Table 1.
Time of measurement | 16 hours later | 6 days later | 7 days later |
---|---|---|---|
(1) Control, deionized water only | 27.86 | 27.97 | 35.65 |
(2) Deionized water + silica (0.1 g/ml) | 30.31 | 39.49 | 39.20 |
(3) Deionized water + QELBY (0.1 g/ml) | 27.28 | 18.16 | 23.78 |