Application of HR-ICP-MS for the simultaneous measurement of zinc isotope ratios and total zinc content in human samples

2000 ◽  
Vol 15 (4) ◽  
pp. 315-321 ◽  
Author(s):  
Stefan Stürup
Keyword(s):  
Simultaneous Measurement ◽  
Zinc Content ◽  
Isotope Ratios ◽  
Human Samples ◽  
Zinc Isotope ◽  
Icp Ms

In situ Fe isotopic analyses of fourteen reference materials using a synthetic Cr standard for mass bias and isobaric interference corrections by femtosecond LA-MC-ICP-MS

2021 ◽  
Author(s):  
Lei Xu ◽  
Wen Zhang ◽  
Tao Luo ◽  
Jin-Hui Yang ◽  
Zhaochu Hu
Keyword(s):  
Reference Materials ◽  
Isotope Ratios ◽  
Isobaric Interference ◽  
Analytical Technique ◽  
Mass Bias ◽  
Icp Ms ◽  
Isotopic Analyses

High precise and accurate measurements of Fe isotope ratios for fourteen reference materials from the USGS, MPI-DING and CGSG were successfully carried out using a developed analytical technique by fs...

scholarly journals Comparison of Serum, Plasma, and Liver Zinc Measurements by AAS, ICP-OES, and ICP-MS in Diverse Laboratory Settings

2021 ◽  
Author(s):  
Andrew G. Hall ◽  
Janet C. King ◽  
Christine M. McDonald
Keyword(s):  
Inductively Coupled Plasma ◽  
Method Development ◽  
Geometric Mean ◽  
Zinc Content ◽  
Plasma Zinc ◽  
Icp Oes ◽  
Percent Error ◽  
Accuracy And Precision ◽  
Icp Ms ◽  
Standardized Method

AbstractProgress improving zinc nutrition globally is slowed by limited understanding of population zinc status. This challenge is compounded when small differences in measurement can bias the determination of zinc deficiency rates. Our objective was to evaluate zinc analytical accuracy and precision among different instrument types and sample matrices using a standardized method. Participating laboratories analyzed zinc content of plasma, serum, liver samples, and controls, using a standardized method based on current practice. Instrument calibration and drift were evaluated using a zinc standard. Accuracy was evaluated by percent error vs. reference, and precision by coefficient of variation (CV). Seven laboratories in 4 countries running 9 instruments completed the exercise: 4 atomic absorbance spectrometers (AAS), 1 inductively coupled plasma optical emission spectrometer (ICP-OES), and 4 ICP mass spectrometers (ICP-MS). Calibration differed between individual instruments up to 18.9% (p < 0.001). Geometric mean (95% CI) percent error was 3.5% (2.3%, 5.2%) and CV was 2.1% (1.7%, 2.5%) overall. There were no significant differences in percent error or CV among instrument types (p = 0.91, p = 0.15, respectively). Among sample matrices, serum and plasma zinc measures had the highest CV: 4.8% (3.0%, 7.7%) and 3.9% (2.9%, 5.4%), respectively (p < 0.05). When using standardized materials and methods, similar zinc concentration values, accuracy, and precision were achieved using AAS, ICP-OES, or ICP-MS. However, method development is needed for improvement in serum and plasma zinc measurement precision. Differences in calibration among instruments demonstrate a need for harmonization among laboratories.

scholarly journals In-situ determination of antimony isotope ratios in Sb minerals by femtosecond LA-MC-ICP-MS

2021 ◽  
Author(s):  
Andreas Benjamin Kaufmann ◽  
Marina Lazarov ◽  
Stefan Kiefer ◽  
Juraj Majzlan ◽  
Stefan Weyer
Keyword(s):  
Laser Ablation ◽  
Femtosecond Laser ◽  
Femtosecond Laser Ablation ◽  
Isotope Ratios ◽  
Icp Ms

Here we present a method for in-situ determination of stable antimony (Sb) isotope compositions by ultraviolet (UV)-femtosecond-laser-ablation-multi-collector-ICP-MS (fs-LA-MC-ICP-MS). Metallic antimony and a number of Sb minerals (stibnite, senarmontite, chalcostibite, tetrahedrite,...

scholarly journals Determinations of osmium isotope ratios in iron meteorites and iridosmines by ICP-MS.

1986 ◽  
Vol 20 (5) ◽  
pp. 233-239 ◽  
Author(s):  
Akimasa Masuda ◽  
Takafumi Hirata ◽  
Hiroshi Shimizu
Keyword(s):  
Isotope Ratios ◽  
Iron Meteorites ◽  
Icp Ms ◽  
Osmium Isotope

scholarly journals IsoFishR: An application for reproducible data reduction and analysis of strontium isotope ratios (87Sr/86Sr) obtained via laser-ablation MC-ICP-MS

PLoS ONE ◽  
2018 ◽  
Vol 13 (9) ◽  
pp. e0204519 ◽  
Author(s):  
Malte Willmes ◽  
Katherine M. Ransom ◽  
Levi S. Lewis ◽  
Christian T. Denney ◽  
Justin J. G. Glessner ◽  
...  
Keyword(s):  
Laser Ablation ◽  
Data Reduction ◽  
Isotope Ratios ◽  
Strontium Isotope ◽  
Icp Ms ◽  
Strontium Isotope Ratios
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