scholarly journals Enhanced precision, accuracy, efficiency, and spatial resolution of U-Pb ages by laser ablation-multicollector-inductively coupled plasma-mass spectrometry

2008 ◽  
Vol 9 (3) ◽  
pp. n/a-n/a ◽  
Author(s):  
George E. Gehrels ◽  
Victor A. Valencia ◽  
Joaquin Ruiz
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Spatial Resolution ◽  
Inductively Coupled Plasma ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

High spatial resolution quantitative elemental imaging of foraminifer by laser ablation-inductively coupled plasma-mass spectrometry

2019 ◽  
Vol 11 (16) ◽  
pp. 2129-2137 ◽  
Author(s):  
Yuqiu Ke ◽  
Jianzong Zhou ◽  
Lei Qiao ◽  
Muhui Zhang ◽  
Wei Guo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Spatial Resolution ◽  
Inductively Coupled Plasma ◽  
High Spatial Resolution ◽  
Elemental Imaging ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

A methodology for high spatial resolution quantitative elemental imaging of foraminifer by LA-ICP-MS was developed.

scholarly journals High spatial resolution analysis of Pb and U isotopes for geochronology by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS)

2009 ◽  
Vol 81 (1) ◽  
pp. 99-114 ◽  
Author(s):  
Bernhard Bühn ◽  
Márcio M. Pimentel ◽  
Massimo Matteini ◽  
Elton L. Dantas
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Spatial Resolution ◽  
Inductively Coupled Plasma ◽  
High Spatial Resolution ◽  
Isotopic Ratios ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Isotopic Analyses ◽  
Plasma Mass Spectrometry

Age determinations using the 235U and 238U radioactive decay series to the daughter isotopes 207Pb and 206Pb, respectively, using the mineral zircon (ZrSiO4), are widely used to decipher geological processes. A new method developed in the last couple of years, the laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS), overcomes previous laborious sample preparation, and yields isotopic ratios and age data with a high spatial resolution of ten of microns. The present study describes the analytical set-up and data reduction process as presently applied at the Laboratory for Geochronology of the University of Brasília. It explores the precision and accuracy of the method by cross-analysing three international zircon standards. We arrive at a precision of 1.9 to 3.7% (2σ SD) and an accuracy of 0.6 to 3.8% (2σ SD) for and U isotopic ratios of the standards. We also apply the method to two natural zircon samples, which have previously been dated by other analytical methods. A comparison of the results show a good conformity of the age data,being whitin the error limits. The data demonstrate the great analytical potential of the method for rapid, precise and accurate U-Pb isotopic analyses on the micron scale.

Validation of Sr isotopes in otoliths by laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICPMS): opening avenues in fisheries science applications

2005 ◽  
Vol 62 (11) ◽  
pp. 2425-2430 ◽  
Author(s):  
Rachel Barnett-Johnson ◽  
Frank C Ramos ◽  
Churchill B Grimes ◽  
R Bruce MacFarlane
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Spatial Resolution ◽  
Inductively Coupled Plasma ◽  
High Spatial Resolution ◽  
Fish Growth ◽  
Ionization Mass ◽  
Sr Isotopes ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry

Advances in probe-based mass spectrometry allow for high spatial resolution of elemental and isotopic signatures in fish otoliths that can be used to address fundamental questions in fisheries ecology. Analyses of Chinook salmon (Oncorhynchus tshawytscha) otoliths from two river populations yield identical 87Sr/86Sr ratios using laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICPMS) and thermal ionization mass spectrometry (TIMS). Results were obtained from freshwater otoliths with low Sr concentrations (300–800 ppm) using high spatial resolution (50 µm) corresponding to temporal histories of ~12 days fish growth. Low natural variation in 87Sr/86Sr among otoliths from the same rivers allows for conservative estimates of external precision of techniques. Thus, we demonstrate that Sr isotope ratios obtained by LA-MC-ICPMS can be accurate and precise, bypassing the time-intensive sample preparation required by microdrilling and TIMS. This technique opens the use of Sr isotopes for broader ecological questions requiring large sample sizes to characterize nursery habitats, metapopulation dynamics, and stock discrimination similar to studies that focus on elemental concentrations, thereby providing a more robust tool for some freshwater and diadromous fishes.

Fast Chemical Imaging at High Spatial Resolution by Laser Ablation Inductively Coupled Plasma Mass Spectrometry

2013 ◽  
Vol 85 (21) ◽  
pp. 10107-10116 ◽  
Author(s):  
Hao A. O. Wang ◽  
Daniel Grolimund ◽  
Charlotte Giesen ◽  
Camelia N. Borca ◽  
James R. H. Shaw-Stewart ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Spatial Resolution ◽  
Inductively Coupled Plasma ◽  
High Spatial Resolution ◽  
Chemical Imaging ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Fast Chemical
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