Parameter

${\text{NH}}_4^{+}$ -ISE

${\text{NO}}_3^{-}$ -ISE

Sensitivity [mV/decade in range of 1 mol/L to 10⁻⁵ mol/L]

>52

>−52

Coefficient of determination [R²]

0.991

0.995

Limit of detection [mol/L]

<10⁻⁶

<−10⁻⁵

Selectivity coefficient [lg k ^pot]

(main interfering ion)

K⁺: −0.85

Cl⁻: −1.63

Response time [s]

<25

<25

Life time [month]

6 - 12

6 - 12

Linear range [mol/L]

10⁻¹ - 10⁻⁶

10⁻¹ - 10⁻⁵