The phrase 'composition of substances' is correct and usable in written English.
You can use it to describe the ingredients that make up a particular item, such as a drug or a beauty product. For example, you could say, "The composition of substances in this skin cream includes aloe vera and beeswax."
This provides a means of determining the chemical composition of substances.
Differential thermal analysis (DTA), in analytical chemistry, a technique for identifying and quantitatively analyzing the chemical composition of substances by observing the thermal behaviour of a sample as it is heated.
Thus, for example, the InChI only formally relates to a connection table, and works where there is a pragmatic correlation between connections tables and the composition of substances.
This study targeted "the composition of substances" segment of junior high school chemistry classes and, furthermore, involved the design and development of a set of inquiry-based Augmented Reality learning tools.
The structure and composition of substances adsorbed to a Bi(0 0 1) electrode in ethanolic LiClO4 solution were studied by cyclic voltammetry, electrochemical impedance and infrared reflectance spectroscopic methods.
Although the total volume of consumption has not changed over time, the composition of substances did.
Godfrey comments that it is in this second sense that attributes are usually applied to God, even though this is not intended to imply any real distinction or composition of substance and attribute in him.
The explanatory work is first of all the mechanism (the chemical composition of substance which allows the reaction), and second, the context (the physical conditions which allow the mechanism to come into operation).
The vinegar pickling process changes the content and composition of functional substances in soybeans.
The aim of this study was a gradual extraction of WDC and AC fractions from soil and the study of the content and composition of humic substances and clay minerals in these fractions as well as their effect on the hydrosorption capacity.
The aim of this study was a gradual extraction of WDC and AC fractions from periodically overmoistening meadow podbel (mollic planosol) and the study of the content and composition of humic substances and clay minerals in these fractions as well as their effect on the hydrosorption capacity.
