The phrase "a impregnation" is not correct in written English.
The correct form is "an impregnation" due to the vowel sound that follows the article.
Example: "The doctor explained the process of an impregnation during the consultation."
Alternatives: "a conception" or "a fertilization".
The synthesis scheme consists of: (a) impregnation of saccharide with Ni or Fe nitrates, (b) heat treatment under inert atmosphere (N2) up to 900 °C or 1000 °C and (c) oxidation in liquid phase to selectively recover the graphitic carbon.
All the catalysts were obtained from hydrotalcite-type precursors (HT), prepared according to different methodologies: (a) impregnation of the active phase on a support derived from a HT precursor, (b) coprecipitation, inserting Ni and Rh inside the HT precursor, or (c) coprecipitation on a support (α-Al2O3) of a HT precursor containing the active metals.
A silicomolybdic acid (SMA) supported on mesoporous MCM-41 catalyst was successfully prepared by an impregnation with a molybdic acid solution via ion exchange of a Na2MoO4 · 2H2O solution.
Before screening, the parents or guardian was issued a bednet containing an impregnation kit and instructions on its use.
The whole novel is an indictment of the cod psychology that advises human beings to "move on", shucking off their pasts as if these were a skin rather than an impregnation of the entire being.
This catalyst was prepared by an impregnation method using a solution containing Co, Mo, P, and citric acid on a HY-Al2O3.
All products except the ear-cleaning solutions (Otifree®, Epi Otic®) and the control exhibited a weight gain indicating an impregnation by either incorporation or adhesion.
The supported catalysts of Cu/Al2O3 were prepared by an impregnation method with an aqueous solution of copper nitrate, followed by evaporation for drying in a rotary evaporator under pressure reduction at 333 K.
Silica modified Co-based catalysts were prepared by a sol gel method followed by an impregnation method.
Nickel species were introduced into a silica-supported copper catalyst by an impregnation method.
