将该电极放置冰箱保鲜层中，每隔一周取出进行循环伏安扫描，结果如图6所示

The electrode was placed in the fresh-keeping layer of the refrigerator, and taken out every other week for cyclic voltammetric scanning. The results are shown in Figure 6. From Figure 8, it can be seen that the electrode current dropped by less than 3% from the first week to the fourth week. After weeks, the response current of the modified electrode decreased sharply, but by the eighth week, the response current decrease rate was still within 20%. This shows that the electrode has good stability.

Place the electrode in the refrigerator preservation layer, every other week to remove for a circular VU scan, the results shown in Figure 6, as shown in Figure 8, the first week to the fourth week of the electrode current decreased by less than 3%, after the fourth week modified electrode response current decline is more severe, but by the eighth week, its response current rate is still within 20%. It can be seen that the electrode has good stability.

将该电极放置冰箱保鲜层中，每隔一周取出进行循环伏安扫描，结果如图6所示，由图8可知，第一周到第四周电极的电流下降了低于3%，第四周之后修饰电极的响应电流下降情况较为剧烈，但到第八周，其响应电流的下降率仍在20%以内。由此可见该电极具有良好的稳定性。<br>