Synthesis of 1D silica mesostructures: The synthesis of chiral mesostructured silica nanorods was simply achieved by using F127 and CTAB as binary templates in basic aqueous solutions at room temperature (26C). Typically, F127 (0.123g), H2O (3.5 mL), CTAB (12.5mL, 0.04M), and aqueous ammonia solution (15mL, 2.5wt%) were mixed to form a clear solution, to which TEOS (0.6mL) was added under stirring. The final concentrations for F127, CTAB, TEOS, and ammonia were 0.31mM, 15.8mM, 0.66M, and 0.085M, respectively. After 2min of stirring, the mixture was allowed to stand under static conditions at room temperature for 3h, leading to the formation of a white suspension.
Что значит CTAB 12.5ml, 0.04M если это порошок?