The phrase "a fractionation" is correct and usable in written English.
It can be used in contexts related to the process of separating components of a mixture, often in scientific or technical discussions.
Example: "The process of a fractionation allows for the separation of different substances based on their boiling points."
Alternatives: "a separation process" or "a distillation".
Toward this end we employed a fractionation method of the infected cells based on Streptolysin-O (SLO), a pore-forming cytolysin from Streptococcus pyogenes that selectively bind to cholesterol groups in the eukaryotic plasma membrane [32], [33].
The supernatant was collected (cytosolic fraction) and the pellet was suspended in a fractionation buffer mix (mitochondrial fraction).
Lysates for nuclear and cytoplasmatic fractions were obtained using a fractionation kit (Biovision) following the manufacturer's instructions.
RNA concentrations in the first and last eluted fractions were lower in cells under stress than optimal growth conditions, leading to a fractionation into a total of five fractions instead of seven in optimal growth conditions [ 18].
To achieve this goal, we isolated PLSs through a fractionation procedure based on density-gradient centrifugation.
The standard volume at mean dose of 30 Gy, with a fractionation scheme of 2 Gy in 15 fractions.
A total dose of 60 Gy should be delivered, with a fractionation from 1.8 to 2 Gy per fraction and per day (recommendation).
We chose a fractionation regimen with 54 Gy in 3 Gy fractions to the prostate bed with or without the treatment of the pelvic lymph nodes with 45 Gy in 2.5 Gy fractions.
The hope now, environmentalists say, is to halt work on this project in Paracas, at a fractionation plant that would separate gas liquids and pipe them into a marine terminal.
This leads to isotopic fractionation, the extent of which can be expressed by a fractionation factor, alpha, also known as a separation factor, or enrichment factor.
