In a Gas Chromatograph Mass Spectrometer (GC-MS) the sample is injected into a heated inlet where it is vaporized, and then transferred into a chromatographic column. Different compounds are separated in the column, primarily through their physical interaction with the walls of the column. Once separated the compounds are fed into a detector. GC-MS uses a Mass Spectrometry detector for identification of compounds. Sample compounds exiting the column are ionized and passed through a magnetic field. This magnetic field separates the ionized compounds based on their electric charge to mass ratio. This method of analysis can be used for the determination of a variety of volatile compounds including oak aromas, 4-ethylphenol/4-ethylguaicaol (4-EP/4-EG), and haloanisoles such as TCA.
Carbaryl is an insecticide that can be found in products such as Sevin, Adios, and Carbamec. Testing is usually performed for export or regulatory purposes. For more information please visit National Pesticide Information Center
We achieve economies of scale here at ETS based on the volume of samples
processed at a given time. As a consequence we are pleased to pass these
savings on to our customers, offering discounts for multiple sample
submissions. These discounts apply only to samples submitted at the same