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Table 4 Summary of conducted studies on Cu detection by sensors in water samples

From: Recent trends of copper detection in water samples

Sensor

Water source

pH

Detection limit

References

Electrochemical

Water

1–6

2.5 μg L−1

Romero-Cano et al. (2019)

Colorimetric

Tap water

10.8

1.5 μg L−1

Ma et al. (2011)

Optical Fiber Chemical

Drinking water

2

0.02 µg L−1

Pesavento et al. (2019)