Yes, I did.
I set up a double-blind experiment with mixtures of various iron standards and an “unknown” iron-containing compound. This was years ago, so I may have a few details wrong, but it will get the gist:
I used undergraduates to make the mixtures with random amounts of random selections of the standards. An undergraduate also ordered the “unknown” compound.
We then measured the spectra, along with the spectra of the pure standards (but not the pure “unknown”). The spectra were measured at somewhat different temperatures so that simple linear combination analysis would be of limited use. Three of us then attempted analysis independently: myself, one of my most advanced undergraduates (who did not participate in the preparation of the samples), and a high school student with roughly two weeks training in analysis. We attempted to find what compounds were present, how much of each, and, in the case of the unknown compound, as much as we could suss out structurally.
The results were that we all did OK, but my analyses were the most accurate, the advanced undergraduate less so, and the high school student the least (but still generally in the ballpark).
It was satisfying to know that different analysts could find similar results, that those results reflected reality, and that those with greater expertise did achieve more accurate results.
If I recall correctly, I didn’t publish because the undergraduate who prepared the pure standards did a lousy job (pinholes, etc.), which distorted our measurement of the standards enough to make it more difficult to evaluate our analyses. Still, it showed things work in principle.
Best,
Scott Calvin
Lehman College of the City University of New York