Pb~(2+) and Cu~(2+) adsorped on the PTFE fiber Could be also desorbed by 1N HNO_3 and HC1. And this process showed the fiber is easy to desorp and can be used repeatly.

• 又以1N的HNO_3和1N的HCl分别对吸附了两种离子的纤维进行解吸,表明该纤维易于解吸,容易再生,而且重复使用性能良好。