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中文摘要：
硝酸的合成材料氧化了 multiwalled 碳 nanotube (MWNT ) 和 Nafion 被准备。如此的合成在一个玻璃质的碳电极上被修改由微分搏动的 voltammetry 决定铅的踪迹。在 pH=6.47 NaNO3 答案， Pb2+ 离子在修改电极上被积累在 ? 0.4 V。与相比一赤裸并且一部 Nafion 电影涂的电极，合成涂的 GC 电极能减少积累的潜力并且消除水银的有毒的特性。刻度情节在 5.0 桳潩的低集中是线性的吗？
英文摘要：
A composite material of nitric acid oxidized multiwalled carbon nanotube （MWNT） and Nation was prepared. Such composite was modified on a glassy carbon electrode to determine trace of lead by differential pulsed voltammetry. In pH=6.47 NaNO3 solution, Pb^2＋ ions were accumulated on the modified electrode at -0.4 V. Compared with a bare and a Nation film coated electrode, the composite coated GC electrode can reduce the accumulating potential and eliminate the toxic character of mercury. The calibration plots were linear at low concentration of 5.0× 10^-9-2.0× 10^-8 mol/L and high concentration of 2.5× 10^-8-5.0× 10^-6 mol/L. The performances characteristics indicate that the electrode can be used to determine trace Pb^2＋ ions.
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