'in any samples' is correct and usable in written English.
You can use it to refer to a collection or a group of things, often samples of something such as food. For example, "The taste testers tried samples of the new muffins in any samples they were given."
Japan, which largely phased out the chemical in 2001, was the only country in which traces did not turn up in any samples.
This attempt to desensitise public opinion over the creature's plight follows testing by the Royal Zoological Society of Scotland, which seemed to indicate that no trace of the pure Scottish wildcat was found in any samples taken over a 30-year period.
AFG1 and AFG2 were not detected in any samples.
Ochratoxins, T-2 toxins, and zearalenone were not detected in any samples of whole corn.
TDCIPP and TCEP were not detected in any samples (N = 29) after the introduction of new couches.
Results of the study showed that trimethoprim and ibuprofen were not detected in any samples of soil and plant.
The priority hazardous metals (Cd, Pb and Ni) and Co were not taken under consideration for soil characterization as their concentrations were below the detection limits (mg/kg): 1.70 Cd, 50 Pb, 12 Ni and 1.70 Co in any samples.
Although no Cowdry bodies were seen in any samples, individuals from all species except M. discors, P. subtriangulata and D. anus exhibited some of the other features (albeit sparsely and atypically) and 75 samples out of 885 examined were deemed worthy of further investigation.
Necrosis was not observed in any samples.
There was no evidence for mixed infections in any samples examined by direct PCR sequencing.
No viral RNA was detected in any samples (swabs, feces, or water) for two negative control ducks co-housed in a nearby pen.
