96/03390 - Electrothermal atomic absorption spectrometric determination of cadmium in coal fly ash
โ Scribed by S.S. Bhattacharyya
- Publisher
- Elsevier Science
- Year
- 1996
- Weight
- 169 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0140-6701
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Electrothermal atomic absorption spectrometry (ETA-AAS) of potassium in biological materials with a molybdenum tube atomizer has been investigated. The atomization characteristics of potassium on the atomizer are demonstrated. The optimal gas flow rate was \(400 \mathrm{ml} \mathrm{min}^{-1} \mathrm
## Electrothermal atomic absorption spectrometry (ETAAS) of sdver with a molybdenum tube atomizer was mvestlgated Hydrogen was added to the argon purge gas to protect the metal atomizer from oxldatlon by trace oxygen m the atomizer chamber The optimum gas flow-rates were argon 480 ml mu-' and hydr
For determination of trace elements in coal by wet chemical methods, the decomposition reaction with nitric acid under elevated pressure was investigated. In the case of carbon-rich fly-ash, it was necessary to add hydrofluoric acid. Treatment for 20 h at about 140ยฐC was sufficient for complete demi
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