The phrase "a difference in concentration" is correct and usable in written English.
It can be used in scientific contexts, particularly in chemistry or biology, to describe variations in the amount of a substance in a given volume or area.
Example: "The experiment demonstrated a difference in concentration between the two solutions, leading to a noticeable reaction."
Alternatives: "a variation in concentration" or "a disparity in concentration."
In E. coli a difference in concentration producing a change in the occupancy of only a single receptor site is sufficient to produce a change in behaviour.
A molecular mass of 17 was used and instead of a difference in concentration, the measured concentration was used, leading to a slight overestimation of the actual NH3 production (between 0 and 0.1 mg/kg BM/day).
Unfortunately, we were unable to detect a difference in concentration of HO-1 protein in lysates of injured tissues between animals treated with therapeutic HO-1 or control GFP cDNAs on the 3rd day after gene transfer.
Therefore, to detect a difference in concentration of 205 (535–330) before drug and after 4 h and SD of 84.85 (calculated from SE of the Mean of 20 with sample size of 18), with 80% power at the 5% level of significance, four patients are required.
In our hands, none of the seven complement proteins tested by ELISA showed a difference in concentration levels between SD and DF acute samples, minimizing the potential role of these proteins in dengue pathogenesis, at least in the early phase of the disease.
The monitoring and private well models clearly demonstrate a difference in concentrations based on depth, so well depth could quantify this more explicitly as opposed to categorically as done by this study.
A likely explanation for the difference in interference with cisplatin-induced antitumour activity is a difference in the reactivity of BNP7787 and mesna with cisplatin in combination with a difference in concentrations between BNP7787 and mesna in plasma and tumour levels after administration of BNP7787 or mesna.
There were significant differences in arterial haemoglobin concentration between baseline and subsequent time points in the two groups, and there was a difference in haemoglobin concentration between groups at T1 (Table 3).
This variation could be explained by a difference in the concentration of benzyl chloride in the third phase.
Such flow is driven by a difference in the concentration of sugars, which generates "osmotic pressure".
There was a difference in protein concentration of about 120 µg/mL (34%% of the total proteins) between fraction I and UBP fraction.
