Sorbent tubing aids in the analysis of trace organics
This company’s PAH Tube is a thermal desorption tube that enables reliable analysis of polycyclic aromatic hydrocarbons (PAHs), to improve the detection of these trace organic compounds using the company’s Unity or TD-100 gas-chromatography and mass-spectroscopy analytical systems. PAHs are subject to very low limits worldwide because of their carcinogenic properties, yet they tend to be very challenging analytes to accurately detect, says the company. Existing, solvent-based techniques that are used to analyze PAH levels in air are prone to loss of analytes, but the PAH thermal-desorption tubes are said to ensure the transfer of even the heaviest PAHs from the sorbent-sampling tube into the gas chromatography system. — Markes International, Llantrisant, U.K.