The phrase "a further fraction" is correct and usable in written English.
It can be used when discussing a portion or segment that is additional to what has already been mentioned or considered.
Example: "After analyzing the initial data, we found a further fraction that contributed to the overall results."
Alternatives: "an additional portion" or "a subsequent segment".
However, a further fraction of AMS fibre lowered these mechanical characteristics.
Specifically in relation to roots, a further fraction of carbon use must be considered, namely the energy requirement for active ion uptake (Van der Werf et al., 1988).
We then estimated the costs of those effects and subsequently applied a further fraction to parse out the cost of anthropogenic methyl mercury exposure resulting from emissions of American electrical generation facilities.
In any case, the novel reaction pathway is energetically more favorable for the energy-deprived metabolism of a sulfate-reducing bacterium: It probably requires one ATP equivalent for acetone activation and a further fraction of an ATP equivalent for CO2 reduction to CO employing an Rnf complex to form acetoacetylCoA.
As many physicians from the original sample turned out to be retired, dead or working outside Maputo upon contact, we proceeded to identify a further sampling fraction.
To determine which of the identified proteins is likely to contribute to the nsph stimulatory effect of nsph-CM, we further fractionated fractions A and B (Fig. 2A).
Then a further 18 fractions were eluted with stationary phase within a further 44 min with fresh stationary phase, still in the ascending mode.
Second, to avoid the interference impairments to the PUs and among SUs, we assume that the system owner schedules at most one SU to a given band n and that such a band cannot be further fractioned.
The EEP was further fractioned using a liquid-liquid extraction technique with hexane to generate a polar fraction (P-Fr) and H-Fr.
The DS7 fraction was further fractioned using affinity chromatography on a benzamidine sepharose column).
Upon setting aside 10.00 g of the methanol extract for further testing, the balance 220.10 g of methanol extract was further fractioned using hexane to give a hexane-soluble extract (17.50 g, 7.95 %) and hexane-insoluble residue.
