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Table 5 Response characteristics of Cd(II)-CPE sensor

From: Selective and sensitive determination of Cd(II) ions in various samples using a novel modified carbon paste electrode

Parameter

 

Plasticizer

o-NPOE

Ionophore

Lanthanum tungstate

Slope mV/decade

29.4 ± 0.12

Correlation coefficient

0.999

Linearity range (mol L−1)

8 × 10−8–1 × 10−1

Lower detection limit (mol L−1)

8 × 10−8

Response time(s)

5

Working pH range

2.0–7.5

Temperature °C

25

Life time (weeks)

22