The phrase "a relative concentration" is correct and usable in written English.
It can be used in contexts where you are comparing concentrations of substances or elements in relation to one another.
Example: "The study measured a relative concentration of pollutants in the water samples from different locations."
Alternatives: "a comparative concentration" or "a proportional concentration".
Interestingly, the O concentration in the solid phase initially increased and then decreased, likely because the initial quantity of dissolved O was relatively small, resulting in a relative concentration increase followed by a decrease upon precipitation of Si and other elements at 144 h.
Research shows there is a relative concentration of transit points along the supply chain from Africa to Asian consumer markets.
This inorganic membrane was synthesised using metakaolin and sodium silicate solutions moulded according to a designed molar ratio (SiO2/Al2O3 = 2.96, Na2O/Al2O3 = 0.8 and H2O/Na2O = 19) which formed a homogenous structure and had a relative concentration pore size distribution, via scanning electron microscopy (SEM) and Brunauer Emmett Teller (BET) analyses.
At a relative concentration C/C0 = 0.1, Brilliant Blue FCF in kaolinite (R = 11) diffused approximately 10 mm after 21 days of source loading, and Ponceau 4R in montmorillonite (R = 7) diffused approximately 12 mm after 23 days of source loading.
Second, we use a relative concentration index.
Fig. 6 a Relative concentration changes of MO as a function of irradiation time for Ag/Cu2O samples under visible light irradiation.
A significant amount of dimer was detected for Aurora A and the relative concentration was independent of the presence of TPX2.
Supercoiling in the substrate accelerates synapsis because the transposon ends have a high relative concentration in the plectosome and a favorable angular distribution.
The presence of a higher relative concentration of chitosan favored the formation of more rigid and opaque and less permeable films.
The HGL surfaces were created using the same process as used for the CNWs, to maintain the chemical composition; however, a lower relative concentration of methane was used.
Glycine, tyrosine and arginine are all undetectable in the preserved leaf and ten of the twelve remaining amino acids are present at a lower relative concentration to those in the fresh leaves.
