Below is a data-grounded LOD matrix and visual LOD comparisons built only from the explicit example-excerpt entries present in the provided research data for this review.
Source is a comprehensive review on graphene quantum dots (GQDs)-based inorganic ion detection platforms, reporting representative sensing performance metrics (including LODs) compiled from the literature.
Units are shown as given in the provided excerpt. Only ions/LOD entries explicitly present in the provided research data are included.
| Inorganic ion | GQD type (as excerpted) | Sensing mode (excerpted) | LOD (as excerpted) | Linear range (excerpted) | Reference pointer (excerpted) |
|---|---|---|---|---|---|
| Fe3+ | N-GQDs | Fluorescence turn-off (quenching) | 2.38 nM | 0β34 mM | Fig.6a/c; Ref. 173 (ST-synthesized N-GQDs; 6.1.1) |
| Hg2+ | Mn,N,S-GQDs | Fluorescence quenching (and related chemistries); also ECL/ratiometric mention | 0.56 nM | Not specified in excerpt | 6.17.2; Ref. 240 |
| Pb2+ | N,S-GQDs with Cu nanoclusters (CuNCLs) on GCE | Electrochemical DPV (DPV-based EC detection) | 1 pM | 0β1000 nM (approx.) | 6.17.1; Ref. 266 |
| Pb2+ | Hyb-BNQDs/N-GQDs@GCE | DPV | 1 pM | 1e-6 β 100 mM (as excerpted; spans many orders) | 6.17.1; Ref. 266 |
Evidence basis: the specific ionβLODβmethod entries above come from the provided excerpted performance items summarized within the review.
Smaller LOD β higher sensitivity. Values are plotted on a log scale using the excerpted units.
Because this βmatrix builderβ is limited to the excerpted entries supplied in the research data, completeness varies by ion/method.
If you want, I can extend the LOD matrix to all ions covered in the full reviewβyour next step would be to provide additional excerpt rows (or upload the full-text table pages) so the builder uses more complete raw values rather than a partial extract.
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