The Influence of MS Imaging Parameters on UV-MALDI Desorption and Ion Yield
The Influence of MS Imaging Parameters on UV-MALDI Desorption and Ion Yield
复制标题
MS 成像参数对 UV-MALDI 解吸和离子产率的影响
DOI:
--
复制
发表时间:
2019
影响因子:
3.2
通讯作者:
J. Bunch
中科院分区:
文献类型:
--
作者:
Kenneth N. Robinson;R. Steven;A. Race;J. Bunch
AbstractUltraviolet matrix-assisted laser desorption/ionization mass spectrometry imaging (UV-MALDI MSI) is a widely used technique for imaging molecular distributions within biological systems. While much work exists concerning desorption in UV-MALDI MS, the effects of commonly varied parameters for imaging applications (repetition rate, use of continuous raster mode and raster speed), which determine spatial resolution and limits of detection for the technique, remain largely unknown. We use multiple surface characterization modalities to obtain quantitative measurements of material desorption and analyte ion yield in thin film model systems of two matrix compounds, arising from different UV-MALDI MSI sampling conditions. Observed changes in resulting ablation feature point to matrix-dependent spatial resolution and laser-induced matrix modification effects. Analyte ion yields of 10−9 to 10−6 are observed. Complex changes in ion yield, between spot and raster sampling and arising from varied laser repetition rate and raster speed, are observed.
Graphical Abstract
登录
查看更多内容
影响因子:
4.6
作者:
Niehaus M;Soltwisch J
通讯作者:
Soltwisch J
影响因子:
4.3
作者:
Marcel Wiegelmann;Jens Soltwisch;T. Jaskolla;K. Dreisewerd
通讯作者:
Marcel Wiegelmann;Jens Soltwisch;T. Jaskolla;K. Dreisewerd
影响因子:
7.4
作者:
Soltwisch, Jens;Jaskolla, Thorsten W.;Dreisewerd, Klaus
通讯作者:
Dreisewerd, Klaus
影响因子:
3.2
作者:
Soltwisch;Jaskolla;Dreisewerd
通讯作者:
Dreisewerd
影响因子:
3.3
作者:
Greer T;Sturm R;Li L
通讯作者:
Li L