Near Infrared (NIR) Strong Field Ionization and Imaging
of C<sub>60</sub> Sputtered Molecules: Overcoming Matrix Effects and
Improving Sensitivity
Andrew Kucher
Lauren M. Jackson
Jordan O. Lerach
A. N. Bloom
N. J. Popczun
Andreas Wucher
Nicholas Winograd
10.1021/ac501586d.s002
https://acs.figshare.com/articles/journal_contribution/Near_Infrared_NIR_Strong_Field_Ionization_and_Imaging_of_C_sub_60_sub_Sputtered_Molecules_Overcoming_Matrix_Effects_and_Improving_Sensitivity/2258923
Strong field ionization (SFI) was
applied for the secondary neutral
mass spectrometry (SNMS) of patterned rubrene films, mouse brain sections,
and Botryococcus braunii algal cell
colonies. Molecular ions of rubrene, cholesterol, C<sub>31</sub> diene/triene,
and three wax monoesters were detected, representing some of the largest
organic molecules ever ionized intact by a laser post-ionization experiment.
In rubrene, the SFI SNMS molecular ion signal was ∼4 times
higher than in the corresponding secondary-ion mass spectroscopy (SIMS)
analysis. In the biological samples, the achieved signal improvements
varied among molecules and sampling locations, with SFI SNMS, in some
cases, revealing analytes made completely undetectable by the influence
of matrix effects in SIMS.
2014-09-02 00:00:00
rubrene
SFI SNMS
mouse brain sections
SIMS
molecule
C 60 Sputtered Molecules
Botryococcus braunii algal cell colonies
SensitivityStrong field ionization
Overcoming Matrix Effects
Strong Field Ionization
NIR
signal