The phrase "a specified concentration of" is correct and usable in written English.
It can be used in scientific or technical contexts when discussing the amount of a substance in a solution or mixture.
Example: "The experiment required a specified concentration of sodium chloride to ensure accurate results."
Alternatives: "a defined concentration of" or "a determined concentration of".
Alternating layers were doped with a specified concentration of scattering particles.
Confluent monolayers of BSC-40 cells (96-well plate) were incubated with a specified concentration of the naphthoquinones for 24 h at 37°C.
The bacterial colonies were collected and mixed with agarose solution and vortexed at 37°C to obtain a specified concentration of agarose-bacteria mixture (9.5×107, 1.9×108, 3.8×108 CFUs/mL), Figure 1a. 2 mL of E. coli – agarose mixture solution was poured into each well of a 24-well plate (Cat. 3527, Corning Inc., Corning, NY).
If, during testing, the material leaches more than a specified concentration of certain constituents, it is deemed "hazardous by characteristic".
Each location in space carried a specified concentration of both drug-sensitive and drug-resistant cell products.
Sensitivity in our setting is defined as the ability to detect a significant effect of the used compounds at a specified concentration, whereas LOD is the lowest concentration level determined to be statistically different from blank.
Briefly, subconfluent cell monolayers were incubated with the specified concentration of SCD inhibitor or DMSO vehicle in the growing media for 24 h.
Cells were treated with specified concentration of PA-MSHA for 48 h at 37°C, and then stained with 5 mg/L Hoechst 33258 (Sigma, St . Louis MO) for 30 min at 37°C, visualized under a fluorescence microscope with standard excitation filters.
Cells were treated with specified concentration of PA-MSHA, 3-MA or 3-MA in combination with PA-MSHA and incubated at 37°C for 12, 24, 36 and 48 hours.
In the chemoradiation experiments, cells were treated with specified concentrations of VRL or VFL (see Table 1) and this was immediately followed by radiation (Cobalt-60 γ rays, 0 8 Gy, room temperature).
First, a mixture of salt (60-wt.% NaNO3 and 40-wt.% KNO3) and alumina NPs with specified concentration was prepared in a beaker.
