Simple and Reliable Quantitation of ppt-level PAHs in Air by TD–GC–MS
19 Feb 2016This application note from Markes International showcases their new sorbent tube which can be used to analyze harmful air pollutants such as polycyclic aromatic hydrocarbons. The optimized method explained in this note has increased extraction efficiency, absence of a dilution stage and more efficient transfer of compounds leading to overall increased sensitivity.
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ACTI-VOC
Markes International LtdACTI-VOC™ is a robust low-flow pump for sampling vapour-phase organic compounds (VOCs) onto sorbent tubes for subsequent analysis by thermal desorption (TD). Being lightweight, easy-to-use and intrinsically safe, ACTI-VOC is ideal for personal monitoring and a wide range of other air and gas sampling applications. Optimised for thermal desorption tubes Unlike other personal monitoring pumps on the market, ACTI-VOC is optimised for sampling onto thermal desorption tubes, and automatically compensates for different impedances, ensuring constant flow rates whatever the sorbent packing. Product highlights • Optimised for sampling onto thermal desorption tubes • Compatible with any thermal desorption tube (up to a max. flow of 350 mL/min) • Constant-flow sampling from 20–200 mL/min • Constant-pressure sampling from 1–350 mL/min • Simple screw-operated flow adjustment makes ACTI-VOC easy to calibrate • Intrinsically safe (ATEX-approved) • Long battery life ensures stable performance for over 8 hours • Pocket-sized, lightweight and easy to use • Supplied in a convenient carry-case with charger and accessories