Kamal M M, Zuhri A Z, Nasser A A
Department of Chemistry, Faculty of Science, UAE University, PO Box 17551, Al-Ain, United Arab Emirates.
Anal Bioanal Chem. 1996 Dec;356(8):500-3. doi: 10.1007/s0021663560500.
The redox behaviour of adsorbed species of 2,4,6-tri(2'-pyridyl)-1,3-5-triazine (TPTZ) at the surface of a mercury electrode was examined using cycling voltammetry. Based on the adsorption and accumulation of TPTZ at the charged mercury surface cathodic adsorptive stripping voltammetry (CSV) is applied for the trace determination of TPTZ using a differential pulse (DP) technique. Experimental and operational parameters for the quantitative analysis of TPTZ are optimized and the detection limit was found to be 3x10(-9) mol/l. The effect of some interferences, e.g. organic compounds, cations and anions, are investigated.
采用循环伏安法研究了2,4,6-三（2'-吡啶基）-1,3,5-三嗪（TPTZ）在汞电极表面吸附物种的氧化还原行为。基于TPTZ在带电汞表面的吸附和积累，采用微分脉冲（DP）技术的阴极吸附溶出伏安法（CSV）用于TPTZ的痕量测定。优化了TPTZ定量分析的实验和操作参数，检测限为3×10⁻⁹ mol/l。研究了一些干扰物的影响，如有机化合物、阳离子和阴离子。
