The RSD of the intra-day variability ranged from 0.38 to 1.82%
for 22 fatty acid methyl esters standards, while the RSD of the interday
variability ranged from 2.19% to 5.67% (Table 1). Koning, Meer,
Alkema, Janssen, and Brinkman (2001) reported a GC method for
the separation of fatty acids in fish oil, in which the RSD of
variability were in the range of 1.5%-11%. These values confirmed
the precision of our new GC method.