The phrase "although collected" is correct and usable in written English.
It can be used to introduce a contrast or exception regarding something that has been gathered or assembled.
Example: "Although collected from various sources, the data still lacked consistency."
Alternatives: "even though gathered" or "despite being assembled".
Although collected — most of the pieces at the Wallach are from one collection, that of Paul F. Walter — it was little studied or seen.
Although collected rainwater does not need a high degree of purity for garden or agricultural applications, rainwater collected from unclean surface runoffs is not suitable for drinking or cooking.
On the one hand, although collected at different periods, these data show similarities in the three main characteristics relevant to replacement policy evaluation: file size distribution, temporal locality, and files popularity.
I'd like to convert some of my free time into collecting, but I haven't decided what to get into yet.--L.S. Answer: We recently did a lengthy column on post cards, which, although collected for years, appear to have become quite trendy in the last few years.
These, although collected using different age bands, show a similar population distribution as that found in this sample.
However, Kraft et al. [ 17] reported that some accessions were a different phenotype although collected in Baja California Sur.
Under a federal antiterrorism statute, families can also sue any terrorist organizations deemed responsible, although collecting would be next to impossible.
Such data are limited, however, because of the potential for ecological bias, although collecting detailed patient-level data is often prohibitively expensive.
Although collecting intelligence on "leadership intentions" is what Director of National Intelligence James R. Clapper Jr. has called "a basic tenet" of espionage, the White House is expected to include a new level of review of such collection to assuage allies, sources said.
Although collecting data and measuring results is absolutely essential, it is also a completely useless if you can't determine what must be done after you have gathered all of the facts.
Although collecting molecular data was beyond the scope of this study, examining the links between changes in plant diversity, changes in microbial community structure, and how these changes affect microbial functioning is a key direction for future research [10].
