Isomerization of hop oils is one reason to boil wort for a specified period of time. A side benefit is that unwanted bacteria and yeasts are killed. I suppose you could reverse those two.
The Siebel Institute provides numerous lab services related to malting, malts, hops, water and brewing.
The DMS test is $156 US and requires 2 bottles for samples.
The laboratory services appear to be carried out at (or by?) White Labs out of San Diego, CA.