Table 1 The comparison of dynamic range, detection limit of several colorimetric methods
From: Ultrasensitive detection of Cu2+ with the naked eye and application in immunoassays
Detection principle | Dynamic range | Detection limit | Reference |
|---|---|---|---|
Electrostatic interaction | 10–500 μM | 10 μM | 11 |
Click chemistry | 50–500 μM | 50 μM | 29 |
Click chemistry | 20–100 μM | 20 μM | 10 |
Cu2+-dependent DNA ligation DNAzyme | 5 μM–1 mM | 5 μM | 28 |
Catalyst | 10–450 nM | 10 nM | This work |
