Skip to main content
Account

Table 1 Selectivity coefficient values of membrane based on 25,27-di-(5-thio-octyloxy)calix[4]arene-crown-6 for ammonium determination

From: Development of Conductometric Sensor Based on 25,27-Di-(5-thio-octyloxy)calix[4]arene-crown-6 for Determination of Ammonium

Interfering ion (B)

Selectivity coefficient, \( {K}_{\mathrm{NH}4,\ B}^{\mathrm{Con}} \)

Logarithm of selectivity coefficient, log \( {K}_{\mathrm{NH}4,\ B}^{\mathrm{Con}} \)

Na+

3.8 × 10−1

−0.923

K+

2.8 × 10−1

-1.095

Mg2+

9.8 × 10−2

-2.243

Ca2+

1.2 × 10−1

-2.249

Al3+

7.3 × 10−2

-2.458

Navigation