Table 2. Comparison of the analytical features of the indicator displacement assay (IDA) chemosensor with the recently reported methods for oxalate determination.
| No | Probe sensing | LOD/(µmol/L) | c(linear range)/)µmol/L) | t(response)/s | w(water)/% | pH | Solid-state determination limit | Reference |
|---|---|---|---|---|---|---|---|---|
| 1 | Cu2PV | n.d. | n.d. | n.d. | HEPES buffer | 5.5–6.5 | – | (34) |
| 2 | Cu2L-eosin | 0.079 | 0.0–5.0 | n.d. | 100 | 7.0 | – | (35) |
| 3 | Zn2L2-CAS | 18.7 | n.d. | n.d. | 100 | 7.4 | – | (2) |
| 4 | GNPs/c-MWCNT/Au electrode | 1.0 | 1.0–800 | 7 | sodium succinate buffer | 5.0 | – | (36) |
| 5 | CuRB4 | 0.62 | 1.76–49.4 | <60 | 100 | 5.0–7.0 | paper test strip | present work |
n.d.=not determined