ADSORPTION OF SILVER, GOLD, AND PLATINUM FROM AQUEOUS SOLUTIONS BY CARBONACEOUS MATERIALS

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概要

• 論文の詳細を見る

• Adsorption behavior was studied of microgram amounts of silver, gold, and platinum by activated carbon, carbon black, graphitized carbon black, and graphite from hydrochloric and nitric acid solutions. After adsorption, the adsorbent was ashed in the presence of an alkali-metal salt. The three metals were then determined by electrothermal atomic absorption spectrophotometry. Activated carbon and carbon black are excellent adsorbents for gold. Phenomena that might be termed "coadsorption" of silver or platinum were observed. Less than 3 μg of silver, more than 1 μg of gold, and more than 30 μg of platinum could be satisfactorily collected from 100 ml of 0.05 M hydrochloric acid solution by 100 mg of activated carbon. Many metal ions and several salts do not interfere. The proposed procedure was applied to the determination of traces of gold in siicate ores.

• 社団法人日本分析化学会の論文
• 1983-05-05

著者

• Koshima Hideko

  University Of Tsukuba

• ONISHI Hiroshi

  University of Tsukuba

関連論文

• PRECONCENTRATION OF ORGANOPHOSPHORUS PESTICIDES FROM AQUEOUS SOLUTIONS WITH GRAPHITIZED CARBON BLACK COLUMN
• ADSORPTION OF SILVER, GOLD, AND PLATINUM FROM AQUEOUS SOLUTIONS BY CARBONACEOUS MATERIALS
• COLLECTION OF MERCURY FROM AQUEOUS SOLUTIONS WITH CARBONACEOUS MATERIALS

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