Electrospray ionization and atmospheric pressure chemical ionization are two methods that are used to introduce the eluate from the liquid chromatography column into a mass spectrometer. which ionization method typically requires analyte ions to be in solution prior to reaching the interface between the columrn in liquid chromatography and the mass spectrometer? o atmospheric pressure chemical ionization o neither of the interfaces o electrospray how are neutral species in solution converted to gaseous ions in the other ionization ucthod? o a high voltage is applied to a needle in the path of the aerosol. an electric corona forms around the charged needle which injects electrons into the acrosol and creates ions. o neutral species are exposed to high energy protons which cause ionization by removing an clectron from neutral molecules. o analyte molecules are bombarded with 70 ev electron 。the other interface does not convert neutral species in solution to gaseous ions.