Determination of Trace Metals in Geological Samples by Atomic Absorption Spectrophotometry after Preconcentration by Aspergillus niger Immobilized on Sepiolite.
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- BAG Hüseyin
- Kirikkale Üniversitesi Fen Edebiyat Fakültesi
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- TÜRKER A. Rehber
- Gazi Üniversitesi Fen Edebiyat Fakültesi
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- LALE Mustafa
- Kirikkale Üniversitesi Fen Edebiyat Fakültesi
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Abstract
A method for the determination of Cu, Zn, Fe, Ni and Cd in geological samples by flame atomic absorption spectrophotometry (FAAS) after preconcentrating by Aspergillus niger immobilized on sepiolite has been developed. The column adsorption method was used for the preconcentration studies. Effects of pH, amount of adsorbent, elution solution, flow rate and interfering ions on the recovery of the analytes have been investigated. Recoveries of Cu, Zn, Fe, Ni and Cd on Aspergillus niger immobilized sepiolite were 98.01±0.06%, 98.8±0.5%, 98.0±0.4%, 96.4±0.8% and 94.8±0.6% at 95% confidence level, respectively. The breakthrough capacity of the adsorbent was found as 0.093, 0.078, 0.067, 0.085 and 0.102 mmol/g for Cu, Zn, Fe, Ni and Cd, respectively. The proposed method was applied to the determination of trace metals in geological samples, such as AGV-1, JG-1a and Wismuterz II. Trace metals have been determined with about 5% relative error.
Journal
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- Analytical Sciences
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Analytical Sciences 15 (12), 1251-1256, 1999
The Japan Society for Analytical Chemistry
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Details
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- CRID
- 1390001204257577088
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- NII Article ID
- 130004440008
- 10004708810
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- NII Book ID
- AA10500785
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- COI
- 1:CAS:528:DyaK1MXotFSkur8%3D
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- ISSN
- 13482246
- 09106340
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- NDL BIB ID
- 4952828
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed