Table 1: The conductivity of the standard solutions.

Category and Concentration Conductivity (μS/cm)
Sweet
100mg/dl 2.7
200mg/dl 2.9
300mg/dl 6.5
400mg/dl 3.2
500mg/dl 21.8
Umami
0.03mM 21.4
0.3mM 41.6
3mM 213
30mM 1815
300mM 11930
Bitter
0.03mM 5.4
0.1mM 20.7
0.3mM 23.6
1mM 32
3mM 47.6
Salt
0.03mM 8.5
0.3mM 56.5
3mM 347
30mM 3550
300mM 32500
Acid
pH1.68 1318
pH4.01 4280
pH7 5500
pH9.18 1512
pH10.01 5880