公开(公告)号：US11821868B2

公开(公告)日：2023-11-21

申请号：US17205528

申请日：2021-03-18

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Ashley M. Wittrig ,  Kuangnan Qian ,  Thomas R. Fredriksen

IPC: G01N27/626 ,  H01J49/16 ,  G01N1/38 ,  H01J49/38

CPC classification number: G01N27/628 ,  G01N1/38 ,  H01J49/165 ,  H01J49/38

Abstract: A method for detecting and analyzing olefins in petroleum by electrospray ionization mass spectrometry can include obtaining a hydrocarbon sample comprising at least about 90 wt % of saturate compounds; producing a solution comprising the hydrocarbon sample and a metal salt, the metal salt comprising a metal ion; forming olefin-metal ion complexes by electrospray ionization; and detecting the olefin-metal ion complexes using mass spectrometry.