caa a22 4500 469109629 CHVBK 20180323133106.0 cr unu---uuuuu 170328e19920901xx s 000 0 eng 10.1007/BF02039928 doi (NATIONALLICENCE)springer-10.1007/BF02039928 Development of a radiotracer method for measuring CO2 uptake by cement - wood mixtures [Elektronische Daten] [H. Rahimi, L. Baranyai] Radiotracer method was developed for measuring14CO2 content in cement-wood mixtures. The carbon dioxide used for the treatment was labeled with14C, a β-emitting radioisotope, and samples were measured by β-scintillation and liquid scintillation techniques. Test samples were prepared in the laboratory with various compositions and treated with labeled14CO2. The tracer was released from Ba14CO3 by lactic acid with total activity of 37 MBq. Selectivity of the technique allows to distinguish the carbon dioxide bound during the treatment and bound previously from the mbient air. Sensitivity of the method is higher than that of traditional methods and allowed determination of CO2 content in each component of the mixture. It is 63 ng. if measured by β-scintillation detector and 1.6 ng, if measured by liquid scintillation. Accuracy of the method is 0.3%. Akadémiai Kiadó, 1992 Rahimi H. Atomic Energy Organization of Iran, Nuclear Research Center, P.O. Box 11365-8486, Tehran, (Iran) aut Baranyai L. Institute of Isotopes of the Hungarian Academy of Sciences, Budapest, (Hungary) aut Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 83-90 0236-5731 162:1<83 1992 162 10967 https://doi.org/10.1007/BF02039928 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02039928 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Rahimi H. Atomic Energy Organization of Iran, Nuclear Research Center, P.O. Box 11365-8486, Tehran, (Iran) aut NATIONALLICENCE 700 1- Baranyai L. Institute of Isotopes of the Hungarian Academy of Sciences, Budapest, (Hungary) aut NATIONALLICENCE 773 0- Journal of Radioanalytical and Nuclear Chemistry Kluwer Academic Publishers 162/1(1992-09-01), 83-90 0236-5731 162:1<83 1992 162 10967 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer