The phrase "a rather small volume" is correct and usable in written English.
You can use it when describing the size of an object, particularly in contexts related to books, containers, or quantities.
Example: "The library has a collection of rare books, including a rather small volume on ancient history."
Alternatives: "a fairly small size" or "a somewhat limited amount."
Both equilibrium and pressure-jump kinetic fluorescence experiments were consistent with a simple two-state folding/unfolding transition under pressure, with a rather small volume change for unfolding compared to proteins of similar molecular weight.
Particularly, the least effective substance, that is sodium hyaluronate, was injected in a rather small volume only (corresponding, however, to the clinically injected volume, see above), thereby putatively confounding our results.
A large volume of graphitic regions and rather small volume of turbostratic regions were observed in the nanofibers of all heat-treated CNFs and ACNFs.
Although the correction coefficients seem to be relatively small, time-correction is still important because of the rather small volume modifications observed in clinical studies [ 7].
Under these experimental conditions, the use of a rather small filling volume is recommended to increase the accuracy of the measurements.
In analogy to the human situation, where metastasis is a rather late event in disease progression, we resected the transplanted tumors at a rather small tumor volume to provide a longer time of exposure to DTC for the development of metastases.
These products comprised rather small volumes of these substances, in general below 1%.
However, autophagy is a special object for morphometry as autophagic elements usually comprise a rather small proportion of the cytoplasmic volume; therefore, a very large test area must be evaluated for the measurements by the histograms and the dissector technique.
A rather small number of patients was included.
