The phrase "a representative area of" is correct and usable in written English.
It can be used when referring to a specific section or portion that exemplifies a larger whole, often in contexts like research, surveys, or discussions about geography.
Example: "The study focused on a representative area of the population to ensure accurate results."
Alternatives: "a typical section of" or "a sample region of".
The TMA cores measured 2 mm in diameter and included a representative area of the tumour; up to three cores of each case were represented in the TMA.
The inset shows a representative area of the density map superimposed with the atomic model.
The inset shows a representative area of the density map superimposed with the molecular model.
The molecular model is superimposed onto a representative area of the cryo-EM density.
The Sherwood number averaged over a representative area of
Forest-transition calculations are subsequently applied to a representative area of the Cape Breton Highlands as a demonstration of the landscape application of the ANN.
Within an hour after lobectomy/pulmectomy, a biopsy from a macroscopically representative area of the tumor was selected by a lung cancer pathologist (most often LJ) and freshly frozen in −80 °C.
Briefly, a donor core from a morphologically representative area of donor tissue block was punched using a 1 mm diameter needle.
A representative area element approximately of size 50 μm × 50 μm is chosen to represent the microstructure of the composite.
A blinded observer set a random representative area of the photographed cell culture (as seen in Figure 7b) using Adobe Photoshop Lightroom Software (Version 5.2, 2013; Adobe, San José, CA, USA).
TMA blocks were obtained by punching a tissue cylinder (core) with a diameter of 1.5 mm through a histological representative area of each "donor" tumor block, which was then inserted into an empty "recipient" TMA paraffin block using a manual tissue arrayer, as described previously.
