کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1196278 | 1492904 | 2010 | 6 صفحه PDF | دانلود رایگان |
The enhancement of the static secondary ion mass spectrometry (SIMS) signals resulting from the injection, closely to the sample surface, of H2O vapor at relatively high-pressure, was investigated for a set of organic materials. While the ion signals are generally improved with increasing H2O pressure upon 12 keV Ga+ bombardment, a specific enhancement of the protonated ion intensity is clearly demonstrated in each case. For instance, the presence of H2O vapor induces an enhancement by one order of magnitude of the [M + H]+ static SIMS intensity for the antioxidant Irgafos 168 and a ∼1.5-fold increase for polymers such as poly(vinyl pyrrolidone).
Graphical AbstractA new protocol based on the use of water vapor flooding is employed to enhance the static-SIMS intensities of organic materials.Figure optionsDownload high-quality image (103 K)Download as PowerPoint slide
Journal: Journal of the American Society for Mass Spectrometry - Volume 21, Issue 12, December 2010, Pages 2005–2010