The phrase "added a solution of" is correct and usable in written English.
It can be used in scientific or technical contexts when describing the process of incorporating a solution into a mixture or experiment.
Example: "In the experiment, we added a solution of sodium chloride to the beaker to observe the reaction."
Alternatives: "introduced a solution of" or "incorporated a solution of".
He then added a solution of potash (potassium carbonate) to the magnesia usta and showed that the product weighed the same as his original sample of magnesia alba.
To a solution of 100 ml of 1.0 M BBr3 in dichloromethane in a dried 250 ml three necked flask was added a solution of 5.40 g of 3,5-dimethoxybromobenzene in 10 ml of dry dichloromethane over 30 minutes.
To this the technicians added a solution of agrobacterium, a disease bacterium whose modus operandi is to break into a plant cell's nucleus and insert some of its own DNA.
He packed a vertical glass column with an adsorptive material, such as alumina, silica, or powdered sugar, added a solution of the plant pigments to the top of the column, and washed the pigments through the column with an organic solvent.
Then, we added a solution of iodine (I2) dissolved in 5 ml of acetone and 0.5 ml of acetyl-acetone.
To a solution of PF-Br (100 mg) in methanol (20 mL) was slowly added a solution of ammonium hexafluorophosphate (0.4 g, 4.8 mmol) in methanol (20 mL).
Third, following polymerization, we simultaneously permeabilized the polymer membrane and induced formation of a clay-hydrogel in their interior by adding a solution of ethanol and HEPES buffer.
Solutions of copper (II) were prepared by dissolving samples of Cu(NO3 2°3H2O of analytical grade of purity in distilled water and subsequent dropwise adding a solution of nitric acid for suppression of hydrolysis (pH ≈ 1).
The absence of catalase activity in "military" isolates was confirmed by adding a solution of 3% H2O2 to smears of various strains.
Each lipoplex sample was prepared at r.t. by adding a solution of nucleic acids (pEGFP-N1) to a liposome suspension, at the desired lipid concentration, yielding different CR.
R+ medium was prepared by adding a solution of rapamycin, dissolved in DMSO, to MM (20 nM final concentration).
