. 2021 Dec 21;12(1):94–103. doi: 10.1039/d1ra08337f

Evaluation of intra- and inter-days precision and accuracy of CPE (sensor IV) and SPE (sensor VIII) in different water samples.

Electrode type	Sample no.	[Ce(iii)] taken, (mg L⁻¹)	Intra day			Inter day
Electrode type	Sample no.	[Ce(iii)] taken, (mg L⁻¹)	[Ce(iii)] found, (mg mL⁻¹)	Recovery (%)	RSD%	[Ce(iii)] found, (mg L⁻¹)	Recovery (%)	RSD%
Sensor IV	2	0.30	0.297	99.0	0.574	0.295	98.33	0.743
	2	0.35	0.348	99.43	0.518	0.344	98.28	0.847
	4	0.35	0.347	99.14	0.498	0.346	98.86	0.698
	4	0.50	0.495	99.0	0.502	0.494	98.8	0.609
Sensor VIII	2	0.30	0.298	99.33	0.553	0.296	98.67	1.002
	2	0.35	0.349	99.71	0.499	0.345	98.57	1.063
	4	0.35	0.349	99.71	0.452	0.347	99.14	0.742
	4	0.50	0.497	99.4	0.511	0.496	99.2	0.704