Table 1 Comparison the analytical merits of the Co2+ determination based fluorescence quantum dots.
Type of QDs | Surface-modified | Mode of detection | Linear range (μM) | Detection limit (μM) | Ref. |
|---|---|---|---|---|---|
CdS QDs | N-thiophene-2-carboxamide | Fluorescence quenching | 10–150 | 0.83 | |
CdS QDs | L-Cysteine | Fluorescence quenching | 4–80 | 1.13 | |
CdS QDs | 3-Mercaptopropionic acid (MPA) | Fluorescence quenching | 0.01–1/1–50 | 0.01 | |
CdSe QDs | L-Cysteine | Fluorescence quenching | 0–20 | 0.1 | |
ZnO QDs | β-Cyclodextrin | Fluorescence quenching | 1–10 | 0.34 | |
CdS QDs | Thioglycolic acid | Fluorescence quenching | 0.5–80 | 0.05 | This work |
