Preconcentration and determination of titanium in tap water, geological and sunscreen cream samples by CPE-FAAS method
| Autor: | Masoud Gohari, Ardeshir Shokrollahi |
|---|---|
| Jazyk: | angličtina |
| Předmět: |
Cupferron
Analyte Trace Amounts Coprecipitation Pharmaceutical Science Medicine (miscellaneous) Atomic absorption spectrometry 010402 general chemistry 01 natural sciences law.invention chemistry.chemical_compound Cloud point extraction Tap water law Triton X-114 Detection limit Titanium Chromatography Chemistry 010401 analytical chemistry Agricultural and Biological Sciences (miscellaneous) 0104 chemical sciences Linear range Atomic absorption spectroscopy |
| Zdroj: | Beni-Suef University Journal of Basic and Applied Sciences. (4):350-355 |
| ISSN: | 2314-8535 |
| DOI: | 10.1016/j.bjbas.2016.11.007 |
| Popis: | In the presented research, a cloud-point extraction method has been used for the preconcentration of trace amounts of Ti(IV) after complex formation with cupferron (phenyl-nitroso-hydroxylamine ammonium) using Triton X-114 as the surfactant. The chemical variables affecting the phase separation and the signal of flame atomic absorption spectrometry were optimized. At pH = 3.0, preconcentration of the analyte content sample in the presence of 0.07% (w/v) Triton X-114 and 8.6 × 10 −5 M cupferron enabled the detection limit (3S b /m) of 0.01 µg/mL Ti(IV) and linear range 0.03–3.00 µg/mL to be achieved. The enhancement factor and preconcentration factor were 37 and 30 respectively. The relative standard deviation by repeated assays of six separate solution of 0.67 µg/mL Ti(IV) was also obtained 3.9%. The proposed method was applied to the determination of Ti(IV) in tap water, sand, feldspar, and sunscreen cream. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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