as much as I know, You can check You r testosterone level, but thats it.. The problem is that is not simple to extract sweat compounds, and such tests is not cheap.. I do not think, that You can apply for this one in Your local health dep. Then, it is not just only signature, that counts, temperature, humidity, sort of food, up-wind, UV radiation, soup that you using, and so-one.
Not a massspectrometry, but chromatography, probably fluid one.
/Bubu
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