Matrix effects on the multi-collector inductively coupled plasma mass spectrometric analysis of high-precision cadmium and zinc isotope ratios

Shiel, Alyssa E.; Barling, Jane; Orians, Kristin J.; Weis, Dominique

doi:10.1016/j.aca.2008.11.026

Cited by 74 publications

(67 citation statements)

References 38 publications

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“…In addition, sample matrix effects are not expected given the consistent offset in both natural samples and pure Mo standards towards erroneously light isotopic compositions. Therefore, we conclude that this is a result of a nonspectral column matrix effect as has been reported elsewhere [38,41], which SSB and external normalization procedures fail to correct. This effect highlights a limitation of SSB and external normalization which is overcome by the adoption of a double-spike.…”

Section: Evaluation Of Column Isotope Effectsmentioning

confidence: 73%

“…Molybdenum recoveries for two separate replicates of the USGS reference material BCR-2 using this protocol yielded 94 % as measured using ICP-MS (Agilent 7700x, Agilent Technologies, Santa Clara, CA, USA). In addition, this procedure provides quantitative separations of Zn and Cd in a single pass through the column [38,39], allowing for rapid throughput of multiple isotope systems (Mo, Zn, Cd). Elution curves and further details regarding the anion exchange chemistry protocol are available in Fig.…”

Section: Double-spike and Standard Calibration Verificationmentioning

confidence: 99%

“…In this study, ion exchange chromatography was completed using a modified version of the chemistries used by Shiel et al [38] and Pearce et al [34]. Doublespiked samples were loaded in 7 N HCl onto 2 mL of BioRad AG® MP-1M resin (100-200 mesh).…”

Section: Double-spike and Standard Calibration Verificationmentioning

confidence: 99%

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A practical guide for the design and implementation of the double-spike technique for precise determination of molybdenum isotope compositions of environmental samples

2015

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The isotopic double-spike method allows for the determination of stable isotope ratios by multi-collector inductively coupled plasma-mass spectrometry (MC-ICP-MS) with accuracy and precision in the range of ∼0.02 ‰ amu(-1), but its adoption has been hindered by the perceived difficulties in double-spike calibration and implementation. To facilitate the implementation of the double-spike approach, an explanation of the calibration and validation of a (97)Mo-(100)Mo double-spike protocol is given in more detail than has been presented elsewhere. The long-term external standard reproducibility is 0.05 ‰ on δ(98/95)Mo measurements of standards. δ(98/95)Mo values for seawater and U.S. Geological Survey (USGS) reference materials SDO-1 and BCR-2 measured in this study are 2.13 ± 0.04 ‰ (2 SD, n = 3), 0.79 ± 0.05 ‰ (2 SD, n = 11), and -0.04 ± 0.10 ‰ (2 SD, n = 3) relative to the NIST-SRM-3134. The double-spike method corrects for laboratory and instrumental fractionation which are not accounted for using other mass bias correction methods. Spike/sample molar ratios between 0.4 and 0.8 provide accurate isotope measurements; outside of this range, isotope measurements are inaccurate but corrections are possible when standards and samples are spiked at a similar ratio.

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Section: Evaluation Of Column Isotope Effectsmentioning

confidence: 73%

Section: Double-spike and Standard Calibration Verificationmentioning

confidence: 99%

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A practical guide for the design and implementation of the double-spike technique for precise determination of molybdenum isotope compositions of environmental samples

2015

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“…Previously, ID was used in conjunction with thermal ionization. Later on, it was also implemented with ICP-MS. ID provides advantages over traditional calibration because the calculated isotope ratios, and hence the analytical results, obtained by means of ID-ICP-MS do not depend on instrumental instabilities and possible matrix effects [31][32][33]. Thus, highly accurate measurements can be performed, and the ID-MS technique may be regarded as one of definitive analytical methods.…”

Section: Isotope Dilutionmentioning

confidence: 99%

Quantitative aspects of inductively coupled plasma mass spectrometry

Bulska¹,

Wagner²

2016

Phil. Trans. R. Soc. A.

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Accurate determination of elements in various kinds of samples is essential for many areas, including environmental science, medicine, as well as industry. Inductively coupled plasma mass spectrometry (ICP-MS) is a powerful tool enabling multi-elemental analysis of numerous matrices with high sensitivity and good precision. Various calibration approaches can be used to perform accurate quantitative measurements by ICP-MS. They include the use of pure standards, matrix-matched standards, or relevant certified reference materials, assuring traceability of the reported results. This review critically evaluates the advantages and limitations of different calibration approaches, which are used in quantitative analyses by ICP-MS. Examples of such analyses are provided. This article is part of the themed issue ‘Quantitative mass spectrometry’.

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“…Metallic elements and residual resin-derived organic compounds lead to inaccurate Cd isotope results. 32 Pallavicicini et al 20 suggest ashing of organic-rich matrices. Wei et al 5,6 removed the organic matter of plants by HClO4.…”

Section: Introductionmentioning

confidence: 99%

Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

et al. 2017

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Matrix effects on the multi-collector inductively coupled plasma mass spectrometric analysis of high-precision cadmium and zinc isotope ratios

Cited by 74 publications

References 38 publications

A practical guide for the design and implementation of the double-spike technique for precise determination of molybdenum isotope compositions of environmental samples

A practical guide for the design and implementation of the double-spike technique for precise determination of molybdenum isotope compositions of environmental samples

Quantitative aspects of inductively coupled plasma mass spectrometry

Chromatographic Separation of Cd from Plants via Anion-Exchange Resin for an Isotope Determination by Multiple Collector ICP-MS

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