Table 1 The electrochemical validation parameters of the designed GCE sensors

Slope (mV/decade)^a

19.98

20.22

Intercept (mV)

256.46

286.14

Correlation Coefficient (r)

1

1

Linearity Range (M)

1.0 × 10^–6–1.0 × 10^–3

1.0 × 10^–7–1.0 × 10^–3

Working pH Range

2–7

2–7

Response Time (Sec.)

18

8

Lifetime (Weeks)

3

7

Accuracy (Mean ± RSD%)^b

99.84 ± 0.700

100.23 ± 0.576

Repeatability^c (%)

1.037

1.011

Intermediate Precision^c (%)

1.619

1.486

Robustness^d (%)

1.264

0.986

LOQ (M)

1.0 × 10^–6

1.0 × 10^–7

LOD^e (M)

1.73 × 10^–7

9.76 × 10^–8