Research Article

A Standardized Approach to Quantitative Analysis of Nicotine in e-Liquids Based on Peak Purity Criteria Using High-Performance Liquid Chromatography

Table 10

System suitability test.

Replicate injectionAreaUSP tailingUSP plate count

A112996771.418979
A212951911.409211
A312977651.409132
A412945511.409225
A512918961.409194
A612893391.399035
Mean12947371.409129
Std. dev.3768.890.01101.50
%RSD0.290.451.11

Note. No adjacent peaks were observed at the retention time of nicotine. Hence USP resolution criteria is not applicable.