Research Article

Use of Two Sulfonphthalein Dyes for the Sensitive and Selective Extraction-Free Spectrophotometric Assay of Albendazole in Bulk Drug and in Tablets

Table 2

Evaluation of Intra-day and inter-day accuracy and precision.

Intra-day accuracy and precision ( )Inter-day accuracy and precision ( )
MethodALB
taken
(µg mL−1)
ALB
founda
(µg mL−1)
RSDb %REc %ALB
found
(µg mL−1)
RSDb %REc %

A6.0
12.0
18.0
6.05
12.15
18.25
1.27
0.99
2.25
0.84
1.25
1.39
6.10
12.23
18.37
0.79
0.55
1.33
1.67
1.92
2.06
B8.0
16.0
24.0
8.09
16.27
24.30
1.40
1.32
2.18
1.10
1.68
1.25
8.07
16.35
24.48
2.35
1.13
1.31
1.90
2.18
2.01

Mean value of 7 determinations; relative standard deviation (%); relative error (%).