Effectiveness of atomic and polyatomic primary ions for organic secondary ion mass spectrometry

Chris Diehnelt, Michael J. Van Stipdonk, Emile A. Schweikertl

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

With the increased application of polyatomic primary ions for organic secondary ion mass spectrometry, a method to compare the performance of the various available projectiles is needed. In this work, primary ion performance was evaluated based on analyte-specific secondary ion yield, the amount of fragmentation, and the amount of metastable decay induced by each primary ion. These measurements were used to construct a projectile efficiency number for each primary ion applied to a specific analyte. An organic acid, phospholipids, and alkyl sulfates, prepared as multilayer and monolayer surfaces were analyzed with various atomic and polyatomic primary ions. It was found that polyatomic primary ions are best suited for multilayer organic samples whereas atomic primary ions are most effective for monolayer organic samples. Results are compared to other studies that measure the ion formation efficiency of various primary ions.

Original languageEnglish (US)
Pages (from-to)111-122
Number of pages12
JournalInternational Journal of Mass Spectrometry
Volume207
Issue number1-2
DOIs
StatePublished - Apr 12 2001
Externally publishedYes

Fingerprint

Secondary ion mass spectrometry
secondary ion mass spectrometry
Ions
ions
Projectiles
projectiles
Monolayers
Multilayers
Organic acids
Phospholipids
Sulfates
sulfates
fragmentation
acids
decay

Keywords

  • Desorption
  • Metastability
  • Polyatomic primary ions
  • Secondary ion mass spectrometry

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy

Cite this

Effectiveness of atomic and polyatomic primary ions for organic secondary ion mass spectrometry. / Diehnelt, Chris; Van Stipdonk, Michael J.; Schweikertl, Emile A.

In: International Journal of Mass Spectrometry, Vol. 207, No. 1-2, 12.04.2001, p. 111-122.

Research output: Contribution to journalArticle

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