From: Development and validation of a headspace GC-MS method to evaluate the interconversion of impurities and the product quality of liquid hand sanitizers
Product A
Product B
Product C
Product D
Active ingredient
Ethanol
Isopropanol
Determined content % (v/v)
80.6%
86.9%
84.4%
85.7%
Impurities above limit
Acetaldehyde 78 ppm
Acetaldehyde 177 ppm
None
Acetal 200 ppm