Investigation on Possible Acid and Cation Interference in the Determination of Copper by Atomic Absorption Spectroscopy in an Air-acetylene Flame
| Main Authors: | MOSTAFA M. EMARA, NAZIK A. PARID, MONIR M. ALI, ABD BL-AZIZ GHARIB |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1978
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6383778 |
Daftar Isi:
- Department of Chemistry, Faculty of Science. Al-Azhar University, Nasr City, Cairo, Egypt Manuscript received 6 August 1977, revised 17 May 1978, accepted 10 August 1978 The atomic absorption technique is used for copper analysis under wide expert. mental as well as instrumental conditions. The analysis took place in pure acidic media such as HCI, HNO3, H2SO4, HCIO4 and H2PO4. It was found that the best acidic media for copper analysis is 2% HClO4, using one slot burner head at 1 cm height of optimum flame. Also the effect of added cations such as Na, K, Ca, Mg and Al on the analysis of Cu was carried out in HCIO4 media. No interference was observed up to 10000 ppm of these added cations. If Fe is present interference in analysis of Cu is observed. This latter interference can be cured by adding specific amount of H3PO4, to minimize almost all of it.