大气压化学电离(APCI) HPLC Nebulizer gas inlet Vaporizer High wattage heater Dielectric capillary Corona discharge needle 23:12:59 23:12:59 大气压化学电离（ APCI ） Dielectric capillary High wattage heater HPLC inlet Corona discharge needle Vaporizer Nebulizer gas + + + + + + + + + + + + + + + + + + + + + + +