グラファイト炉原子吸光法における有機溶媒の影響

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
  • Effect of organic solvent in graphite furnace atomic absorption spectrometry
  • グラファイトロ ゲンシ キュウコウホウ ニ オケル ユウキ ヨウバイ ノ エイ

この論文をさがす

抄録

The combined use of organic solvent extraction and graphite furnace atomic absorption spectrometry is useful for removal of matrix interferences. But the precision tends to lower because of vaporization of organic solvent. In the use of an autosampler, vaporization of organic solvent causes error owing to long standing time before measurement in treating many samples. Copper-, lead-, and cadmium-diethyldithiocarbamates were investigated in various organic solvents. Absorbance of copper in methyl isobutyl ketone and chloroform increased with the standing time more than 30 min. To prevent the vaporization of organic solvent, the equilibrated aqueous solution or water was placed on the top of the organic solvent such as chloroform or carbon tetrachloride. By this method, the absorbance of metal in organic solvent, chloroform or carbon tetrachloride, did not increase for period up to 4 h. The use of an autosampler improved the precision, especially in the case of chloroform and carbon tetrachloride. The precision in organic solvent was comparable with that in aqueous standard solution.

収録刊行物

  • 分析化学

    分析化学 28 (8), 495-497, 1979

    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