Comparative study of the analytical performance of 1O with other reported sensors.

Compound number	Structure	Interferents	K a (M−1)	Test strip	Logic circuit	Ref.
1O		None	4.72 × 104	Yes	Yes	This work
2		Pb2+	2.10 × 102	No	No	37
3		Hg2+, Fe3+	8.46 × 105	Yes	No	38
4		Cr3+	2.11 × 103	No	No	39
5		Hg2+	1.00 × 109.08	Yes	No	40
6		Zn2+	—	Yes	No	41