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Table 4 Standard addition technique for Gast-reg® 200 mg tablets, ampoules, and suspension by the proposed UV-spectrophotometric methods

From: Different aspects in manipulating overlapped spectra used for the analysis of trimebutine maleate and structure elucidation of its degradation products

Standard addition techniqueDWD2RDCC-SS
 Taken (μg/mL)Added (μg/mL)Found (μg/mL)Recovery % of addedFound (μg/mL)Recovery % of addedFound (μg/mL)Recovery % of addedFound (μg/mL)Recovery % of added
Standard addition of Gast-reg® 200 mg tablets (Batch No.: 162912)20.0010.0010.12101.2010.03100.309.9799.709.9499.40
20.0020.06100.3020.16100.8019.8699.3019.9099.50
30.0030.19100.6329.9499.8030.24100.8030.05100.16
Mean100.71100.3099.9399.69
± SD0.460.500.780.41
Standard addition of Gast-reg® ampoules (Batch No.: 154534)20.0010.0010.04100.409.9699.6010.08100.8010.02100.20
20.0019.9699.8019.8999.4520.15100.7519.8899.40
30.0029.8999.6330.12100.4030.31101.0329.9899.93
Mean99.9499.82100.8699.84
± SD0.400.510.150.41
Standard addition of Gast-reg® suspension (Batch No.: 163650)24.0010.0010.08100.8010.09100.909.9699.609.9699.60
20.0019.8299.1020.17100.8519.7998.9519.8599.25
30.0030.01100.0330.36101.2030.25100.8329.6798.90
Mean99.98100.9899.7999.25
± SD0.850.190.950.35