Alcohol Determination of Sanitizer Gel in accordance with USP

United States Pharmacopeia (USP) General Chapters <611> ALCOHOL DETERMINATION stipulates two analytical methods for quantitating ethanol: one with distillation and the other by gas chromatography. The latter (i.e. USP <611> Method II) further gives an option of either using a packed column (Method II a) or a capillary column (Method II b).
This article introduces a quantitative analysis of ethanol in alcohol-based sanitizer gel according to USP <611> Method II b.

Sample Preparation Method