Determination of Cu,Co and Pb in gasoline by electrothermal atomic absorption spectrometry using aqueous standard addition in gasoline–ethanol–water three-component system |
| |
| Affiliation: | 1. Department of Earth and Environmental Engineering, Columbia University, New York, NY 10027, USA;2. Energy Technology Division, RTI International, Durham, NC 27709, USA;1. Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, El-Kasr El-Aini Street, ET-11562 Cairo, Egypt;2. Chemistry Department, Faculty of Pharmacy, October 6 University, 6 October City 12585, Egypt;3. Analytical Chemistry Department, Faculty of Pharmacy, Modern Technology and Information University, Cairo, Egypt |
| |
| Abstract: | Single phase gasoline–ethanol–water mixture was prepared for performing standardization with aqueous standards and for the elimination of difficulties with pipetting of gasoline. Standard addition calibration method was applied to the determination of Cu, Pb and Co in gasoline by electrothermal atomic absorption spectrometry. Good agreements were found for the analysis results of the present “direct” method compared with those obtained by digesting gasoline in microwave furnace with nitric acid. The limit of detection values were 1.5 μg kg−1 Co, 2.5 μg kg−1 Cu and 4.0 μg kg−1 Pb in original gasoline samples. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
