@article{oai:kumadai.repo.nii.ac.jp:00022212, author = {實政, 勲 and Sanemasa, Isao and Ushizima, Takashi and Hayashida, Teiko and Tochihara, Takuo and 栃原, 拓夫 and Ishibashi, Kazunari and Deguchi, Toshio and 出口, 俊雄 and 實政, 勲 and 実政, 勲 and 牛嶋, 隆士 and 林田, 禎子 and Tochihara, Takuo and 栃原, 拓夫 and 石橋, 和也 and 出口, 俊雄}, issue = {8}, journal = {分析化学}, month = {Aug}, note = {application/pdf, 論文(Article), ポリテトラフルオロエチレン(PTFE)製シールテープ(幅1.3cm、厚み0.1mm、長さ20cm)を浮かべた約500mlの試料水溶液中にクロロホルム蒸気を30分間通気・循環し、その後、ピンセットでテープを取り出し、有機溶媒に浸してテープに捕そくされている溶質を溶離した。溶質として、水銀(II)、鉛(II)、銀(I)及びカドミウム(II)のジチゾン錯体並びにコバルト(II)、ニッケル(II)、カドミウム(II)及び亜鉛(II)のPAN{1-(2-ピリジルアゾ)-2-ナフトール|錯体を用いたところ、良好な捕そく率が得られた。本法は単色法によるジチゾン錯体の定量にも適用できる。カドミウム(II)-PAN錯体ではクロロホルムの代わりにベンゼン蒸気を、又、亜鉛(II)-PAN錯体ではクロロホルム蒸気を1時間通気・循環した。, A PTFE-seal-tape of 20 cm long, 1.3 cm wide and 0.1 mm thick was placed on the surface of an aq. solution of 400 to 500 ml. Chloroform vapor was introduced into the solution and circulated in a closed system for 30 min. Then, the film was picked up and the solute held on it was eluted with CHCl3. As solutes, Hg(II), Pb(II), Ag(I) and Cd(II)-dithizonates and Co(II), Ni(II), Gd(II) and Zn(II)-PAN complexes were used (dithizone: diphenylthiocarbazone; PAN: l-(2-pyridylazo)-2-naphthol). For Cd(II)-PAN benzene vapor was circulated, and for Zn(II)-PAN, CHCl3 vapor was circulated for 1 h. Recoveries of metal dithizonates and PAN complexes were more than 80%. In an acidic solution, free dithizone is collected almost completely by the PTFE film, but can be re- B moved from the film while keeping metal dithizonates on the film by circulating CHCl3 vapor in an alkaline solution. When air or carbon tetrachloride vapor was circulated, metal complexes were not collected by the PTFE film. The PTFE film surface is assumed to be covered with a thin layer of liquid CHCl3 upon circulating CHCl3 vapor in aq. solution. The present method is applicable to solutes with a large chloroform/water partition constant., http://www.jsac.or.jp/bunka/bunsekikagaku.html}, pages = {479--484}, title = {ポリテトラフルオロエチレンフィルムによる水溶液中の無電荷金属錯体の濃縮}, volume = {42}, year = {1993}, yomi = {サネマサ, イサオ and トチハラ, タクオ and デグチ, トシオ and トチハラ, タクオ} }