The Wasson-ECE carburetor system is a self-contained device for vaporizing samples of liquefied petroleum gas (LPG), such as C3 and C4 hydrocarbon mixtures, for gas phase analysis on a gas chromatograph (GC). The system is designed with 35? L Ultra-low internal volume and includes a user optional heater. A separate heater maintains this temperature through a heated transmission line to prevent condensation during sampling on the GC.