百度云网盘下载：http://pan.baidu.com/s/1hs34lCw
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: Introduction & Kit Description
Chapter 2: Theory of Assay Procedure
Chapter 3: Standards & Calibration Curves
Chapter 4: Preparation of the Single Point Standard
Chapter 5: Preparation of the Calibration Curve
Chapter 6: Assay Procedure
Chapter 7: Free Sulphite Calculations
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