Sensitivity enhancement using chemically reactive gas cluster ion beams in secondary ion mass spectrometry (SIMS)
Sensitivity enhancement using chemically reactive gas cluster ion beams in secondary ion mass spectrometry (SIMS)
复制标题
在二次离子质谱 (SIMS) 中使用化学反应气体团簇离子束增强灵敏度
DOI:
10.1002/sia.7054
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发表时间:
2022
影响因子:
1.7
通讯作者:
Lagator M
中科院分区:
文献类型:
--
作者:
Lagator M
We report for the first time on significant molecular secondary ion yield increases by modifying the chemistry of a water cluster primary ion beam. This was demonstrated using 70‐keV ion beams of 0.15 eV/amu. For the neutral drug Bezafibrate, secondary ion yield enhancements ×5–10 were observed when replacing the Ar carrier gas in a water gas cluster ion beam (GCIB) source with a mixture containing 12% CO2and 2% O2in Ar. For the cationic drug Ranitidine, the ion yield enhancements using the CO2‐containing carrier gas were up to ×20–50 in positive mode and ×2–4 in negative mode. The extent of molecular fragmentation was very similar from both cluster beams. We conclude that additional chemically reactive species are present in the impact zone using the (H2O/CO2)nprojectile, which promote the formation of secondary ions of both polarity through projectile impact‐induced chemical reactions. This methodology can be applied to further extend the capabilities of high‐resolution 3‐dimensional mass spectral imaging using reactive GCIB‐SIMS.
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DOI:
--
发表时间:
2011
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
--
作者:
S. Sun;H. Urbassek
通讯作者:
H. Urbassek
DOI:
10.1002/rcm.3922
发表时间:
2009
期刊:
Rapid communications in mass spectrometry : RCM
影响因子:
--
作者:
K. Mochiji;M. Hashinokuchi;K. Moritani;N. Toyoda
通讯作者:
N. Toyoda
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
S. Torii;T. Seki;T. Aoki;J. Matsuo
通讯作者:
J. Matsuo
影响因子:
1.8
作者:
Angerer, Tina B.;Blenkinsopp, Paul;Fletcher, John S.
通讯作者:
Fletcher, John S.
影响因子:
8
作者:
N. Winograd
通讯作者:
N. Winograd