The phrase "a maximum of two samples" is correct and usable in written English.
It can be used when specifying a limit on the number of samples allowed in a particular context, such as research, testing, or data collection.
Example: "For this experiment, participants are allowed to submit a maximum of two samples for analysis."
Alternatives: "no more than two samples" or "up to two samples".
A maximum of two samples per field was collected.
The combination which yielded the highest positivity (45.4%), using a maximum of two samples and incurring minimal extra workload and delay, was a direct smear for the first sample and bleach sedimentation for the second.
Although we collected repeated residential dust samples over long time intervals (up to 8 years) our sampling strategy was limited to a maximum of two samples per household, and we did not collect repeat samples from homes over short intervals of time.
Measurements of soil temperature, moisture, carbon and nitrogen content in the surface 30 cm soil layer displayed the lowest degree of spatial variation: requiring a maximum of seven samples to estimate mean values within 10% confidence intervals with 95% probability.
This sample size would achieve at least 80%% power to detect a difference of 454 gram force or 4.45 N (using an adjusted Tukey test) if the within-pig standard deviation (SD) was at most 420 gram force (4.12 N), assuming 94%% efficiency with the incomplete block design of having five samples to choose from with a maximum of four samples per pig.
A maximum of three samples were drawn from each volunteer, with a time lapse of at least one week between draws.
At least one water sample was taken in each cluster, with a maximum of six samples in a cluster.
Random slopes were not considered because a maximum of four samples was collected from any one individual.
We handled a maximum of nine samples (eight maxilloturbinate samples and one negative control) during each extraction day to reduce the potential for cross-contamination.
Models were constrained to include a maximum of three samples collected within 4 h after the intake to maintain clinical applicability for patients in the outpatient department.
The equations were constrained to include a maximum of three samples collected within 4 h after the intake to maintain clinical applicability.
