Preparation, Characterization, and Analytical Application of Ramipril Membrane-Based Ion-Selective Electrode

Table 4

Determination of ramipril in some pharmaceutical preparations.

Sampl${\text{e}}^{(\text{a})}$	Nominal content mg/tablet	Ramipril-phosphomolibdate		Ramipril-teraphenylborate
		Found	Recovery %	Found	Recovery %
1	1.25	1.23	98.4	1.24	99.2
2	2.50	2.43	97.2	2.46	98.4
3	5.0	4.95	99.0	4.95	99.0
Average recovery			98.2		98.8

${}^{(\text{a})}\text{D}$ifferent pharmaceutical formulations (tritace; aventis).