Enantiomers are molecules whose structures are nonsuperimposable mirror images. Enantiomeric molecules have the same chemical and physical properties but may undergo different biological reactions. Therefore, distinguishing between enantiomers using most equipment is difficult. Thus far, enantiomers can only be identified using expensive analytical methods, such as gas chromatography, and active studies are underway on methods that distinguish between enantiomers using inexpensive gas sensors. Various weak enantiomeric gases are generated from living organisms and pharmaceuticals where asymmetric synthesis is performed. We can obtain detailed chemical information about living organisms and spaces by identifying these gases as different components. In this study, we focused on the charge bias caused by the differing geometric structures of enantiomers. We propose a grid that can apply electric fields of various strengths to a gas flow path. We believe that the electrical force acts on the charge held by the gas molecules, steepening the gas sensor output waveform and increasing the output value. We confirmed that molecules with enantiomeric relationships can be identified using grids. This research is expected to enable gas sensors to detect chemical components in more detailed classifications.