[praptak]

My relative is a chemistry professor who used to manage a mass spectrometry lab. Pharmaceutical companies sent them samples when something went wrong. They have their own spectrometers but interpreting wrong results is not always easy.

Sometimes it included some cool detective work. In one case they were able to track the contamination down to post packaging. A component of the sticker glue diffused through the wall of the plastic bottle and contaminated the stuff contained therein.

So except for an excuse to tell this story my point is that maybe you can outsource the analysis. I admit I haven't checked if the labs accept samples from random people. In theory that should be possible.