anu; Treumann, Maili; Jakovleva, Irina; Hödrejärv, Helvi23rd Estonian Chemistry Days : abstracts of scientific conference1997 / p. 46
- High-accuracy reference standards for quantitative two-photon absorption spectroscopy = Kõrgtäpsusega standardid kvantitatiivses kahefootonses neeldumisspektroskoopiasReguardati Di Castelfranco, Sophie De2017 https://digi.lib.ttu.ee/i/?8432
- Impact of seasonal climate change on optical and molecular properties of river water dissolved organic matter by HPLCLepane, Viia; Väli, Anna-Liisa; Suursööt, KristelThe 17th Meeting of the International Humic Substances Society : book of abstracts : Ioannina, Greece 1-5 September 20142014 / p. 34-35 : ill
- Ioonkromatograafia kasutamine proovi spetsifitseerimiseks aatomabsorptsioonspektroskoopiasKaljurand, Mihkel; Viitak, Anu; Treumann, Maili; Jakovleva, Irina; Hödrejärv, HelviXXIII Eesti keemiapäevad : teaduskonverentsi ettekannete referaadid1997 / lk. 41
- The atomic absorption spectrometry of main and trace metals in siliceous soilHödrejärv, Helvi; Vaarmann, Aini; Viitak, Anu; Treumann, MailiChimia1998 / 7/8, p. 383