The phrase "additional samples of" is correct and usable in written English.
It can be used when referring to extra examples or instances of something, often in a research or analytical context.
Example: "In order to validate our findings, we will need additional samples of the data collected from the experiment."
Alternatives: "further examples of" or "more instances of".
In addition to the fasting samples we obtained 10 additional samples of plasma glucose and FFAs measured within two time intervals (6 8 PM, 2 4 AM).
We administered this provisional survey to three additional samples of managers.
We replicate this in 12,831 participants from five additional samples of Northern and Southern European origin (−1.0 s.d. (s.e.=0.173), P-value=7.32 × 10−9).
Ms. Sullivan said it took more than two months to get her test results back from Genomic Health, instead of the two weeks advertised, because additional samples of her tumor were needed.
Additional samples of each SB product were also incubated for 12 h in the rumen; the residues from these bags were transferred to mobile bags, soaked in pepsin HCl, and then used for determination of intestinal digestibility.
To genotype these allelic deletions in additional samples of P. falciparum, PCR protocols were developed to amplify both segments, which confirmed that they are mutually exclusive among 13 culture adapted P. falciparum laboratory lines of diverse geographical origins (Supplementary Table S2).
Additional samples of conjunctiva containing oil droplets were excised for pathologic examination.
For this purpose, the Department of Health has asked that additional samples of fish obtained on June 9, 2010 be analyzed by our contract lab.
Additional samples of benthic microbial mats were collected to use as starting materials for culturing cyanobacteria biofilms to be used in laboratory test tube experiments.
With the additional samples of Broussonetia sensu Corner (1962), the overall phylogenetic relationships of current analyses are congruent with Clement and Weiblen (2009), with samples of Broussonetia sensu Corner (1962) placed in tribe Dorstenieae (Fig. 2).
To investigate the effects of post-processing treatment on both optical and electrical effects, additional samples of ITO films on sodalime glass (SLG) substrates were processed using a different instrument [33] to obtain a pair of film samples with varying thicknesses from 10 to 50 nm in steps of 10 nm.
