High temperature annealing of the pickled sample, followed by secondary pickling desorption, has been attempted for further refining. 并尝试在此后进行高温退火以再次造成表面扩散偏聚，然后继以二次酸洗去吸附除杂。
Experiments indicate that acetone exhibits the best degreasing effect and that well-arranged porous anodic alumina film is obtained without annealing and electropolishing. 实验结果表明，采用丙酮除油效果最好，不经高温退火和电化学抛光仍能得到高度有序的多孔阳极氧化铝膜，使制备工艺得到了简化。
