"The PLIS/HPLIS system is intended for the introduction of "Pressurized Liquid Samples" into On-Line,At-Line or laboratory based gas chromatographs.

For difficult to chromatograph samples such as broad boiling range analytes in light condensates, viscous or highly polar samples, HPLIS is the system of choice. For samples lighter than C18 or equivalent, PLIS will work very well."