| Yazarlar |
Dr. Öğr. Üyesi Çiğdem ER ÇALIŞKAN
Ahi Evran Üniversitesi, Türkiye |
Bahire Filiz Şenkal
İstanbul Teknik Üniversitesi, Türkiye |
|
Mehmet Yaman
Türkiye |
| Özet |
| A preconcentration method was developed by using a new aminothioazole-containing sulfonamide resin in solid phase extraction for the determination of lead and nickel in milk and yoghurt samples. The optimisation of experimental conditions was performed. The optimum parameters for Pb and Ni were found to be 3.5, 30 min and 2.5 mL for pH, contact time, eluate volume, respectively. After preconcentration step, atomic absorption spectrometry was used for the determinations. The enhancement of 350- and 50-fold in the sensitivity of Pb and Ni were achieved by combination of the slotted tube atom trap-atomic absorption spectrometry with the optimised preconcentration method, respectively. Limits of detection were found to be 0.15 ng mL(-1) for Pb and 0.75 ng mL(-1) for Ni. The lead concentrations in the studied samples were found to be in the range of 15-61 ng Pb mL(-1) for milk and 21-42 ng Pb g(-1) for yoghurt samples. (C) 2012 Elsevier Ltd. All rights reserved. |
| Anahtar Kelimeler |
| Lead, Nickel, Preconcentration, Aminothioazole-containing sulfonamide resin, Milk, Yoghurt |
| Makale Türü | Özgün Makale |
| Makale Alt Türü | SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale |
| Dergi Adı | FOOD CHEMISTRY (Elsevier BV) |
| Dergi ISSN | 0308-8146 |
| Dergi Tarandığı Indeksler | SCI-Expanded |
| Dergi Grubu | Q1 |
| Makale Dili | İngilizce |
| Basım Tarihi | 04-2013 |
| Cilt No | 137 |
| Sayfalar | 55 / 61 |
| Doi Numarası | 10.1016/j.foodchem.2012.10.013 |
| Makale Linki | http://dx.doi.org/10.1016/j.foodchem.2012.10.013 |
| Atıf Sayıları | |
| Google Scholar | 89 |
