One (1) Gas Chromatography–Mass Spectrometry (GC–MS) system with a single quadrupole mass analyser suitable for undergraduate teaching and routine analytical chemistry applications. The system shall combine a gas chromatograph (GC) for separation of volatile and semi-volatile compounds with a mass spectrometer (MS) for qualitative and quantitative analysis. GC–MS technology enables identification, confirmation, and quantification of compounds across a wide range of matrices including environmental, food, pharmaceutical and biopharmaceutical. The system must be robust, easy to operate and suitable for undergraduate teaching laboratories, research projects and routine analytical chemistry applications