クロム(III)イオンのフェロシアン化カリウムとの呈色反応によるペーパークロマトグラフィー

DOI Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • Qualitative paperchromatographical analysis of Cr<SUP>3+</SUP> ion, utilizing color-reaction between Cr<SUP>3+</SUP> and K<SUB>4</SUB> [Fe(CN)<SUB>6</SUB>]
  • クロム III イオン ノ フェロシアンカ カリウム ト ノ テイショク ハンノウ ニ ヨル ペーパー クロマトグラフィー

この論文をさがす

説明

Although no distinct color appeared immediately after spraying K4 [Fe(CN)6] solution on Cr3+ spot on a filter paper, a clear yellow coloration appeared ca. 3 hrs. later and it was stable for several days.<BR>Combining this color reaction with the paper-chromatographical development, the authors identified Cr3+ discriminating it from Ag+, Hg2+, Sn4+, Sb3+, Bi3+, As3+, Zn2+, Cd2+, Fe3+, Cu2+, Co2+, Pb2+, Mn2+, Ni2+, Al3+, Mg2+, Ca2+, Sr2+, Ba2+, Li+, NH4+, Na+, K+ and CrO42-. The Rf values as well as the difference in the coloration on spraying K4 [Fe(CN)6] for those ions were tabulated (Table I).<BR>As the solvent for development, acetone-hydrochloric acid mixture (anhydrous acetone-35% hydrochloric acid-water, 10 : 1 : 0.5 by volume) or methanol-hydrochloric acid mixture (methanol-35% hydrochloric acid, 10 : 3 by volume) was recommended. The minimum detectable amount of Cr3+ was about 5 μg.<BR>The sensitivity not much inferior to that of the conventional diphenylcarbazide method and the simplicity in the procedure together with the stability of the coloration make this color test much reliable.<BR>Care must be taken to dry up the filter paper thoroughly before spraying the reagent in order to remove the remaining hydrochloric acid, since a satisfactory color reaction could not be expected at low pH levels.

収録刊行物

  • 分析化学

    分析化学 12 (7), 608-611, 1963

    公益社団法人 日本分析化学会

被引用文献 (1)*注記

もっと見る

キーワード

詳細情報 詳細情報について

問題の指摘

ページトップへ