The phrase "a first sampling" is correct and usable in written English.
It can be used when referring to an initial collection or analysis of data, opinions, or items in a study or research context.
Example: "In this report, we present a first sampling of the survey results to gauge public opinion on the new policy."
Alternatives: "an initial sampling" or "a preliminary sampling".
My companion had never eaten ostrich, and Soho on George seemed like a good place for a first sampling.
This exhibition is only a first sampling — it's fun to open a series of drawers and see the costumes for "Summerspace" — supplemented by material from other sources, not least Rauschenberg's 1950s black-and-white photographs of Cunningham dancing.
For doctors at other hospitals, it was a first sampling of the types of patients — drunken bar hoppers who have gotten into fights or fallen down stairs; young adults who have overdosed on pills; and tourists and residents suffering from more ordinary aches, pains and mishaps — that the future will bring.
The purpose of our investigation was to compare the statistical efficiency of OPSS for selecting satellite imagery segments at a first sampling stage and pixels within the selected segments at a second sampling stage with respect to the benchmark use of simple random sampling without replacement (SRSWOR) at both stages.
A case study is available for French forest soils that have been sampled twice simultaneously on the same sampling grid but with different sampling and analytical strategies: a first sampling for the French soil quality monitoring network (RMQS) and a second one for the European forest monitoring network (ICP Forests level I second survey i.e. Biosoil).
Amphioxus sampling was conducted twice, a first sampling at the end of April 2008 (24th April) and a second sampling at the end of June 2008 (19th June) for radials R3 to R5, but only once for radial R1 and R2 (on 24th April 2008).
Analysis has shown a pronounced order effect, showing a first sample effect overestimation.
In a first sample series, reference samples of pure prepreg and adhesively fixed prepreg samples with different adhesives are investigated.
The third order was selected as a first sample.
Among them, 50 dairy herds underwent a second sampling between 6th December 2007 and 3rd February 2008.
A second sampling technique is solid-phase micro-extraction (SPME).
