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Table 1 Potentiometric response characteristics of the copper-selective sensors A-C

From: Potentiometric detection and removal of copper using porphyrins

Sensor

Working conc. range (M)

Slope (mV/decade)

Detection limit (μM)

R2

A

5x10-5 – 1x10-1

(26.0 ± 0.3)

0.8

0,9969

B

1x10-7 – 1x10-1

(28.4 ± 0.4)

0.09

0,9972

C

1x10-5 – 1x10-1

(24.8 ± 0.4)

8.0

0,9989

  1. The table presents the working concentration range (M), slope (mV/decade of activity) and detection limit (μM) of the obtained sensors.