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Table 3 Performance characteristics of LNP ISEs

From: Development of membrane electrodes for selective determination of lisinopril in pharmaceuticals

Parameters

LNP-PTA ISE

LNP-PMA ISE

Linear range, mol l−1

5 × 10−5–2.4 × 10−3

5 × 10−5–2.4 × 10−3

Limit of detection (LOD), mol l−1

1.2 × 10−5

1.18 × 10−5

Limit of quantification (LOQ), mol l−1

3.6 × 10−5

3.7 × 10−5

Slope (m), mV/decade

55.06 ± 1

52.39 ± 1

Intercept (b), mV

307.71

297.17

Correlation coefficient (r)

0.9980

0.9978

Response time, s

10

10

Working pH range

2.5–6.4

2.3–6.0

Temperature, °C

22–32

22–32

Life span of sensor, days

68

68