Analysis of Hydroxyl Value of Polypropylene Glycol Using the PLS Method in Near-Infrared Spectroscopy

Introduction

Application News No.A381 introduce examples of iodine value quantitation using near-infrared spectroscopy (NIR) and the PLS method. The NIR for oil and fat substances is promising when applied in the quantitation of acid value, hydroxyl value, saponification value, ester value, etc. This issue introduces examples of the quantification of the hydroxyl value of polypropylene glycol.

April 27, 2006 GMT