Zinc isotopes were fractionated using liquid chromatography with a polymer stationary cryptand(2 B ,2,2) phase. The breakthrough operation was performed at 293 or 313 K with a feed solution of concentrated ZnCl 2 in HCl. In the front end of the elution curve, a mass-dependent isotope e †ect was predominantly observed. A mass-independent isotope e †ect appeared with increase of the concentration of zinc in the effluent. The mass-independent isotope e †ect was well explained by using nuclear size and shape and nuclear spin e †ects. In the middle of the elution curve, the nuclear mass e †ect and the Ðeld shift e †ect were calculated separately. The Ðeld shift e †ect was 1.1È1.3 times as large as the nuclear mass e †ect in absolute value and showed the opposite sign.
For the assessment of Fukushima Daiichi Nuclear Power Plant accident, the applicability of the thermal ionization mass spectrometry (TIMS), which is a type of mass spectrometry, was studied. For the study of the recovery/analysis method of cesium and strontium, at first, the radioactive cesium and strontium were generated by the irradiation of natural uranium at KUR. After this study, the applicability of this method to the environmental samples obtained in Fukushima prefecture was verified.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.