The phrase "a prevail" is not correct in written English.
It is not usable because "prevail" is a verb and should not be preceded by the article "a."
Example: "We hope to prevail in the upcoming competition."
Alternatives: "to succeed" or "to triumph."
LC-ELSD analysis was performed on an Agilent 1200 LC-Alltech 2000ES ELSD (Agilent, USA) equipped with a Prevail Carbohydrate ES pre-column (7.5 × 4.6 mm × 5 μm), and the targets were separated by a Prevail Carbohydrate ES chromatography column (250 × 4.6 mm × 5 μm) at 30 °C.
Sugars were quantified by high-pressure liquid chromatography (HPLC) using a Waters 600E system controller (Waters Corp. Milford, MA, USA) equipped with a refraction index detector (Waters 410) using a Prevail Carbohydrate ES column (250 × 4.6 mm) at 30°C.
White solid (7 mg, 52%) (retention time 15.1 min on a Prevail C18 5 μ column 250 mm × 4.6 mm, monitored at 242 nm a 40 min linear gradient from 30% A [water] to 95% B [acetonitrile], with the flow rate of 8 ml/min).
DMNB-ponasterone A needs further purification by HPLC due to the impurity in the purchased ponasterone A (8 mg, 57%) (retention time 46.9 min on a Prevail C18 5 μ column 250 mm × 22 mm monitored at 242 nm; a 30 min linear gradient from 95% A [water] to 50% B [acetonitrile], followed by 50% B for 5 min with the flow rate of 8 ml/min).
White solid (9 mg, 65%) (retention time 34.5 min on a Prevail C18 5 μ column 250 mm × 22 mm monitored at 242 nm; a 30 min linear gradient from 95% A [water] to 50% B [acetonitrile], followed by 50% B for 5 min and a 15 min linear gradient from 50% A [water] to 95% B [acetonitrile] with the flow rate of 8 ml/min).
Genotype A prevails in southern, eastern and central Africa.
The critical mutation rate is "the midpoint between the highest rate at where A prevailed and the lowest rate where B prevailed" [ 22].
Altogether, in our study we observed a prevailed shift from plasma acidification towards plasma alkalization over the CVVHD treatment time.
How shall a mortal 'gainst a god prevail?
Could such a ploy prevail?
Instead, a counterargument prevailed, that a community's lifeblood flows from its schools and churches.
