Abstract: The subject invention includes methods and devices for separating at least two constituents of a highly aqueous fluid. The subject methods include contacting a highly aqueous fluid with a stationary phase having a low density hydrophobic bonded phase under conditions to separate at least two constituents. Also provided are systems that include a stationary phase having a low density hydrophobic bonded phase, a highly aqueous fluid comprising at least two constituents and a device configured to perform liquid chromatography. Kits for use in practicing the subject methods are also provided.

Abstract: Methods and apparatus are disclosed for synthesizing a purality of compounds such as biopolymers on the surface of supports. The synthesis comprises a plurality of steps in which reagents for conducting the synthesis are deposited o the surface of the support to form precursors of the chemical compounds and, ultimately, the chemical compounds themselves. An error in the deposition may occur in one or more of the plurality of steps. A reagent for forming the chemical compounds is deposited on the surface of the support. A determination is made as to whether an error occurred in the depositing of the reagent. If an error is detected, the support is treated to re-deposit at least some of those reagents that were not correctly deposited. In one approach the support is treated to stabilize precursors of the chemical compounds, the source of the error is corrected, and the reagent applied above is re-deposited on the surface.