- 作者: Khalil Farhadi,* Farshad Kheiri and Mir Maqsoud Golzan
- 作者服務機構: Department of Chemistry, Faculty of Science, Urmia University, Urmia, Iran
- 中文摘要: Titania sol-gel modified gold electrode (TSGMGE) was prepared with the usage of a new proposed cold deposition method at -10 °C. Scanning electron microscope (SEM) operating at 30 kV was used to obtain micrographs of unmodified and modified electrodes. The obtained results showed that this procedure yields a sol-gel with high porosity in comparison to conventional methods. The modified Au electrode was fabricated by trapping the L-glutamine in titania sol-gel at low temperatures to preparation of a new titania sol-gel glutamine modified gold electrode (TSGGMGE). The possibility determination of traces of Cu(II) in the presence of As(III) was investigated using proposed electrode. Under the optimized conditions, copper was accumulated at -0.35 V (vs. Ag/AgCl) for 40 s in 0.1 M acetate buffer (pH 4.0) in the presence of different amounts of arsenic. Two dynamic linear responses with good reproducibility were observed for copper ions in the concentration range of 1 × 10-6 – 4 × 10-4 M and 4 × 10-8 – 6 × 10-7 M.
- 英文摘要: --
- 中文關鍵字: Titania sol-gel; Cold deposition; Determination; Cu(II); As(III).
- 英文關鍵字: --