Utilization of a Green Brominating Agent for the Spectrophotometric Determination of Pipazethate HCl in Pure Form and Pharmaceutical Preparations

Table 6

Analysis of pharmaceutical formulations of PZT by the proposed and reported methods.

Drug formulations	Recovery^a  % ± SD
	A	B	C	D	E	Reported method [16]
Selgon tablets (20 mg/tablet)	99.83±0.36	99.75±0.58	99.60±0.49	100.02±0.71	99.93±0.67	99.70±0.52
𝑡-value^b	0.46	0.14	0.31	0.81	0.61
𝐹-value^b	2.09	1.24	1.13	1.86	1.66
Selgon drops (40 mg/mL)	99.98±0.54	100.15±0.82	100.04±0.65	99.90±0.80	99.89±0.92	100.50±0.61
𝑡-value^b	1.43	0.77	1.15	1.33	1.23
𝐹-value^b	1.28	1.81	1.14	1.72	2.27

aAverage ± SD of six determinations.
^bTheoretical value for 𝑡- and F-values for five degrees of freedom and 95% confidence limits (𝑃=0.05) are 2.57 and 5.05, respectively.