Sample Proposed Official % Recovery# SD* SD**
[Drug] µg mL-1 [Drug] mg mL-1
Taken Found Taken Found Proposed Official
Colircusi:
Mo(V)-thiocyanate:
150.0
250.0
149.8
250.1
10.00 10.17 99.87
100.0
101.7

0.013
0.012

0.30

BPB 18.60
37.38
18.70
37.50
10.00 10.17 100.5
100.3
101.7

0.02
0.03

0.30

BCG 18.60
37.38
18.40
37.28
10.00 10.17 98.92
99.50
101.7

0.08
0.05

0.30

BCP 18.60
37.38
18.70
37.80
10.00 10.17 100.5
101.1
101.7

0.02
0.02

0.30

Neozoline
TCNQ

60.00
150.0

59.90
148.9

5.00

4.92

99.83
99.30

98.40

0.01
0.04

0.03

* Proposed method
** Official method
# Mean values for five replicates (n = 5)
Table 4: Spectrophotometric determination of CPH and NPZ in pharmaceutical preparations by the proposed and official titrimetric methods.