International Journal of Analytical Chemistry / 2009 / Article / Tab 4

Research Article

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

Table 4

Analytical parameters for the proposed fixed time methods for determination of OMZ.

MethodTimeRange SlopeInterceptLODLOQ
(min)( )(b) ± SD(a) ± SD( )( )

Iodine51.50–12.000.99150.0751 ±0.00490.0226 ±0.00950.421.27
150.50–6.000.99550.1589 ±0.00170.0060 ±0.00730.150.46
250.40–5.000.99920.2198 ±0.00440.0064 ±0.00850.130.39
350.30–4.000.99950.2649 ±0.00420.0323 ±0.00610.080.23
450.10–3.000.99900.3069 ±0.00670.0693 ±0.00320.030.10

DDQ110.00–120.000.99820.0065 ±0.00020.0013 ±0.00653.289.94
25.00–60.000.99920.0155 ±0.00010.0097 ±0.00280.591.80
33.00–40.000.99930.0249 ±0.00060.0246 ±0.00360.481.45
42.50–30.000.99920.0320 ±0.00070.0305 ±0.00170.180.53
50.60–25.000.99980.0366 ±0.00040.0299 ±0.00210.190.57

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