黒鉛炉原子吸光法によるタリウムの定量における塩化物干渉の除去

DOI NDLデジタルコレクション Web Site Web Site 被引用文献1件

書誌事項

タイトル別名
  • Removal of chloride interference in the determination of thallium by AAS with a graphite furnace.
  • コクエンロ ゲンシ キュウコウホウ ニ ヨル タリウム ノ テイリョウ ニ オ

この論文をさがす

抄録

Method for removal of the chloride interference in the determination of thallium by AAS with a graphite furnace has been investigated. The chloride interference arises from formation of thallium (I) chloride in the sample solution; this has been confirmed by examine the effects of coexisting chloride concentration and pH of sample solution on the atomic absorption signal of thallium. The ammonium salt of EDTA is very suitable as an additive to remove the chloride interference, since chloride formation of thallium and other cations can be masked by EDTA. Furthermore, the use of this salt yields readily volatile ammonium chloride which can be easily removed from the furnace in drying and ashing steps. In the presence of 0.02M EDTA at pH 10 with ammonia the maximum allowable concentration of coexisting metallic chloride is about 400times larger than in 0.1M nitric acid and 40times than in 0.05M sulfuric acid.

収録刊行物

  • 分析化学

    分析化学 35 (11), 931-934, 1986

    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