The phrase "at constant concentrations" is correct and usable in written English.
It can be used in scientific or technical contexts where you want to indicate that the concentrations of certain substances remain unchanged during an experiment or process.
Example: "The reaction was conducted at constant concentrations to ensure accurate measurements of the rate."
Alternatives: "at fixed concentrations" or "under steady concentrations".
Here we concentrate on protein interactions at constant concentrations as they can be inferred from high-throughput datasets.
In typical rodent pesticide feeding studies of 4 up to 104 weeks, animals are offered the pesticide at constant concentrations in the feed.
To assess the potential for such interference, the commonly occurring surfactant, linear alkylbenzene sulfonate (LAS), was applied to the yeast estrogen screen at various concentrations, independently and together with a mixture of estrogens at constant concentrations.
The increase in particle size by increasing carotenoid concentration at constant concentrations of emulsifier and organic phase has also been reported in previous studies [3, 10, 11].
Other nutrients were supplied at constant concentrations.
Some metabolites, namely the scavenged precursors, are considered to be kept at constant concentrations outside the parasites.
Human blood contains a big variety of natural antibodies, circulating throughout life at constant concentration.
The second polymer (host polymer) is present at constant concentration in the solution.
Initially, a decrease in the scattering intensity at small angles was observed when PEOM was added to a suspension of latex at constant concentration.
Firstly, retention mechanisms were assessed whereby retention factors of substances were followed in wide range of acetonitrile content (80 97%), at constant concentration of aqueous buffer (10 mM) as well as at constant pH value of 3.0.
The variation of permeate flux with shear rate at constant concentration for the two rotating disks systems with and without vanes was correlated by a single equation J = 0.136γm0.594, while the corresponding equation for the VSEP was J = 0.110γm0.587.
