中文摘要：

利用正交实验法来进行最佳实验条件的确定，得到纯化单层碳纳米管的最佳条件为：焙烧的时间为45min，离心的速度为12000r/min，时间为45min，超声时间为45min．

英文摘要：

In this article, the optimized conditions to purify single - walled carbon nanotubes were determined using the orthogonal test method as follows： calcinations time of 45 min, centrifugal speed1200r/min for 45min, ultrasonic time of 45min.