Quantitative GC-MS Testing of Eucalyptol and Thymol in Aqueous Consumer Product

I’m looking for a qualified laboratory to perform quantitative GC-MS analysis of eucalyptol and thymol in an aqueous consumer product. Testing should use headspace solid-phase microextraction (SPME) or a suitable liquid-liquid extraction method for the quantitative analysis of these volatile terpenoid/monoterpene compounds.

The laboratory should be able to provide quantitative results for eucalyptol and thymol and advise on the appropriate sample requirements and analytical method.