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@ARTICLE{Becker:10221,
author = {Becker, J. S. and Niehren, S. and Matusch, A. and Wu, B.
and Hsieh, H.F. and Kumtabtim, U. and Hamester, M. and
Plaschke-Schlütter, A. and Salber, D.},
title = {{S}caling down the bioimaging of metals by laser
microdissection inductively coupled plasma mass spectrometry
({LMD}-{ICP}-{MS})},
journal = {International journal of mass spectrometry},
volume = {294},
issn = {1387-3806},
address = {[S.l.]},
publisher = {Elsevier Science},
reportid = {PreJuSER-10221},
pages = {1 - 6},
year = {2010},
note = {The authors would like to thank A. Zimmermann
(Forschungszentrum Julich) for technical assistance during
the LMD-ICP-MS measurements. Bei Wu thanks the Alexander von
Humboldt foundation for financially supporting her
postdoctoral studies on nano-LA-ICP-MS.},
abstract = {Laser ablation inductively coupled plasma mass spectrometry
(LA-ICP-MS) has been established as a powerful quantitative
elemental imaging technique in routine mode for biological
tissue with a spatial resolution of 12-160 mu m. Several
applications necessitate an improved spatial resolution of
LA-ICP-MS at the low micrometre scale and below. To achieve
the improvement of spatial resolution of LA-ICP-MS we
created a new experimental arrangement by coupling a laser
microdissection system (LMD) used for laser ablation of
tissue with a sensitive quadrupole-based inductively coupled
plasma mass spectrometer for the subsequent analysis of
ablated material. A flat laser ablation chamber made of
glass was inserted into the LMD, fitted to the microscope
slide with the specimen. The biological tissue fixed on the
glass slide was ablated using the focused solid-state Nd:YAG
laser of the LMD. The laser ablated material was transported
by argon as carrier gas into the inductively coupled plasma
of the mass spectrometer and analysed according to the
mass-to-charge ratio. Using this novel LMD-ICP-MS
arrangement, in initial experiments ion signals of 63Cu* and
65Cte were measured from a 30-p.m-thick cryosection
impregnated with a droplet of a Cu solution. A spatial
resolution of about 3 pm was obtained using the modified LMD
system coupled to the ICP-MS. Laser-induced mass
spectrometric measurements of metal distributions can be
performed together with simultaneous inspection of the
tissue section via the microscope of the LMD and be combined
with other modalities of the LMD system. In future, a more
powerful laser in the LMD apparatus will allow ablation down
to the sub-micrometre scale to study the elemental
distribution in small tissue sections. (C) 2010 Elsevier By.
All rights reserved.},
keywords = {J (WoSType)},
cin = {INM-2 / ZCH / INM-4},
ddc = {530},
cid = {I:(DE-Juel1)INM-2-20090406 / I:(DE-Juel1)ZCH-20090406 /
I:(DE-Juel1)INM-4-20090406},
pnm = {Funktion und Dysfunktion des Nervensystems (FUEK409) /
89573 - Neuroimaging (POF2-89573)},
pid = {G:(DE-Juel1)FUEK409 / G:(DE-HGF)POF2-89573},
shelfmark = {Physics, Atomic, Molecular $\&$ Chemical / Spectroscopy},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000279462700001},
doi = {10.1016/j.ijms.2010.03.013},
url = {https://juser.fz-juelich.de/record/10221},
}