International Journal of Analytical Chemistry / 2013 / Article / Tab 3

Research Article

Titrimetric and Spectrophotometric Methods for the Assay of Ketotifen Using Cerium(IV) and Two Reagents

Table 3

Results of intraday and interday accuracy and precision study.

Method KTF taken
mg/µg mL−1
Intraday accuracy and precision ( )Interday accuracy and precision ( )
KTF found
mg/µg mL−1
RE %RSD %KTF found
mg/µg mL−1
RE %RSD %

A5.005.061.201.805.122.422.90
10.010.121.621.4010.151.512.43
15.014.801.340.9414.721.581.92

B2.02.021.231.722.031.621.18
4.03.961.620.873.941.261.58
6.06.081.331.466.171.900.88

C4.03.940.731.433.951.142.12
6.06.061.061.096.111.841.79
8.07.901.211.187.881.471.09

In method A, KTF taken/found, is in mg and it is µg mL−1 in method B and C.
RE: relative error (%); RSD: relative standard deviation (%).

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