Determination of As, Cd, and Pb in Tap Water and Bottled Water Samples by Using Optimized GFAAS System with Pd-Mg and Ni as Matrix Modifiers
| Autor: | Abdullah Karaca, Nihan Tirik, Onur Maruldalı, Mehmet Demiroz, Sezgin Bakırdere, A. Kemal Fidan, Tolga Yaroglu |
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| Přispěvatelé: | OMÜ, Çukurova Üniversitesi, Uludağ Üniversitesi/Karacabey Meslek Yüksekokulu., Demiröz, Mehmet |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Biochemistry & molecular biology
Limit of detection Analytical chemistry Satisfaction Turkey (republic) Analytical Chemistry Matrix (chemical analysis) Nickel Graphite furnace atomic absorption spectrometry lcsh:QC350-467 Magnesium Fluid intake Lead concentration Drinking-water Accuracy Spectroscopy Cancer Cadmium Neuronal apoptosis Chemistry Temperature Particle size Water sampling Bottled water Atomic and Molecular Physics and Optics Certified reference materials Detection limits Preconcentration Sensitivity analysis Palladium lcsh:Optics. Light Optimization Article Subject Matrix modifier Matrix attachment region chemistry.chemical_element Biochemical research methods Atomic absorption spectrometry Article Arsenic Certified values Contamination Tap water Solid-phase extraction Optimized conditions Chromatography Matrix modifiers Atomic-absorption-spectrometry Flames Histidine Furnaces Trace element Trace analysis Soft drinks Lead Trace metal Concentration (parameters) Reference material Graphite furnace atomic absorption Controlled study |
| Zdroj: | Journal of Spectroscopy, Vol 2013 (2013) |
| DOI: | 10.1155/2013/824817 |
| Popis: | Arsenic, lead, and cadmium were determined in tap and bottled water samples consumed in the west part of Turkey at trace levels. Graphite furnace atomic absorption spectrometry (GFAAS) was used in all detections. All of the system parameters for each element were optimized to increase sensitivity. Pd-Mg mixture was selected as the best matrix modifier for As, while the highest signals were obtained for Pb and Cd in the case of Ni used as matrix modifier. Detection limits for As, Cd, and Pb were found to be 2.0, 0.036, and 0.25 ng/mL, respectively. 78 tap water and 17 different brands of bottled water samples were analyzed for their As, Cd, and Pb contents under the optimized conditions. In all water samples, concentration of cadmium was found to be lower than detection limits. Lead concentration in the samples analyzed varied between N.D. and 12.66 ± 0.68 ng/mL. The highest concentration of arsenic was determined as 11.54 ± 2.79 ng/mL. Accuracy of the methods was verified by using a certified reference material, namely, Trace Element in Water, 1643e. Results found for As, Cd, and Pb in reference materials were in satisfactory agreement with the certified values. © 2013 Sezgin Bakirdere et al. |
| Databáze: | OpenAIRE |
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