The phrase "amount of substances" is correct and can be used in written English.
You can use it to describe the number or amount of any elements or substances. For example: "The amount of substances in the laboratory had increased significantly since the beginning of the experiment."
This is particularly true with magnetic resonance imaging (MRI) due to its intrinsic superb spatial/temporal/contrast resolutions and adequate detectability for tiny amount of substances.
But, Arkema added, it was using "multiple layers of preventative and mitigation measures" at the plant, including steps to reduce the amount of substances released, and that made the worst case "very unlikely".
The input parameters were chosen in such a way that a worst-case exposure estimate is derived, thereby assuming that each and every training session and match will take place on an STP with rubber granulate, from which each time the maximum amount of substances present will be released.
It was found that, when the cathodic processes take place at the bare metal surface (at c.d. sufficient to cause complete hydration of the oxide film), the amount of substances formed is proportional to the square root of the total cathodic charge passed during a pulse.
The Technical Committee, CEN TC 351 "construction products: assessment of release of dangerous substances", developed two laboratory test procedures to determine the amount of substances released into water.
The variability in the percentage leads to another change within the amount of substances which are vP but fail the B criterion (vP¬B substances, case (c) in Figure 1) when increasing the percentage from 10%to15%5%.
We found that to achieve a 50percentt kill rate of glioma cells, a dose of 14 mM (millimolar – a measure of amount-of-substance concentration) of CBD or 19 mM of THC would be needed if each was used singularly.
Internal energy is an extensive property that is, its magnitude depends on the amount of substance in a given state.
For chemical systems it is usual to deal with the concentrations of substances, which is defined as the amount of substance per unit volume.
Moreover, for the same amount of substance, the ROS generated from irradiated MB is just about 80% of that of Ce637.
After 30 years of continuous experimentation, he found that the sum total of visible excreta was less than the amount of substance ingested.
