中文摘要：

在铅笔芯上通过实时沉积锑薄膜,使用方波阳极溶出伏安法（SWASV）对Cd（Ⅱ）和Pb（Ⅱ）进行同时检测.沉积时间为180 s时,Cd（Ⅱ）和Pb（Ⅱ）的最低检测限分别为0.075μg·L-1和0.13μg·L-1,较铋膜修饰的铅笔芯电极低.在低pH值溶液（pH 2.0）中重现性好.该电极可成功用于测定自来水中的Cd（Ⅱ）和Pb（Ⅱ）含量.

英文摘要：

In this paper, a pencil core was used as the substrate for an antimony-film electrode for simultaneous detection of Cd （It） and Pb（II） by square-wave anodic stripping voltammetry （SWASV）. With the deposition time of 180 s, the low limit of detection （LOD） for the electrode was determined to be 0.075 μg·L-1 for Cd（II）, while 0.13 μg·L-1 for Pb（II） with good reproducibility in low pH solutions （pH = 2）. The results show a much lower LOD than that of bismuth-film pencil core electrode. Finally, this antimo- ny-film electrode was successfully applied to determine Cd（Ⅱ） and Pb（Ⅱ） in tap water.