The phrase "amount and ratios" is correct and usable in written English.
It can be used when discussing quantities and their relationships or comparisons in various contexts, such as finance, science, or cooking.
Example: "In the recipe, the amount and ratios of the ingredients are crucial for achieving the desired flavor."
Alternatives: "quantities and proportions" or "levels and comparisons".
The amount and ratio of products were influenced by the deposited ruthenium(0) co-catalyst and solvent polarity.
Besides differences in total protein content, variations in the amount and ratio of amino acids were also revealed.
The amount and ratio of triethylborane and reducing agent (tributyltinhydride) that is employed as well as the concentration the reaction is run at are all essential to the success of this new approach.
As the assumption of normality of the data has been rejected about the amount and ratio of root resorption, the Mann-Whitney U test was used for the above two items; the two sample t tests were used for the others.
A series of experiments were conducted to assess the effects of: (i) the surface chemistry of the support and (ii) the amount and ratio of palladium and gold on the surface morphology of the bimetallic catalysts and on their catalytic performances, and (iii) the oxidation state of the metallic components on the activity of the catalysts.
The amount and ratio of chemical compounds per mushroom varies widely from region to region and season to season, which can further confuse the issue.
Obviously, the amount and ratio of sampled reads in each simulation result reflects the configured abundances and genome sizes.
Japanese beetle damage changed both the total amount and ratio of the seven compounds comprising the optimized blend.
Moreover, we show that upon neuronal differentiation, the amount and ratio of Sp1 and Sp3 decrease (as discussed below) and correlate with a reduction of the basal activity of the REST promoter.
Upon neuronal differentiation, we show that the amount and ratio of Sp1/Sp3 proteins decline, as does REST expression, and that the transcriptional role of Sp3 shifts toward a weak activator.
