3.3 System Suitability
The system suitability test (SST)
parameters were performed during the
development and optimization of the method
as well as through the validation procedure.
SST parameters including capacity factor (k′),
selectivity (a), resolution (Rs), column efficiency
(number of theoretical plates, N) and tailing
factor (T) listed in Table 1 were established
by ten replicates. All parameters were
satisfactory with good specificity for the
quantitation of benzoic acid and sorbic acid
in noodles. The RSD% values for the
calculated SST parameters for 10 replicates
were less than 2%.