| 摘要 |
The invention provides a method and an apparatus for altering the pH of a solution composition. The pH altering apparatus has a container body having a solution retaining chamber and an outlet, and a pH changing device having a modified ion exchange material selected from the group consisting of modified anion exchange materials and modified cation exchange materials, wherein the modified anion exchange materials contain a weak acid-forming counterion and the modified cation exchange materials contain a weak base-forming counterion. |
