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Comparison of laser microprobe mass spectrometry (LMMS) and micro particle induced x-ray emission (micro-PIXE) for the analysis of senile plaques in Alzheimer`s disease. A preliminary study

Abstract

Results of micro-PIXE analysis of senile plaques (SP) in Alzheimer`s disease (AD) brain have been utilized to independently confirm levels of iron (Fe) as measured by LMMS in adjacent brain sections. LMMS concentrations were calculated based on the preparation and analysis of an iron calibration curve prepared in our laboratory. The LMMS standards consist of iron cis-dicylclohexano-18-crown-6 ether coordination complexes dissolved in Spurr`s low viscosity embedding medium. To our knowledge, this is the first report of the use of micro-PIXE, with its spatial resolution and detection limits comparable to that of LMMS, in the validation of LMMS results. The agreement observed between results obtained for Fe by micro-PIXE and LMMS indicates that the use of our LMMS standards, at least in the case of Fe, yields accurate results. (author). 6 refs., 1 fig., 1 tab.
Authors:
Lovell, M A; Robertson, J D; Ehmann, W D; [1]  Markesbery, W R; [2]  Teesdale, W J; Campbell, J L [3] 
  1. Kentucky Univ., Lexington, KY (United States). Dept. of Chemistry
  2. Kentucky Univ., Lexington, KY (United States)
  3. Guelph Univ., ON (Canada). Dept. of Physics
Publication Date:
Aug 01, 1995
Product Type:
Journal Article
Report Number:
CONF-9404288-
Reference Number:
SCA: 400101; 553006; PA: AIX-27:009948; EDB-96:037967; SN: 96001538391
Resource Relation:
Journal Name: Journal of Radioanalytical and Nuclear Chemistry; Journal Volume: 195; Journal Issue: 1; Conference: MARC-III: 3. International conference on methods and applicatinos of radioanalytical chemistry, Kailua-Kona, HI (United States), 10-16 Apr 1994; Other Information: PBD: Aug 1995
Subject:
40 CHEMISTRY; 55 BIOLOGY AND MEDICINE, BASIC STUDIES; IRON; MASS SPECTROSCOPY; PIXE ANALYSIS; BRAIN; CALIBRATION; COMPARATIVE EVALUATIONS; LASER SPECTROSCOPY; MICROANALYSIS; SPATIAL RESOLUTION
OSTI ID:
183967
Country of Origin:
Hungary
Language:
English
Other Identifying Numbers:
Journal ID: JRNCDM; ISSN 0236-5731; TRN: HU9617920009948
Submitting Site:
INIS
Size:
pp. 7-12
Announcement Date:
Feb 26, 1996

Citation Formats

Lovell, M A, Robertson, J D, Ehmann, W D, Markesbery, W R, Teesdale, W J, and Campbell, J L. Comparison of laser microprobe mass spectrometry (LMMS) and micro particle induced x-ray emission (micro-PIXE) for the analysis of senile plaques in Alzheimer`s disease. A preliminary study. Hungary: N. p., 1995. Web. doi:10.1007/BF02036467.
Lovell, M A, Robertson, J D, Ehmann, W D, Markesbery, W R, Teesdale, W J, & Campbell, J L. Comparison of laser microprobe mass spectrometry (LMMS) and micro particle induced x-ray emission (micro-PIXE) for the analysis of senile plaques in Alzheimer`s disease. A preliminary study. Hungary. https://doi.org/10.1007/BF02036467
Lovell, M A, Robertson, J D, Ehmann, W D, Markesbery, W R, Teesdale, W J, and Campbell, J L. 1995. "Comparison of laser microprobe mass spectrometry (LMMS) and micro particle induced x-ray emission (micro-PIXE) for the analysis of senile plaques in Alzheimer`s disease. A preliminary study." Hungary. https://doi.org/10.1007/BF02036467.
@misc{etde_183967,
title = {Comparison of laser microprobe mass spectrometry (LMMS) and micro particle induced x-ray emission (micro-PIXE) for the analysis of senile plaques in Alzheimer`s disease. A preliminary study}
author = {Lovell, M A, Robertson, J D, Ehmann, W D, Markesbery, W R, Teesdale, W J, and Campbell, J L}
abstractNote = {Results of micro-PIXE analysis of senile plaques (SP) in Alzheimer`s disease (AD) brain have been utilized to independently confirm levels of iron (Fe) as measured by LMMS in adjacent brain sections. LMMS concentrations were calculated based on the preparation and analysis of an iron calibration curve prepared in our laboratory. The LMMS standards consist of iron cis-dicylclohexano-18-crown-6 ether coordination complexes dissolved in Spurr`s low viscosity embedding medium. To our knowledge, this is the first report of the use of micro-PIXE, with its spatial resolution and detection limits comparable to that of LMMS, in the validation of LMMS results. The agreement observed between results obtained for Fe by micro-PIXE and LMMS indicates that the use of our LMMS standards, at least in the case of Fe, yields accurate results. (author). 6 refs., 1 fig., 1 tab.}
doi = {10.1007/BF02036467}
journal = []
issue = {1}
volume = {195}
journal type = {AC}
place = {Hungary}
year = {1995}
month = {Aug}
}