The phrase "a defined concentration of" is correct and usable in written English.
It can be used in scientific or technical contexts to specify a particular amount of a substance in a solution or mixture.
Example: "The experiment required a defined concentration of sodium chloride to ensure accurate results."
Alternatives: "a specific concentration of" or "a precise concentration of".
Nanoparticles comprising Alginate/Chitosan polymers were prepared by pregel preparation method through drop wise addition of various concentrations of CaCl2 to a defined concentration of Sodium Alginate.
PBS significantly increased the consistency, viscoelasticity and mucoadhesion, reaching a maximum at a defined concentration of PBS that was dependent on PAA concentration and Tetronic grade.
Solutions of a defined concentration of reference compounds were tested.
The mMRS medium consisted of 10 g glucose, 5 g yeast extract, 10 g peptone, 10 g meat extract, 2 g K2HPO4, 2 g ammonium citrate, 5 g sodium acetate, 100 mg MgSO4·7H2O, 50 mg MnSO4, along with a defined concentration of electron acceptors, such as citric acid (26 mM) or glycerol (160 mM) per litre.
Before further analysis a defined concentration of 5α-cholestan 5α-cholestanch) was added as internal standard.
We propose an experiment in a chemostat, in which an mpr-AB inducible strain [35] is exposed to alternating stress and growth conditions, where only the stress environments contain a defined concentration of mpr-AB inducer.
In a defined concentration range of 2 4 mmoll−1, SDBS can certainly be used as a chromophore for indirect detection without imparting excessive baseline noise.
The GC system was calibrated by use of a standard gas mixture containing a strictly defined concentration of ethene (19.8 ± 0.4 ppm) in nitrogen, obtained from Linde Gas.
It is worth mentioning that it is also possible to precisely control the shell thickness in the second step utilizing a precisely defined concentration of precursors or sacrificial nanoparticles.
This assay is used for the quantitative measurement of dabigatran in plasma (within the range 50 500 ng/mL), with a clotting method based on the inhibition of a constant and defined concentration of thrombin.
The Hemoclot kit was used for the quantitative measurement of direct thrombin inhibitors in plasma, with a clotting method based on the inhibition of a constant and defined concentration of thrombin.
