On-line electrolytic dissolution for soluble aluminium determination in high-silicon steel/electrical sheet by ED-FIA-ICP-OES
| Autor: | Sebastian Braas, Eckhard Pappert, Thomas Lostak, Jörg Flock, Jürgen Schram |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Flow injection analysis
Silicon Chemistry 020209 energy Analytical chemistry chemistry.chemical_element 02 engineering and technology engineering.material Analytical Chemistry Aluminium Inductively coupled plasma atomic emission spectroscopy 0202 electrical engineering electronic engineering information engineering engineering Sample preparation Inductively coupled plasma Dissolution Electrical steel |
| Zdroj: | Talanta. 189:489-493 |
| ISSN: | 0039-9140 |
| Popis: | Soluble aluminium (Al(sl)) in high silicon alloys is determined by electrolytic dissolution flow injection analysis (ED-FIA) and inductive coupled plasma with optical emission spectrometry (ICP-OES). Skipping the time consuming sample preparation known from acid hydrolysis reduces the required time per determination from 15 to 4 min. A new calculation procedure is used to compensate the discrepancy in matters of dissolution between acid hydrolysis and electrolytic dissolution. Samples with a known silicon content (2,5 and 3,1 wt%) are used to determine the differences of dissolved material and to calculate a correction factor. In a working range of 200–350 ppm aluminium in high silicon steel, there is a standard deviation of 7 ppm for a measurement series of 19 samples (max deviation 19 ppm). |
| Databáze: | OpenAIRE |
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