Table 2. Comparison of 1,2,3-triazole based sensors with the previously reported sensors for the detection of Co(ii) and Cu(ii).

Entry	Structure	Metal ion	LoD (μM)	Reference
1		Cu(ii)	9.42	31
2		Cu(ii)	2.00	32
3		Cu(ii)	3.21	33
4		Co(ii)	10.0	5
5		Co(ii)	0.012	34
6		Co(ii)	1.64	This work
		Cu(ii)	3.19
7		Co(ii)	2.08	This work
		Cu(ii)	2.30
8		Co(ii)	1.81	This work
		Cu(ii)	1.17