Table 3 Temperature impact on the proposed Cu(II) sensor’s response.

From: Characterization of a simple potentiometric graphite based sensor and its effective applicability in sensitive and selective determination of Cu(II) ion in vegetable foliar, real water and pharmaceutical samples

T ºC

Slope

(mV decade−1)

Linear range

(mol L−1)

R2

20

29.14

1 × 10−7– 1 × 10−1

0.9993

30

29.31

1 × 10−7– 1 × 10−1

0.9997

40

29.17

1 × 10−7– 1 × 10−1

0.9934

50

28.23

1 × 10−7– 1 × 10−1

0.9987

60

29.11

1 × 10−7– 1 × 10−1

0.9998

70

18.87

1 × 10−6– 1 × 10−1

0.9921

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