Influence of: | kS-to-R × 10−2 | khyd × 10−2 |
---|---|---|
day−1 | ||
% (v/v) methanol2-a | ||
50 | 1.86 ± 0.02 | 0.176 ± 0.005 |
40 | 2.43 ± 0.02 | 0.245 ± 0.010 |
33.3 | 2.70 ± 0.03 | 0.327 ± 0.018 |
pH2-b | ||
3.0 | 1.18 ± 0.02 | 0.191 ± 0.007 |
5.6 | 1.87 ± 0.02 | 0.068 ± 0.004 |
7.4 | 2.21 ± 0.03 | 0.183 ± 0.006 |
9.0 | 2.14 ± 0.03 | 0.730 ± 0.016 |
Phosphate conc.2-c | ||
0.1 M | 1.73 ± 0.02 | 0.131 ± 0.003 |
0.2 M | 1.80 ± 0.02 | 0.156 ± 0.004 |
0.3 M | 1.89 ± 0.02 | 0.168 ± 0.004 |
Ionic strength2-d | ||
0.52 | 1.87 ± 0.02 | 0.176 ± 0.005 |
0.6 | 1.85 ± 0.03 | 0.171 ± 0.005 |
0.78 | 1.80 ± 0.02 | 0.156 ± 0.004 |
Values are means (±standard deviation) of triplicate determinations.
↵2-a Mixtures of methanol with phosphate buffer, pH 7.4 (0.2 M, ionic strength 0.52).
↵2-b 1:1 mixtures of methanol and phosphate buffers (0.1 M, ionic strength 0.3).
↵2-c 1:1 mixtures of methanol and phosphate buffers (pH 7.4, ionic strength 0.78).
↵2-d 1:1 mixtures of methanol and phosphate buffers (pH 7.4, 0.2 M).