The phrase "adding a small volume" is correct and usable in written English.
It can be used in contexts where you are discussing the process of increasing the amount of a substance or material, often in scientific or culinary settings.
Example: "When preparing the solution, be careful when adding a small volume of the concentrated acid to avoid any reactions."
Alternatives: "increasing a minor amount" or "introducing a little volume".
We have shown that adding a small volume change to classical rubber elastic models can aid in analytical and numerical simulations of polymer structures.
The level II composite was obtained by adding a small volume fraction (vf) of the ball-milled level I composite to Mg using the powder metallurgy route followed by microwave-assisted rapid sintering and hot extrusion.
Chemical reduction, in order to generate the reduced Fe(II)/Fe(III) in the FeS clusters, was performed by adding a small volume of anaerobic sodium dithionite solution to the protein solution under a weak stream of argon gas (20-fold excess dithionite with respect to the protein).
Osmotic stress (0.4 M NaCl) was produced by adding a small volume of concentrated NaCl solution to the yeast culture 10 min before cross-linking with formaldehyde.
To examine the average size of these particles, a bright-field microscopy technique was performed using a Leica DMLM microscope by adding a small volume of spheres on the surface of a microscope slide.
Co II Cbl and Co II Cbi+ were prepared by adding a small volume of saturated HCOOK to degassed solutions of H2OCbl+ and (H2O 2Cbi2+, respectively, and the progress of the reduction was monitored spectrophotometrically.
Schöniger flask combustion involves a special Erlenmeyer flask to which is added a small volume of a suitable solution (often a dilute sodium carbonate or sodium hydroxide solution) that absorbs and retains the inorganic analytes.
In contrast to aqueous procedures, we do not adjust the first point to a specific pH and only rarely will initially add a small volume of the opposite titrant.
After 4 hours, wash the cells twice with PBS and add a small volume (3 ml) of culture medium to avoid excessive dilution of autocrine growth factors produced by the RCE cells.
However, in previously conducted experiments I did not observe unacceptable froth and turbidity when I added a small volume of E. coli cells beneath liquid following the 2011 VCC method, and I had already proven that the 2005 VCC method resulted in cross-contamination due to aerosol formation based on experiments I conducted in 2013.
Water does not compress, nor does the coconut hull stretch appreciably; so if the coconut is full and you add a small volume of steel, via the tip of the knife blade, there is no place for the water to go except out, by any means necessary!
