Selective Preconcentration of Gold from Ore Samples
A simple and selective method has been developed for preconcentration of gold in ore samples. The method is based on use of N, N-diethyl-N’-benzoylthiourea (DEBT) as selective chelating agent and Amberlite XAD-16 as solid sorbent. Sorption behavior of gold with DEBT impregnated resin under optimized...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Analytical Chemistry |
| Online Access: | http://dx.doi.org/10.1155/2018/7503202 |
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| author | Hurmus Refiker Melek Merdivan Ruveyde Sezer Aygun |
| author_facet | Hurmus Refiker Melek Merdivan Ruveyde Sezer Aygun |
| author_sort | Hurmus Refiker |
| collection | DOAJ |
| description | A simple and selective method has been developed for preconcentration of gold in ore samples. The method is based on use of N, N-diethyl-N’-benzoylthiourea (DEBT) as selective chelating agent and Amberlite XAD-16 as solid sorbent. Sorption behavior of gold with DEBT impregnated resin under optimized conditions has been studied in batch process. The gold ion capacity of the impregnated resin is calculated as 33.48 mg g−1 resin (0.17 mmol g−1 resin). The selective preconcentration of metal was examined using gold chelates prepared in column process under optimized conditions: pH, flow rate, volume of sample solution, nature of eluent, flow rate, and volume of eluent. Under optimum conditions, gold ions at the concentration of 0.015 μg mL−1 with a preconcentration factor of 6.7 have been determined by flame atomic absorption spectrometry (FAAS). The accuracy of the proposed method was validated by the analysis of a Cu-ore (semi-certified) supplied by CMC (Cyprus Mining Company, North Cyprus) and a certified reference material, Gold Ore (MA-1b Canmet-MMSL). Satisfactory results were obtained with a RSD of 7.6%. The highly selective proposed method does not require any interference elimination process. |
| format | Article |
| id | doaj-art-2b1898c15b3946c4b4509ae46ac1c7b3 |
| institution | Kabale University |
| issn | 1687-8760 1687-8779 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Analytical Chemistry |
| spelling | doaj-art-2b1898c15b3946c4b4509ae46ac1c7b32025-02-03T01:28:40ZengWileyInternational Journal of Analytical Chemistry1687-87601687-87792018-01-01201810.1155/2018/75032027503202Selective Preconcentration of Gold from Ore SamplesHurmus Refiker0Melek Merdivan1Ruveyde Sezer Aygun2Department of Chemistry, Middle East Technical University, Ankara, TurkeyDepartment of Chemistry, Dokuz Eylul University, Izmir, TurkeyDepartment of Chemistry, Middle East Technical University, Ankara, TurkeyA simple and selective method has been developed for preconcentration of gold in ore samples. The method is based on use of N, N-diethyl-N’-benzoylthiourea (DEBT) as selective chelating agent and Amberlite XAD-16 as solid sorbent. Sorption behavior of gold with DEBT impregnated resin under optimized conditions has been studied in batch process. The gold ion capacity of the impregnated resin is calculated as 33.48 mg g−1 resin (0.17 mmol g−1 resin). The selective preconcentration of metal was examined using gold chelates prepared in column process under optimized conditions: pH, flow rate, volume of sample solution, nature of eluent, flow rate, and volume of eluent. Under optimum conditions, gold ions at the concentration of 0.015 μg mL−1 with a preconcentration factor of 6.7 have been determined by flame atomic absorption spectrometry (FAAS). The accuracy of the proposed method was validated by the analysis of a Cu-ore (semi-certified) supplied by CMC (Cyprus Mining Company, North Cyprus) and a certified reference material, Gold Ore (MA-1b Canmet-MMSL). Satisfactory results were obtained with a RSD of 7.6%. The highly selective proposed method does not require any interference elimination process.http://dx.doi.org/10.1155/2018/7503202 |
| spellingShingle | Hurmus Refiker Melek Merdivan Ruveyde Sezer Aygun Selective Preconcentration of Gold from Ore Samples International Journal of Analytical Chemistry |
| title | Selective Preconcentration of Gold from Ore Samples |
| title_full | Selective Preconcentration of Gold from Ore Samples |
| title_fullStr | Selective Preconcentration of Gold from Ore Samples |
| title_full_unstemmed | Selective Preconcentration of Gold from Ore Samples |
| title_short | Selective Preconcentration of Gold from Ore Samples |
| title_sort | selective preconcentration of gold from ore samples |
| url | http://dx.doi.org/10.1155/2018/7503202 |
| work_keys_str_mv | AT hurmusrefiker selectivepreconcentrationofgoldfromoresamples AT melekmerdivan selectivepreconcentrationofgoldfromoresamples AT ruveydesezeraygun selectivepreconcentrationofgoldfromoresamples |