The phrase "a bulk sample of each" is correct and usable in written English.
It can be used when referring to a large quantity of samples taken from multiple sources for analysis or testing purposes.
Example: "For the study, we collected a bulk sample of each type of soil to ensure accurate results."
Alternatives: "a large sample of each" or "a substantial sample of each".
Since a bulk sample of pooled individuals was used for each species, it was important that the sequences sampled from the pool were a random selection of those from all individuals.
For the RIL populations, individual whole crushed seeds for each soybean line were used as samples for fatty acid determination, except the FAD2-1aabb lines from population 3 produced in Costa Rica, for which a bulk sample of 5 seeds was analyzed for each line.
Gibson, J. et al. Simultaneous assessment of the macrobiome and microbiome in a bulk sample of tropical arthropods through DNA metasystematics.
This result is new evidence for hexagonal symmetry in a bulk sample of PAN.
One impediment to this is the so-called "Nanostructure Problem". Billinge is being honored for his role in both highlighting this problem and providing seminal contributions to solving it for a bulk sample of nanoparticles.
Soil pH (measured potentiometrically in a H2O suspension), soil nitrogen (N) and carbon (C) contents (measured with Vario ELIII elemental analyzer, Elementar, Hanau, Germany), and the soil C N ratio were determined from a bulk sample of nine soil cores (0 10 cm) per plot, taken in summer 2009.
Results are compared to a bulk sample of the same polystyrene using a similar experimental protocol and analysis procedure in an effort to determine the effects of nanoconfinement.
where Uparticle is the total energy (kinetic plus potential) of a polymer particle, and Ub is the total energy in a bulk sample of material with the same number of CG beads.
We first focused on a bulk sample of adults from the Grand River in Elora as a direct comparison with our earlier experiment involving pooled samples.
The sample was then exposed to the same heat treatment used to form the nanoparticles (300 °C for 3 h followed by 800 °C for 8 h) producing a bulk sample of Y2O3 Er.
