2,4,6-トリ-2-ピリジル-1,3,5-トリアジン担持活性炭を用いる吸着分離/黒鉛炉原子吸光法による微量ルテニウムの定量

書誌事項

タイトル別名
  • Preconcentration of ruthenium on activated carbon impregnated with 2,4,6-tri-2-pyridyl-1,3,5-triazine/graphite furnace AAS.
  • 2,4,6‐トリ‐2‐ピリジル‐1,3,5‐トリアジン担持活性炭を用いる吸着分離/黒鉛炉原子吸光法による微量ルテニウムの定量
  • 2 4 6 トリ 2 ピリジル 1 3 5 トリアジン タンジ カッセイタン

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抄録

Ruthenium is adsorbed on activated carbon impregnated with 2, 4, 6-tri-2-pyridyl-1, 3, 5-triazine (TPTZ-AC). A simple and rapid determination method for trace amounts of Ru by graphite furnace AAS using direct heating of Ru adsorbed TPTZ-AC was investigated.The proposed method is as follows. A sample solution of 1001000cm3 containing Ru is mixed with 50 mg of TPTZ-AC. The pH is then adjusted to 7.0 with phosphate buffer solution, and stirred for 10 min. The Ru adsorbed TPTZ-AC was separated from the sample solution by filtration. The TPTZ-AC on membrane filter is dispersed in 5.0cm3 water.After shaking, 10 μl of the resulting suspension is injected directly into the graphite furnace. The absorbance is measured at 349.9nm. The pyrocarbon treated graphite tube was most efective for the measurement of Ru. The calibration curve was liner below 2.5 μg/100cm3 (aqueous phase). The determination limits(3σ)were 0.08 μg/100cm3 (aqueous phase). The presence of such as Cu, Ni did not interfere. Interference by Fe could be masked by adding thiourea and 1, 10-phenanthroline and ammonium fluoride. The proposed method was applied to the determination of Ru in several water samples.

収録刊行物

  • 分析化学

    分析化学 45 (10), 921-926, 1996

    公益社団法人 日本分析化学会

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