The phrase "a tracer of a" is grammatically correct and can be used in written English.
It can be used in contexts where you are describing something that tracks or follows another thing, often in scientific or technical discussions.
Example: "The scientist used a tracer of a specific isotope to study the movement of water in the ecosystem."
Alternatives: "a marker of a" or "an indicator of a".
Kay has always been a watcher, a tracer of the "true" story, or, as Millie sees it, the difference between living a lie and living a life – maybe even an afterlife, since Trumpet is also its own book of revelation.
Here we develop the use of carbon-14 in dissolved inorganic carbon (DIC) in a stream as a tracer of groundwater discharge.
Mercury (with seven stable isotopes) is also likely to be difficult to use for isotope measurements because of minor fractionation in nature, but it may have a potential as a tracer of organic matter [17].
In the first experiments, carried out in a medium-sized test tunnel, a tracer of strontium chloride in dilute solution was used, along with a nozzle of the sort used in practice.
aAirborne benzene and toluene concentrations measured as a tracer of traffic exposure measured through a passive sampler worn near the breathing zone by each participant during work shift.
Often, conclusions were based on double fluorescence, where one cell would show a tracer of its origin and an antigen typical of the tissue where it had been transplanted.
Caffeine offers several advantages as a tracer of environmental fecal contamination.
Macrophage infiltration has been identified in early stages of RA [ 13], and therefore a specific tracer of such a process would be more specific and possibly also enable an earlier detection of inflammation.
Active methods involve forcing (heating, cooling, application of pressure, application of a tracer, or a contrast medium, etc) and measure the response of the system to the applied forcing.
