scholarly journals A comparison of annual layer thickness model estimates with observational measurements using the Berkner Island ice core, Antarctica

2017 ◽  
Vol 29 (4) ◽  
pp. 382-393
Author(s):  
A. Massam ◽  
S.B. Sneed ◽  
G.P. Lee ◽  
R.R. Tuckwell ◽  
R. Mulvaney ◽  
...  
Keyword(s):  
High Resolution ◽  
Layer Thickness ◽  
Inductively Coupled Plasma ◽  
Ice Core ◽  
Ultra Violet ◽  
Analytical Techniques ◽  
Inductively Coupled ◽  
Annual Layer ◽  
Icp Ms ◽  
Chemical Profiles

AbstractA model to estimate the annual layer thickness of deposited snowfall at a deep ice core site, compacted by vertical strain with respect to depth, is assessed using ultra-high-resolution laboratory analytical techniques. A recently established technique of high-resolution direct chemical analysis of ice using ultra-violet laser ablation inductively-coupled plasma mass spectrometry (LA ICP-MS) has been applied to ice from the Berkner Island ice core, and compared with results from lower resolution techniques conducted on parallel sections of ice. The results from both techniques have been analysed in order to assess the capability of each technique to recover seasonal cycles from deep Antarctic ice. Results do not agree with the annual layer thickness estimates from the age–depth model for individual samples <1 m long as the model cannot reconstruct the natural variability present in annual accumulation. However, when compared with sections >4 m long, the deviation between the modelled and observational layer thicknesses is minimized to within two standard deviations. This confirms that the model is capable of successfully estimating mean annual layer thicknesses around analysed sections. Furthermore, our results confirm that the LA ICP-MS technique can reliably recover seasonal chemical profiles beyond standard analytical resolution.

Towards an improved understanding of high-resolution impurity signals in deep Antarctic ice cores

2020 ◽  
Author(s):  
Pascal Bohleber ◽  
Marco Roman ◽  
Carlo Barbante ◽  
Barbara Stenni ◽  
Barbara Delmonte
Keyword(s):  
Laser Ablation ◽  
High Resolution ◽  
Inductively Coupled Plasma ◽  
Ice Core ◽  
Ice Cores ◽  
Inductively Coupled ◽  
Icp Ms ◽  
First Results ◽  
Plasma Mass Spectrometry ◽  
Fine Resolution

&lt;p&gt;Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) offers minimally destructive ice core impurity analysis at micron-scale resolution. This technique is especially suited for exploring closely spaced layers of ice within samples collected at low accumulation sites or in regions of highly compressed and thinned ice. Accordingly, LA-ICP-MS promises invaluable insights in the analysis of a future &amp;#8220;Oldest ice core&amp;#8221; from Antarctica. However, in contrast to ice core melting techniques, taking into account the location of impurities is crucial to avoid misinterpretation of ultra-fine resolution signals obtained from newly emerging laser ablation technologies. Here we present first results from a new LA-ICP-MS setup developed at the University of Venice, based on a customized two-volume cryogenic ablation chamber optimized for fast wash-out times. We apply our method for high-resolution chemical imagining analysis of impurities in samples from intermediate and deep sections of the Talos Dome and EPICA Dome C ice cores. We discuss the localization of both soluble and insoluble impurities within the ice matrix and evaluate the spatial significance of a single profile along the main core axis. With this, we aim at establishing a firm basis for a future deployment of the LA-ICP-MS in an &amp;#8220;Oldest Ice Core&amp;#8221;. Moreover, our work illustrates how LA-ICP-MS may offer new means to study the impurity-microstructure interplay in deep polar ice, thereby promising to advance our understanding of these fundamental processes.&lt;/p&gt;

scholarly journals New LA-ICP-MS cryocell and calibration technique for sub-millimeter analysis of ice cores

2015 ◽  
Vol 61 (226) ◽  
pp. 233-242 ◽  
Author(s):  
Sharon B. Sneed ◽  
Paul A. Mayewski ◽  
W.G. Sayre ◽  
Michael J. Handley ◽  
Andrei V. Kurbatov ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Chemical Constituents ◽  
Ice Core ◽  
Flow Analysis ◽  
Ice Cores ◽  
Calibration Technique ◽  
Inductively Coupled ◽  
Annual Layer ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

AbstractIce cores provide a robust reconstruction of past climate. However, development of timescales by annual-layer counting, essential to detailed climate reconstruction and interpretation, on ice cores collected at low-accumulation sites or in regions of compressed ice, is problematic due to closely spaced layers. Ice-core analysis by laser ablation–inductively coupled plasma–mass spectrometry (LA-ICP-MS) provides sub-millimeter-scale sampling resolution (on the order of 100 μm in this study) and the low detection limits (ng L−1) necessary to measure the chemical constituents preserved in ice cores. We present a newly developed cryocell that can hold a 1 m long section of ice core, and an alternative strategy for calibration. Using ice-core samples from central Greenland, we demonstrate the repeatability of multiple ablation passes, highlight the improved sampling resolution, verify the calibration technique and identify annual layers in the chemical profile in a deep section of an ice core where annual layers have not previously been identified using chemistry. In addition, using sections of cores from the Swiss/Italian Alps we illustrate the relationship between Ca, Na and Fe and particle concentration and conductivity, and validate the LA-ICP-MS Ca profile through a direct comparison with continuous flow analysis results.

Multielemental Analysis of Purpleback Flying Squid Using High Resolution Inductively Coupled Plasma-Mass Spectrometry (HR ICP-MS)

2001 ◽  
Vol 35 (15) ◽  
pp. 3103-3108 ◽  
Author(s):  
Hideki Ichihashi ◽  
Hiroyoshi Kohno ◽  
Kurunthachalam Kannan ◽  
Akito Tsumura ◽  
Shin-ichi Yamasaki
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Inductively Coupled Plasma ◽  
Multielemental Analysis ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

scholarly journals Nanoplastic Labelling with Metal Probes: Analytical Strategies for Their Sensitive Detection and Quantification by ICP Mass Spectrometry

Molecules ◽  
2021 ◽  
Vol 26 (23) ◽  
pp. 7093
Author(s):  
Lucile Marigliano ◽  
Bruno Grassl ◽  
Joanna Szpunar ◽  
Stéphanie Reynaud ◽  
Javier Jiménez-Lamana
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Analytical Techniques ◽  
Inductively Coupled ◽  
Advantages And Disadvantages ◽  
Promising Tool ◽  
Icp Ms ◽  
Analytical Strategies ◽  
Icp Mass Spectrometry ◽  
Detection And Quantification

The detection and quantification of nanoplastics in aquatic environments is one of the major challenges in environmental and analytical research nowadays. The use of common analytical techniques for this purpose is not only hampered by the size of nanoplastics, but also because they are mainly made of carbon. In addition, the expected concentrations in environmental samples are below the detection limit of the majority of analytical techniques. In this context, the great detection capabilities of Inductively Coupled Plasma Mass Spectrometry (ICP-MS) in its Single Particle mode (SP-ICP-MS) have made of this technique a good candidate for the analysis of nanoplastics. Since the monitoring of carbon by ICP-MS faces several difficulties, the use of metal tags, taking advantage of the great potential of nanoplastics to adsorb chemical compounds, has been proposed as an alternative. In this perspectives paper, three different strategies for the analysis of polystyrene (PS) nanoplastics by SP-ICP-MS based on the use of metals species (ions, hydrophobic organometallic compound, and nanoparticles) as tags are presented and discussed. Advantages and disadvantages of each strategy, which rely on the labelling process, are highlighted. The metal nanoparticles labelling strategy is shown as a promising tool for the detection and quantification of nanoplastics in aqueous matrices by SP-ICP-MS.

A More Accurate Molar Mass of Silicon via High Resolution MC-ICP-Mass Spectrometry

2014 ◽  
Vol 228 (4-5) ◽  
Author(s):  
Axel Pramann ◽  
Olaf Rienitz ◽  
Janine Noordmann ◽  
Bernd Güttler ◽  
Detlef Schiel
Keyword(s):  
Mass Spectrometry ◽  
High Resolution ◽  
Inductively Coupled Plasma ◽  
Molar Mass ◽  
Silicon Crystal ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Icp Mass Spectrometry

AbstractHigh resolution multicollector inductively coupled plasma mass spectrometry (HR-MC-ICP-MS) was applied for the determination of the isotopic composition and molar mass of a silicon crystal material (“Si28”) highly enriched in the

scholarly journals Heavy metal incorporation in foraminiferal calcite: results from multi-element enrichment culture experiments with <i>Ammonia tepida</i>

2010 ◽  
Vol 7 (8) ◽  
pp. 2339-2350 ◽  
Author(s):  
D. Munsel ◽  
U. Kramar ◽  
D. Dissard ◽  
G. Nehrke ◽  
Z. Berner ◽  
...  
Keyword(s):  
North Sea ◽  
Inductively Coupled Plasma ◽  
Partition Coefficients ◽  
Sea Water ◽  
Enrichment Culture ◽  
Analytical Techniques ◽  
Large Variability ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Element Enrichment

Abstract. The incorporation of heavy metals into carbonate tests of the shallow water benthic foraminifer Ammonia tepida was investigated under controlled laboratory conditions. Temperature, salinity, and pH of the culture solutions were kept constant throughout the duration of this experiment, while trace metal concentrations were varied. Concentrations of Ni, Cu, and Mn were set 5-, 10-, and 20 times higher than levels found in natural North Sea water; for reference, a control experiment with pure filtered natural North Sea water was also analysed. The concentrations of Cu and Ni from newly grown chambers were determined by means of both μ-synchrotron XRF and Laser Ablation Inductively Coupled Plasma Mass Spectroscopy (LA-ICP-MS). The results of both independent analytical techniques agreed within the analytical uncertainty. In general, the concentration of the analysed elements in the tests increased in line with their concentration in the culture solutions. Potential toxic and/or chemical competition effects might have resulted in the decreased incorporation of Ni and Cu into the calcite of the specimens exposed to the highest elemental concentrations. Mn incorporation exhibited large variability in the experiment with the 20-fold increased element concentrations, potentially due to antagonistic effects with Cu. The partition coefficients of Cu and Ni were calculated to be 0.14 ± 0.02 and 1.0 ± 0.5, respectively, whereas the partition coefficient of Mn was estimated to be least 2.4. These partition coefficients now open the way for reconstructing past concentrations for these elements in sea water.

scholarly journals Development and Application of Nanoparticle-Nanopolymer Composite Spheres for the Study of Environmental Processes

2021 ◽  
Vol 3 ◽  
Author(s):  
Robert J. Rauschendorfer ◽  
Kyle M. Whitham ◽  
Star Summer ◽  
Samantha A. Patrick ◽  
Aliandra E. Pierce ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Large Scale ◽  
Analytical Techniques ◽  
Inductively Coupled ◽  
The Past ◽  
Icp Ms ◽  
Sensitivity And Selectivity ◽  
Plasma Mass Spectrometry ◽  
Wide Scale ◽  
Synthetic Copolymer

Plastics have long been an environmental contaminant of concern as both large-scale plastic debris and as micro- and nano-plastics with demonstrated wide-scale ubiquity. Research in the past decade has focused on the potential toxicological risks posed by microplastics, as well as their unique fate and transport brought on by their colloidal nature. These efforts have been slowed by the lack of analytical techniques with sufficient sensitivity and selectivity to adequately detect and characterize these contaminants in environmental and biological matrices. To improve analytical analyses, microplastic tracers are developed with recognizable isotopic, metallic, or fluorescent signatures capable of being identified amidst a complex background. Here we describe the synthesis, characterization, and application of a novel synthetic copolymer nanoplastic based on polystyrene (PS) and poly(2-vinylpyridine) (P2VP) intercalated with gold, platinum or palladium nanoparticles that can be capped with different polymeric shells meant to mimic the intended microplastic. In this work, particles with PS and polymethylmethacrylate (PMMA) shells are used to examine the behavior of microplastic particles in estuarine sediment and coastal waters. The micro- and nanoplastic tracers, with sizes between 300 and 500 nm in diameter, were characterized using multiple physical, chemical, and colloidal analysis techniques. The metallic signatures of the tracers allow for quantification by both bulk and single-particle inductively-coupled plasma mass spectrometry (ICP-MS and spICP-MS, respectively). As a demonstration of environmental applicability, the tracers were equilibrated with sediment collected from Bellingham Bay, WA, United States to determine the degree to which microplastics bind and sink in an estuary based of grain size and organic carbon parameters. In these experiments, between 80 and 95% of particles were found to associate with the sediment, demonstrative of estuaries being a major anticipated sink for these contaminants. These materials show considerable promise in their versatility, potential for multiplexing, and utility in studying micro- and nano-plastic transport in real-world environments.

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