Research on gas-phase chemistry for chloride of group-4 elements

Murayama, Hiroshi*; Kojima, Takayuki*; Murakami, Masashi*  ; Goto, Shinichi*; Kudo, Hisaaki*; Tsukada, Kazuaki  ; Asai, Masato  ; Sato, Tetsuya   ; Sato, Nozomi; Nagame, Yuichiro 

For investigation of chemical properties of superheavy element Rf, we have developed an on-line isothermal gas chromatographic apparatus. We performed to optimize experimental conditions for chemical separation and observe on-line isothermal gas chromatographic behavior of volatile chloride compounds of group-4 elements Zr and Hf. The observed overall efficiency which include transportation from a target chamber to the chemical apparatus, chemical efficiency and transportation from the apparatus to a detection site is about 10%. The isothermal gas chromatographic behavior of Zr and Hf were measured precisely.