. 2022 Nov 29;7(49):45432–45442. doi: 10.1021/acsomega.2c06048

Table 2. F^– Recoveries (%) for Application of the Proposed Method to Ionic Species Commonly Found in Water at Different Mass Ratios to F^–

interferent	error (%)	mass ratio (F^–:ions (w/w))
Cl^–	+6.50	250
Br^–	+6.50	500
I^–	+4.70	500
NO₃^–	+5.10	500
HCO₃^–	–11.8	9
SO₄^2–	+5.60	40
PO₄^3–	before precipitation with Ag⁺: +20.9	1
PO₄^3–	after precipitation with Ag⁺: +6.30	1
K⁺	+7.52	250
NH₄⁺	+8.00	100
Ag+	–4.56	100
Ca²⁺	+6.23	100
Mg²⁺	+7.80	30
Mn²⁺	+4.30	100
Fe²⁺	before EDTA masking: −99.99	1
Fe²⁺	after EDTA masking: +6.29	1
Fe³⁺	before EDTA masking: −99.98	1
Fe³⁺	after EDTA masking: 0.00	1

Table 2. F– Recoveries (%) for Application of the Proposed Method to Ionic Species Commonly Found in Water at Different Mass Ratios to F–