百度云网盘下载：http://pan.baidu.com/s/1milLiZm
DVDs can be requested free of charge by simply adding a note to your online order.
To choose a chapter, play the video and select the required chapter from the options on the video display.
Chapter 1: Decolourisation of Strongly Coloured Samples
Chapter 2: Deproteinisation of Samples with Carrez Reagents
Chapter 3: Deproteinisation of Samples with Perchloric Acid
Chapter 4: Removal of Reducing Sugars by Borohydride Treatment
