
Keywords: APPI، photoionization فشار اتمسفر; APCI, atmospheric pressure chemical ionization; APPI, atmospheric pressure photoionization; Cer, ceramide; DESI, desorption electrospray ionization; DHCer, dihydroceramide; DHSM, dihydrosphingomyelin; ESI, electrospray ionization; ELSD, evaporative light