Electrode type [MOXHC]a taken mg mL-1 SD (RSD%)  Recovery %   [MOXHC] found mg mL-1  Standard official methodc
SAMb Calibration SAMb Calibration Calibration SAMb RSD % (n = 5) Recovery (%) [MOXHC] found mg mL-1 [MOXHC] taken mg mL-1
ISPE (22 mg NaTPB) 0.306 0.005 (1.909) 0.005 (1.79) 94.28 96.40 0.288 0.295 0.243 99.60 2.180 2.189
2.189 0.004 (0.188) 0.004 (0.213) 99.76 99.37 2.183 2.175
ISPE (16 mg RN) 0.306 0.002 (1.002) 0.006 (2.169) 97.30 97.41 0.297 0.297
2.189 0.004 (0.198) 0.004 (0.186) 99.40 99.20 2.176 2.171
ISPE (30 mg PTA) 0.306 0.005 (1.802) 0.006 (2.095) 97.05 94.41 0.297 0.289
2.189 0.005 (0.228) 0.004 (0.212) 99.74 99.93 2.183 2.187
IPVC 7.5 mg NaTPB 0.306 0.004 (1.417) 0.002 (0.981) 96.89 98.03 0.296 0.300
2.189 0.006 (0.295) 0.008 (0.369) 99.93 100.11 2.187 2.191
IPVC (7.5 mg PMA) 0.306 0.003 (1.161) 0.004 (1.589) 98.44 95.50 0.301 0.292
2.189 0.005 (0.249) 0.007 (0.339) 99.74 99.36 2.183 2.175
IPVC (7.5 mg PTA) 0.306 0.005 (1.813) 0.004 (1.384) 95.91 95.17 0.293 0.291
2.189 0.007 (0.360) 0.006 (0.304) 99.47 99.24 2.177 2.172
ICPE (10 mg NaTPB) 0.306 0.007 (2.372) 0.004 (1.443) 98.20 96.07 0.300 0.294
2.189 0.003 (0.169) 0.004 (0.187) 99.88 100.01 2.186 2.189
aAverage of five replicate (n = 5) bStandard addition method cStandard official method
Table 7: Potentiometric determination of MOXHC in pure and pharmaceutical preparation by calibration and SAM methods using modified ICPE, ISPE and IPVC sensors.