原子吸光分析法による石炭・コークス中の亜鉛及びニッケル定量における前処理方法の検討

概要

論文の詳細を見る
For determination of zinc and nickel in coal and coke by atomic absorption spectrophotometry the three following decomposition methods were applied ; the high temperature ash method by electric furnace, the low temperature ash method by plazma asher, and the wet dissolution method with hydrofluoric acid, nitric acid and perchloric acid. Comparison of the three methods was made in terms of volatility losses. It was found that the amount of zinc observed was smaller by the high temperature ash method or the low temperature ash method than the amount by the wet dissolution method, while the amounts of nickel observed by each method were almost the same. The experimental results indicated that zinc had significant losses during the incineration process but nickel had not. This was confirmed by the absorption of the generated gas on the incineration process. It is concluded that the wet dissolution method is the most suitable among the three for the determination.
社団法人日本分析化学会の論文
1977-12-05