Laser desorption/ionization mass spectrometry of lipids using etched silver substrates.
Laser desorption/ionization mass spectrometry of lipids using etched silver substrates.
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使用蚀刻银基底对脂质进行激光解吸/电离质谱分析
DOI:
10.1016/j.ymeth.2016.01.014
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发表时间:
2016
期刊:
影响因子:
4.8
通讯作者:
Dreisewerd
中科院分区:
文献类型:
--
作者:
Schnapp;Niehoff;Dreisewerd
Silver-assisted laser desorption/ionization mass spectrometry can be used for the analysis of small molecules. For example, adduct formation with silver cations enables the molecular analysis of long-chain hydrocarbons, which are difficult to ionize via conventional matrix-assisted laser desorption ionization (MALDI). Here we used highly porous silver foils, produced by etching with nitric acid, as sample substrates for LDI mass spectrometry. As model system for the analysis of complex lipid mixtures, cuticular extracts of fruit flies (Drosophila melanogaster) and worker bees (Apis mellifera) were investigated. The mass spectra obtained by spotting extract onto the etched silver substrates demonstrate the sensitive detection of numerous lipid classes such as long-chain saturated and unsaturated hydrocarbons, fatty acyl alcohols, wax esters, and triacylglycerols. MS imaging of cuticular surfaces with a lateral resolution of a few tens of micrometers became possible after blotting, i.e., after transferring lipids by physical contact with the substrate. The examples of pheromone-producing male hindwings of the squinting bush brown butterfly (Bicyclus anynana) and a fingermark are shown. Because the substrates are also easy to produce, they provide a viable alternative to colloidal silver nanoparticles and other so far described silver substrates.
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影响因子:
2
作者:
Jaskolla, Thorsten W.;Onischke, Kristin;Schiller, Juergen
通讯作者:
Schiller, Juergen
影响因子:
3.7
作者:
J. Yew;K. Dreisewerd;C. C. de Oliveira;W. Etges
通讯作者:
W. Etges
影响因子:
7.4
作者:
Dutta, TK;Harayama, S
通讯作者:
Harayama, S
DOI:
10.1002/rcm.447
发表时间:
2001
期刊:
Rapid communications in mass spectrometry : RCM.
影响因子:
--
作者:
O'Connor,PB;Costello,CE
通讯作者:
Costello,CE
影响因子:
2
作者:
Julia K Pruns;J. Vietzke;M. Strassner;C. Rapp;U. Hintze;W. König
通讯作者:
W. König