The phrase "a diluted sample of each" is correct and usable in written English.
It can be used in contexts where you are referring to a sample that has been made less concentrated, typically in scientific or analytical discussions.
Example: "For the experiment, we prepared a diluted sample of each solution to ensure accurate measurements."
Alternatives: "a weakened sample of each" or "a less concentrated sample of each".
This chapter also explains ferrography, which is a technique of passing a diluted sample of the lubricating oil over a magnet to extract ferrous particles.
Small agglomerates due to the network formation are still visible (marked fields).b TEM micrograph (bright field image) of a diluted sample of hybrid (1) showing isolated Au nanocrystals of spherical shape and average diameter of about 2 nm.
Then, the fluorescence signal of a 1.0 × 10/mL nanoparticle suspension (concentration calibrated against a diluted sample of a known concentration of 100 nm Orange FluoSpheres via single-particle enumeration using HSFCM) was compared with the calibration curve to determine the equivalent concentration of AF532 fluorochrome.
Figure 1a shows a low-resolution bright-field (BF TEMM image of a very diluted sample of hybrid (1).
Either 20 μl of the standard mixture or an individual, diluted sample was then pipetted onto each of three replicate chips.
The injection of 50 µl of an hypoxanthine solution (34 mg ml−1) into a mixture composed of 25 µl of diluted sample, 165 µl of a 100 mM phosphate buffer (pH 7.8) containing 0.6 mM EDTA and 0.01% bovine serum albumin (BSA), 5 µl 0.8 µM mCLZm and 5 µl xanthine oxidase (34.5 mU ml−1) initiated the light emission.
Serum samples were 2-fold serially diluted 6 times (1 50 1 1,600) in minimal essential medium, and 1 mL of diluted sample was added to each well of a 24-well culture plate.
A volume of 500 μL of each diluted sample was mixed with 1 mL of 20 mM DPPH in 80% ethanol.
The absorbance (A) of the diluted sample was then calculated as follows: A = A 510 nm ‒ A 700 nm pH 1.0 ‒ A 510 nm ‒ A 700 pH 4.5.
Controls were made by addition of diluted sample after addition of ruthenium red.
