Impact of matrix effects on the accurate measurement of Li isotope ratios by inductively coupled plasma mass spectrometry (MC-ICP-MS) under “cold” plasma conditions

2003 ◽  
Vol 18 (7) ◽  
pp. 734-737 ◽  
Author(s):  
Colleen J. Bryant ◽  
Malcolm T. McCulloch ◽  
Vickie C. Bennett
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Cold Plasma ◽  
Matrix Effects ◽  
Isotope Ratios ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Li Isotope

scholarly journals Accurate measurement of uranium isotope ratios in solid samples by laser ablation multi-collector inductively coupled plasma mass spectrometry

2018 ◽  
Vol 33 (6) ◽  
pp. 1076-1080 ◽  
Author(s):  
Z. Varga ◽  
M. Krachler ◽  
A. Nicholl ◽  
M. Ernstberger ◽  
T. Wiss ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Certified Reference Materials ◽  
Isotope Ratios ◽  
Uranium Isotope ◽  
Solid Samples ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

A multi-collector inductively coupled plasma mass spectrometer (MC-ICP-MS) coupled to a 213 nm ns-laser was used to measure uranium isotope ratios (234U/238U, 235U/238U, and 236U/238U) in six solid nuclear certified reference materials (CRMs).

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 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 Minimizing interferences in the quantitative multielement analysis of trace elements in biological fluids by inductively coupled plasma mass spectrometry

1997 ◽  
Vol 43 (12) ◽  
pp. 2303-2311 ◽  
Author(s):  
Chiung-Sheng Hsiung ◽  
Joseph D Andrade ◽  
Robert Costa ◽  
K Owen Ash
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Biological Fluids ◽  
External Calibration ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Target Values ◽  
Plasma Mass Spectrometry ◽  
Urine And Serum

Abstract The determination of trace and ultratrace elements in biological fluids, including urine and serum, by inductively coupled plasma mass spectrometry (ICP-MS) is discussed. Nonspectral interferences and their corrections by external calibration and calibrator addition are discussed in detail. External calibration with internal calibration and dilution is mostly sufficient to correct for encountered biological matrix effects. For some elements, such as Cs and Zn, the use of calibrator addition provides more accurate results. The importance of spectral interferences and their elimination by isotope selection was also studied. Two examples, Cu and Zn, demonstrate the prime importance of selecting an isotope with minimal polyatomic interferences for analysis. By using 65Cu and 68Zn, accurate results for urine and serum can be obtained without excessive pretreatment of samples. Two reference materials, Bio-Rad Lyphochek urine and Kaulson Contox sera, were analyzed. Accuracy was evaluated by comparison with target values, and precision was estimated by the CV within 95% confidence.

Uranium isotope analysis by MC-ICP-MS in sub-ng sized samples

2016 ◽  
Vol 31 (11) ◽  
pp. 2272-2284 ◽  
Author(s):  
Sergei F. Boulyga ◽  
Andreas Koepf ◽  
Stefanie Konegger-Kappel ◽  
Zsuzsanna Macsik ◽  
Guillaume Stadelmann
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Isotope Analysis ◽  
Isotope Ratios ◽  
Uranium Isotope ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

This study describes the multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS) method for the determination of n(233U)/n(238U), n(234U)/n(238U), n(235U)/n(238U), and n(236U)/n(238U) isotope ratios in purified uranium solutions.

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