Selective Ion Flotation Separation and Concentration of Ultra Trace Amounts of Bismuth Using Arsenazo III and Its Determination by Inductively Coupled Plasma-Atomic Emission Spectrometry
| Autor: | Rahim Hassani, Mojtaba Shamsipur, Reza Davarkhah, Ali Reza Khanchi |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Detection limit
Aqueous solution Process Chemistry and Technology General Chemical Engineering Analytical chemistry chemistry.chemical_element Filtration and Separation Arsenazo III General Chemistry Ion Bismuth chemistry.chemical_compound chemistry Bromide Inductively coupled plasma Froth flotation |
| Zdroj: | Separation Science and Technology. 45:1340-1345 |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496391003684463 |
| Popis: | A rapid, selective, and highly sensitive froth flotation method for the separation and enrichment of ultra trace amounts of bismuth is developed. The bismuth-Arsenazo III complex is concentrated from 1000 mL of aqueous solution into the scum in the presence of cetyltrimethylammonium bromide (CTAB) as a cationic surfactant. The proposed procedure of pre-concentration is applied prior to the determination of bismuth using inductively coupled plasma–atomic emission spectrometry (ICP-AES). Effects of Arsenazo III concentration, pH, CTAB concentration, and foreign ions have been studied. The proposed method possesses a pre-concentration factor of 500 and a detection limit of 0.28 ng mL−1. |
| Databáze: | OpenAIRE |
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