Research Article

Utility of p-Chloranilic Acid and 2,3-Dichloro-5,6-dicyano-p-benzoquinone for the Spectrophotometric Determination of Rizatriptan Benzoate

Table 4

Robustness and ruggedness.

Method
RTB taken, μg mL−1Method robustnessMethod robustness
Parameter altered
Reagent volume, mLaInteranalysts
Intercuvettes
RSD, % ( = 3)RSD, % ( = 4)RSD, % ( = 4)

Method A70.00.91.71.5
140.01.31.31.2
210.01.01.11.3

Method B20.01.01.01.6
40.01.11.51.6
60.01.41.61.4

aVolumes of reagent were 1 ± 0.1 mL.