Table 2 Electrochemical response characteristics and validation parameters of the proposed Midazolam sensors

Slope (mV/decade)^a

53.5

54.5

Intercept (mV)^a

301.0

332.4

Correlation coefficient (r)

0.9992

0.9998

Response time (s)

25

10

Working pH range

2.5–4

2.5–4

Concentration range (M)

1 × 10^–6–1 × 10^–2

1 × 10^–6–1 × 10^–2

Stability (days)

20

30

Accuracy (mean ± SD)

100.13 ± 1.57

99.89 ± 1.13

Precision (% RSD)

 Intra-day precision^a

0.864

1.311

 Interday precision^b

1.296

1.967

 LOD (M)^c

9.0 × 10^–7

9.0 × 10^–7