Zendelovska, Dragica and Stafilov, Trajče and Boev, Blazo (1999) Determination of Zn, Mn and Fe in some minerals by atomic absorption spectrometry. Geologica Macedonica. ISSN O352-1206
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Abstract
A rapid and simple method for the determination of iron, manganese and zinc in some sulfide (galena and sphalerite), carbonate (siderite, aragonite) and sulfate (gypsum) minerals is based on atomic absorption spectrometry. The samples were dissolved in mixture of HN03 and HCI. The effects of interfering elements (pb, Zn, Ca and Fe) on the determination of Fe, Mn and Zn in the investigated minerals were studied. These investigations show that it is possible to determine iron, manganese and zinc directly from solutions obtained by dissolution of minerals in mineral acids (HCl and HN03), except in the case of determination of manganese in calcium matrices. It was found that the presence of calcium tends to decrease the absorbance of manganese. Procedures were verified by the method of standard additions and results were compared with those obtained by inductively coupled plasma-atomic emission spectrometry (ICP-AES). It was also found that the detection limit for all investigated elements in minerals is 2 Ilgog-i for Zn and 5 Ilgog-i for Mn and Fe. Investigated minerals originate from different mines from the Republic of Macedonia.
| Item Type: | Article |
|---|---|
| Subjects: | Natural sciences > Other natural sciences |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Blazo Boev |
| Date Deposited: | 03 Dec 2012 11:41 |
| Last Modified: | 27 Jun 2013 08:21 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/2871 |
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