Sampling Accessories: SPE-tD

SPE-tD cartridge for extraction of organic compounds from liquid matrices

Markes SPE-tD cartridges are poly-dimethyl siloxane (PDMS) coated for solid phase extraction of less volatile compounds in aqueous samples – solutions and emulsions.  Clean cartridges are simply placed into the liquid sample, held at a controlled temperature and agitated.  Volatile and semi-volatile organics partition between the PDMS coating and the liquid sample.  The cartridges are subsequently rinsed with distilled water, dried and analysed by thermal desorption.

SPE-tD provides a convenient alternative to conventional extraction and distillation methods for less volatile organic compounds in aqueous samples. The technique provides complementary information to headspace or purge-and-trap analysis of volatile components in the same liquid sample. 

For part numbers and pricing please contact your local Markes distributor

Relevant technical support publications from Markes International can be automatically downloaded from this web site (registration required). Examples include:

• TDTS 60 - The complementary role of thermal desorption alongside other sample preparation / introduction technologies for GC

Markes International works in collaboration with Frontier Laboratories Ltd, Japan for SPE-tD