scholarly journals Matrix effects during laser ablation MC ICP-MS analysis of boron isotopes in tourmaline

2014 ◽  
Vol 29 (5) ◽  
pp. 903 ◽  
Author(s):  
Jitka Míková ◽  
Jan Košler ◽  
Michael Wiedenbeck
Keyword(s):  
Laser Ablation ◽  
Matrix Effects ◽  
Boron Isotopes ◽  
Ms Analysis ◽  
Icp Ms

scholarly journals Quantitative Determination of the Surface Distribution of Supported Metal Nanoparticles: A Laser Ablation–ICP–MS Based Approach

Chemosensors ◽  
2021 ◽  
Vol 9 (4) ◽  
pp. 77
Author(s):  
Davide Spanu ◽  
Gilberto Binda ◽  
Marcello Marelli ◽  
Laura Rampazzi ◽  
Sandro Recchia ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Laser Ablation ◽  
Quantitative Determination ◽  
Metal Nanoparticles ◽  
Total Mass ◽  
Functional Materials ◽  
Metal Extraction ◽  
Ms Analysis ◽  
Icp Ms

A laser ablation–inductively coupled plasma–mass spectrometry (LA–ICP–MS) based method is proposed for the quantitative determination of the spatial distribution of metal nanoparticles (NPs) supported on planar substrates. The surface is sampled using tailored ablation patterns and the data are used to define three-dimensional functions describing the spatial distribution of NPs. The volume integrals of such interpolated surfaces are calibrated to obtain the mass distribution of Ag NPs by correlation with the total mass of metal as determined by metal extraction and ICP–MS analysis. Once this mass calibration is carried out on a sacrificial sample, quantifications can be performed over multiple samples by a simple micro-destructive LA–ICP–MS analysis without requiring the extraction/dissolution of metal NPs. The proposed approach is here tested using a model sample consisting of a low-density polyethylene (LDPE) disk decorated with silver NPs, achieving high spatial resolution over cm2-sized samples and very high sensitivity. The developed method is accordingly a useful analytical tool for applications requiring both the total mass and the spatial distribution of metal NPs to be determined without damaging the sample surface (e.g., composite functional materials and NPs, decorated catalysts or electrodic materials).

Two age populations of zircons from the Timber Creek kimberlites, Northern Territory, as determined by laser-ablation ICP-MS analysis

2001 ◽  
Vol 48 (5) ◽  
pp. 757 ◽  
Author(s):  
E. A. Belousova ◽  
W. L. Griffin ◽  
S. R. Shee ◽  
S. E. Jackson ◽  
S. Y. O'Reilly
Keyword(s):  
Laser Ablation ◽  
Northern Territory ◽  
Ms Analysis ◽  
Icp Ms

Aerosol extraction and direct laser ablation ICP-MS analysis of the fine and ultrafine fractions of regolith

2019 ◽  
Vol 20 (3) ◽  
pp. 280-298
Author(s):  
Paul A. Morris ◽  
Alex Christ ◽  
Edward J. Mikucki
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Content Type ◽  
Inductively Coupled ◽  
Ms Analysis ◽  
Icp Ms ◽  
Direct Laser ◽  
Plasma Mass Spectrometry ◽  
Supplementary Material

The <10, <4, <2.5 and <1 µm fractions of eight regolith samples have been extracted as aerosols, then analysed for more than 60 elements by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Precision and accuracy rivals that of conventional digestion and ICP-MS analysis for most elements, but the aerosol extraction and ablation approach can be completed within 30 min, avoids compromising the sample by screening, column settling, fusion and/or digestion, and includes data for elements such as Br, Cl, I and Se that are conventionally analysed by individual procedures. Major element chemistry and scanning electron microscope (SEM) imagery show that the aerosol fractions of regolith are dominated by kaolinite, with quartz in aeolian regolith. The aerosol fractions of Si- and Ca-rich regolith have higher trace element concentrations than the coarser fraction (0.45–2 mm), but chalcophile elements are depleted in the aerosols of Fe-rich regolith relative to the coarser fraction. Improvements in in-field analytical technology coupled with aerosol extraction mean that fine and ultrafine fraction chemistry can be used to guide mineral exploration programmes in close to real time.Supplementary material: The results of the laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) analysis of filter papers are available at https://doi.org/10.6084/m9.figshare.c.4562807

Matrix effects in Pb/U measurements during LA-ICP-MS analysis of the mineral apatite

2016 ◽  
Vol 31 (6) ◽  
pp. 1206-1215 ◽  
Author(s):  
Jay Thompson ◽  
Sebastien Meffre ◽  
Roland Maas ◽  
Vadim Kamenetsky ◽  
Maya Kamenetsky ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Reference Materials ◽  
Isotope Dilution ◽  
Matrix Effects ◽  
Primary Standard ◽  
Isotope Dilution Mass Spectrometry ◽  
Ms Analysis ◽  
Icp Ms

U–Pb ages of several apatite reference materials, acquired by LA-ICP-MS over a 3.5 year period using the Otter Lake apatite as a primary standard, show systematic offsets (up to 3%) from reference ages obtained by isotope dilution mass spectrometry.

Determination of major and trace elements in geological samples by laser ablation solution sampling-inductively coupled plasma mass spectrometry

2019 ◽  
Vol 34 (6) ◽  
pp. 1126-1134 ◽  
Author(s):  
Xiuhong Liao ◽  
Zhaochu Hu ◽  
Tao Luo ◽  
Wen Zhang ◽  
Yongsheng Liu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Major And Trace Elements ◽  
Geological Samples ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Water-related interferences and matrix effects in ICP-MS are dramatically reduced by using laser ablation solution sampling.

scholarly journals Effect of oxygen in sample carrier gas on laser-induced elemental fractionation in U–Th–Pb zircon dating by laser ablation ICP-MS

2014 ◽  
Vol 29 (5) ◽  
pp. 832-840 ◽  
Author(s):  
Jan Košler ◽  
Simon E. Jackson ◽  
Zhaoping Yang ◽  
Richard Wirth
Keyword(s):  
Laser Ablation ◽  
Elemental Fractionation ◽  
Zircon Dating ◽  
Carrier Gas ◽  
Ms Analysis ◽  
Icp Ms ◽  
Effect Of Oxygen ◽  
Sample Carrier

The presence of oxygen during U–Th–Pb LA ICP-MS analysis of zircon controls the laser-induced elemental fractionation and ICP-MS sensitivity.

scholarly journals Evaluating the reliability of U–Pb laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) carbonate geochronology: matrix issues and a potential calcite validation reference material

Geochronology ◽  
2020 ◽  
Vol 2 (1) ◽  
pp. 155-167
Author(s):  
Marcel Guillong ◽  
Jörn-Frederik Wotzlaw ◽  
Nathan Looser ◽  
Oscar Laurent
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Aspect Ratio ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Ablation Crater ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Abstract. We document that the reliability of carbonate U–Pb dating by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) is improved by matching the aspect ratio of the LA single-hole drilling craters and propagating long-term excess variance and systematic uncertainties. We investigated the impact of different matrices and ablation crater geometries using U–Pb isotope analyses of one primary (WC-1) and two secondary reference materials (RMs). Validation RMs (VRMs) include a previously characterised one (ASH-15D) and a new candidate (JT), characterised by ID-TIMS (intercept age: 13.797±0.031 Ma) with excellent agreement to pooled LA-ICP-MS measurements (13.75±0.11 | 0.36 Ma), a U concentration of approx. 1 µg g−1 and 238U∕206Pb ratios from 5 to 460, defining the isochron well. Differences in ablation crater depth to diameter ratios (aspect ratio) introduce an offset due to downhole fractionation and/or matrix effects. This effect can be observed either when the crater size between U–Pb RM and the sample changes or when the ablation rate for the sample is different than for the RM. Observed deviations are up to 20 % of the final intercept age depending on the degree of crater geometry mismatch. The long-term excess uncertainty was calculated to be in the range of 2 % (ASH-15D) to 2.5 % (JT), and we recommend propagating this uncertainty into the uncertainty of the final results. Additionally, a systematic offset to the ID-TIMS age of 2 %–3 % was observed for ASH-15D but not for JT. This offset might be due to different ablation rates of ASH-15D compared to the primary RM or remaining matrix effects, even when the aspect ratios chosen are similar.

scholarly journals Matrix-matched calibration in LA-ICP-MS of silicate, phosphate and carbonate minerals: application of G-Probe samples

2020 ◽  
Vol 7 (1) ◽  
pp. 4-12
Author(s):  
D. V. Kiseleva
Keyword(s):  
Laser Ablation ◽  
International Association ◽  
Solid Samples ◽  
Calcium Carbonates ◽  
Ms Analysis ◽  
Icp Ms ◽  
Wide Range ◽  
Z Scores ◽  
Rock Analysis ◽  
Analysis Quality

Laser ablation (LA) sampling provides fast microelement ICP-MS analysis of a wide range of solid materials without their dissolution, thus decreasing contamination from water and reagents as well as reducing polyatomic isobaric interferences from acid solutions. However, the issue of matrix-matched calibration becomes crucial for LA-ICP-MS due to differences in behaviour during laser interaction and evaporation of solid samples. There are several approaches to LA calibration: simultaneous supply of standard solutions into a spray chamber; calibration using a set of NIST 61х synthetic glasses and glasses prepared from natural rocks and minerals (basalt, nephelinite, etc.) or pressed synthetic samples (calcium carbonates, phosphates and sulphides produced by USGS). A set of natural glasses for microanalysis is available from the International Association of Geoanalysts (IAG) in co-operation with the USGS. The G-Probe proficiency testing programme has been operating since 2008 and deals with solid samples for microanalysis (LA-ICP-MS, EPMA, EDS-SEM). A number of samples of different compositions were distributed: BBM-1G and BSWIR-1G natural basaltic glasses, GSM-1 gabbro; NIST SRM-based basaltic and diabase glasses; GP-MACS synthetic pressed calcium carbonate, GP-MAPS phosphate and some others. The aim of the present work was to estimate the LA-ICP-MS analysis quality using matrix-matched calibration with G-probe samples of various composition. All G-Probe samples were analysed using an ELAN 9000 Q-ICP-MS combined with a LSX-500 (Nd:YAG, 266 nm) laser ablation system. For silicate rocks, TB-1 basaltic glass was used for calibration; the remaining samples were analysed as unknowns. MAPS-4 calibration material were used for phosphate rock analysis. A combination of external matrix-matched calibration and internal normalisation was used for calculating element concentrations. LA-ICP-MS analysis quality was estimated using z-scores. Most of the results obtained were in a good agreement with assigned values.

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