The phrase "a specific substance" is correct and usable in written English.
It can be used when referring to a particular material or chemical in a scientific or technical context.
Example: "In this experiment, we will analyze a specific substance to determine its chemical properties."
Alternatives: "a particular material" or "a distinct compound".
Each divot is filled with receptor molecules that look for a specific substance, like sugar or citric acid.
Depending on which material Preston selects, he could design a robot that is index-matched to a specific substance.
By naming a specific substance as the basic element of all matter, Thales opened himself to criticism, which was not long in coming.
Metabolic engineering is the practice of altering genes and metabolic pathways within a cell or microorganism to increase its production of a specific substance.
If a specific substance is degraded in dependency on the SRT, a critical value for the sludge age can be determined.
Focusing on the total amount of all substances, as in EM- MFA, provides useful information, and analysis of a specific substance provides different, and also useful, information.
Again, the factors mediating these associations may related to characteristics of a specific substance-using prison population, and clearly, there is need for more research about factors mediating the associations between index crime and prospective risk of recidivism.
(2) A "healthy" individual may have developed an allergy, perhaps during early childhood, to a single specific substance.
With the exception of a few specific substances, like emery oil or dioctyl sebacate which present a somewhat larger cut-point diameter, data in peer-reviewed literature suggests that the composition of the particles is not an issue as long as the particle diameter falls within the working range of the device.
We examined the likelihood of an event resulting in a victim or evacuation for specific substance and industry categories separately.
A second category of biologists in the second half of the nineteeenth century, to whom Carl Naegeli and August Weismann belonged, distinguished the body substance, the "trophoplasm" or "soma", from a specific hereditary substance, the "idioplasm" or "germ plasm", which was assumed to be responsible for intergenerational hereditary continuity.
