Table 1

Nf-ST	Graphite	Composition % (w/w) Binder TCP	Slope (mV/decade)	C.R. (M)	LOD (M)	R(s)
0.5	55	44.5	-55.5 ± 1.5	1.00x10^-6-5.00x10^-3	7.90x10^-7	≤ 7
1	55	44.0	-56.7 ± 1.0	7.90x10^-7-1.00x10^-3	5.00x10^-7	≤ 7
3	55	42.0	-58.0 ± 0.5	2.50x10^-7-1.00x10^-3	1.00x10^-7	≤ 5
5	55	40.0	-56.8 ± 0.5	5.00x10^-7-1.00x10^-3	1.25x10^-7	≤ 6
		DOP
0.5	55	44.5	-53.5 ± 1.5	1.00x10^-6-9.70x10^-3	7.64x10^-7	≤ 9
1	55	44.0	-54.7 ± 1.0	5.00x10^-7-7.66x10^-3	2.50x10^-7	≤ 9
3	55	42.0	-55.0 ± 1.5	1.50x10^-7-5.00x10^-3	1.00x10^-7	≤ 8
5	55	40.0	-54.8 ± 0.5	5.50x10^-7-7.94x10^-3	2.50x10^-7	≤ 9
		DBP
0.5	55	44.5	-54.5 ± 1.5	2.50x10^-6-6.40x10^-3	1.50x10^-6	≤ 10
1	55	44.0	-54.5 ± 1.0	5.00x10^-6-5.00x10^-3	2.00x10^-6	≤ 12
3	55	42.0	-55.0 ± 1.5	1.99x10^-6-1.00x10^-3	7.50x10^-7	≤ 10
5	55	40.0	-53.5 ± 0.5	5.80x10^-6-6.31x10^-3	2.50x10^-6	≤ 10
		TBP
0.5	55	44.5	-53.5 ± 1.5	1.00x10^-6-1.00x10^-3	1.50x10^-6	≤ 10
1	55	44.0	-54.7 ± 1.0	5.00x10^-7-1.66x10^-3	2.00x10^-6	≤ 12
3	55	42.0	-55.0 ± 1.5	1.00x10^-6-1.00x10^-3	5.50x10^-7	≤ 10
5	55	40.0	-52.8 ± 0.5	5.00x10^-6- 6.50x10^-3	2.50x10^-6	≤ 10
		2-NPPE
0.5	55	44.5	-56.5 ± 1.5	3.99x10^-8-5.00x10^-3	2.52x10^-8	≤ 7
1	55	44.0	-57.5 ± 1.0	3.50x10^-8-7.94x10^-3	2.00x10^-8	≤ 7
3	55	42.0	-59.0 ± 0.5⃰	2.50x10^-8-2.50x10^-3	1.25x10^-8	≤ 5
5	55	40.0	-57.8 ± 0.5	5.50x10^-8-6.31x10^-3	4.12x10^-8	≤ 6
Nf-SM		2-NPPE
0.5	55	44.5	-54.5 ± 1.5	8.99x10^-8-5.00x10^-3	7.90x10^-8	≤ 7
1	55	44.0	-56.5 ± 1.0	7.25x10^-8-7.94x10^-3	6.50x10^-8	≤ 7
3	55	42.0	-58.5 ± 0.5⃰	5.00x10^-8-1.00x10^-3	4.00x10^-8	≤ 5
5	55	40.0	-57.8 ± 0.5	6.50x10^-8-6.31x10^-3	5.00x10^-8	≤ 6

Mixed ion-exchangers (Nf-ST+Nf-SM)

Nf-ST + Nf-SM	G	B	S	C.R. (M)	LOD (M)	R(s)
3.0 0.0 2.5 0.5 2.0 1.0 1.5 1.5 1.0 2.0 0.5 2.5 0.0 3.0	55.0	42.0	-60.5 ± 0.5*	1.25x10^-8-5.00x10^-2	1.00x10-8	≤ 5
	55.0	42.0	-58.5 ± 0.5	2.50x10^-8-1.00x10^-3	1.25x10-8	≤ 6
	55.0	42.0	-56.0 ± 1.0	6.31x10^-8-1.00x10^-3	5.00x10^-8	≤ 7
	55.0	42.0	-55.0 ± 1.0	2.50x10^-8-1.00x10^-3	2.00x10-8	≤ 6
	55.0	42.0	-56.6 ± 1.0	3.50x10^-8-5.00x10^-3	2.50x10^-8	≤ 7
	55.0	42.0	-57.8 ± 0.5	6.50x10^-8-6.31x10^-3	5.00x10-8	≤ 6

* The selected sensor CP: Carbon Paste, C.R.: Concentration Range (M), LOD: Limit of Detection (M), R(s): Response Time (s)

Table 1: Effect of binders on the CP sensor modified by Nf-ST ion exchangers at 25.0 ± 0.1°C.