The thermal conductivity detector of gas chromatograph was used to determine the content of ethylene oxide and carbon dioxide mixed sterilization gas.The liquid ethylene oxide-carbon dioxide mixture was uniformly converted into gas through the sampling system,and the hexaway valve was switched to feed the ethylene oxide-carbon dioxide component into the detector.The results show that the sampling method and chromatographic analysis method have the characteristics of good repeatability,short analysis time and high accuracy.
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