The phrase "at determined time points" is not correct in standard written English.
You can use it when referring to specific intervals or moments in a study or experiment, but the word "determined" should be replaced with "determinate" or "specific."
Example: "The data was collected at specific time points throughout the experiment."
Alternatives: "at specified time intervals" or "at designated time points."
Samples were centrifuged at 10,000 g for 15 min at determined time points.
Cells were incubated with 5-bromo-2-deoxyuridine (BrdU) 6 hrs before harvesting, BrdU labeled cells harvested at determined time points (0 hr, 24 hrs and 48 hours) and stained with antibodies to monitor replicated DNA.
At determined time points (0.5, 2, 4, and 6 h), the rats were sacrificed, and the tissues including the heart, liver, spleen, lung, kidney, and brain were collected, weighted, and frozen at −20 °C until further analysis.
At determined time points, 0.1 ml of the cultures were spread on blood agar plates and incubated over night at 37°C.
Compared to an earlier reported IC50 of RM2 (7.7 ± 3.3 nM) [12] we observed a slightly higher IC50 of 15 ± 3.5 nM for our bimodal imaging agent BODIPY-BBN 5. We then determined the stability of our imaging tracer in human serum (37 °C) at pre-determined time points showing >90%% intact fluorescent imaging agent after 60 min of incubation (Additional file 1: Figure S6).
In vitro bioactivity and biodegradation evaluations were carried out by submerging the scaffolds in simulated body fluid (SBF) at pre-determined time points.
Mice were euthanized at pre-determined time points between 30 min and 22 h after injection of the radioconjugate.
At pre-determined time points post-infection rats were euthanized with sodium pentobarbital (55 mg/kg).
Keratinocytes were harvested at pre-determined time points, split into several aliquots, and pelleted.
The generation of ONOO− by b.End3 cells was then assessed at pre-determined time points.
Study 1: cattle culled at pre-determined time points post dosing.
