International Journal of Analytical Chemistry / 2009 / Article / Tab 5

Research Article

New Sensitive Kinetic Spectrophotometric Methods for Determination of Omeprazole in Dosage Forms

Table 5

Evaluation of the accuracy of the proposed initial rate and fixed time methods for determination of OMZ.

MethodAmount taken Recovery ( ± RSD
Initial rate methodFixed time method

Iodine0.5099.50 ±1.95100.40 ±0.94
1.5098.80 ±1.0899.80 ±0.25
3.0099.70 ±1.5598.50 ±0.42

DDQ2.0098.60 ±1.4599.60 ±1.84
10.0098.90 ±0.95100.80 ±0.75
20.00100.30 ±0.75100.20 ±1.25

Recovery was calculated as the amount found/amount taken . Values are mean ± RSD for five determinations.

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