High resolution/accurate mass tandem MS of isotopically complex cluster ions from the artists’ pigment lead white

Michael P. Napolitano, Maria C.Prieto Conaway, Ping Chung Kuo, Julie Arslanoglu, Richard A. Yost

研究成果: Article


The pigment lead white ((PbCO3)2·Pb(OH)2) was analyzed by LDI-MS/MS and LDI-Orbitrap-MS/MS for the first time. The elucidation of formulae from a suite of isotopically complex cluster ions was obtained from low- and high-resolution full- and tandem-mass spectra in concert with both deductive and inductive reasoning. The unique isotopic pattern of lead was used both to delineate the full-scan spectrum into superclusters and to identify the monoisotopic mass of each cluster, from which a lead-limited, accurate formula could be derived. Chemical formulae for the clusters of lead white followed the form PbxOyHz. Also, the in situ detection of lead white by LDI-MS was achieved for cross sections of painted works of art.

頁(從 - 到)19-26
期刊International Journal of Mass Spectrometry
出版狀態Published - 2019 五月


All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry