The disclosure describes an apparatus including a substrate and a gas chromatograph having a fluid inlet and a fluid outlet and being mounted to the substrate. A detector array having a fluid inlet and a fluid outlet and is mounted to the substrate, and the fluid inlet of the detector array is fluidly coupled to the fluid outlet of the gas chromatograph. A control circuit is coupled to the gas chromatograph and to the detector array such that the control circuit can communicate with the gas chromatograph and to the detector array, anda readout circuit is coupled to the detector array and to the control circuit such that the readout circuit can communicate with the control circuit and the detector array. Other embodiments are disclosed and claimed.本發明所述為一種氣體分析系統、以及使用該氣體分析系統之方法及其相關應用。氣體分析裝置包括一基板、前濃縮器、氣相層析儀、感測器陣列、控制器及讀出電路。其中前濃縮器具有一流體入口及一流體出口且結合於基板上;氣相層析儀具有一流體入口及一流體出口且結合於基板上;一感測器陣列,具有一流體入口及一流體出口且結合於基板上,感測器陣列之流體入口係流體連接於氣相層析儀之流體出口;一控制器,耦接於氣相層析儀及感測器陣列,以使控制器可與氣相層析儀及感測器陣列進行傳輸;以及一讀出電路,耦接於感測器陣列及控制器,以使讀出電路可與感測器陣列及控制器進行傳輸。100...氣體分析系統101...流體控制組件102...基板104...過濾器與控制閥門元件106...前濃縮器108...氣相層析儀110...感測器陣列112...泵浦113...罩體114...入口116、118、120、122...通道124...出口126...控制器128...讀出分析電路130、132...電路佈線