We propose to develop a hybrid leak detection system, utilizing real-time multisensory system and a compact gas chromatograph (GC) integrated in a single unit. The key advantages of our GC technology are utilization of scrubbed ambient air as a carrier gas and utilization of novel multisensory highly integrated platform as a GC detector. The outcome of this technology, is the ability to monitor a very broad range of analytes from light gases to heavy aromatic hydrocarbons on a relatively short and compact GC column in a short period of time.