Selective Consecutive Determination of Desloratadine and Montelukast Sodium in Their Pure and Binary Dosage Form Based on Pencil Graphite Electrochemical Sensors
Table 2
Effect of the coating solution composition % () of DES- and MON-coated graphite sensors.
Composition
Linearity (M)
Slope mv. decade−1
PVC%
DBP%
IP%
DES.RNK sensor
47.75
47.75
5
5 × 10−4 − 1 × 10−2
−24.8
45
45
10
5 × 10−5 − 1 × 10−2
−25.6
60
30
10
5 × 10−5 − 1 × 10−2
−26.1
30
60
10
5 × 10−5 − 1 × 10−2
−30.1
40
40
20
5 × 10−5 − 1 × 10−2
−26.3
35
45
20
5 × 10−5 − 1 × 10−2
−26.2
MON-Cd. sensor
47.5
47.5
5
5 × 10−5 − 1 × 10−2
23.8
45
45
10
1 × 10−5 − 1 × 10−2
24.9
60
30
10
1 × 10−5 − 1 × 10−2
26.1
30
60
10
1 × 10−5 − 1 × 10−2
27.7
40
40
20
1 × 10−5 − 1 × 10−2
25.2
35
45
20
1 × 10−5 − 1 × 10−2
25.7
Combined sensor
30
60
5
5
1 × 10−4 − 1 × 10−2
−23.12
24.23
40
40
10
10
5 × 10−5 − 1 × 10−2
−27.56
28.50
24
48
10
10
1 × 10−5 − 1 × 10−2
−29.16
29.79
45
35
10
10
1 × 10−5 − 1 × 10−2
−28.76
29.42
∗Best percentages of the components which gave the best sensor’s characteristics.
