A calculation method based on isotope ratios for the determination of dead time and its uncertainty in ICP-MS and application of the method to investigating some features of a continuous dynode multiplier

1999 ◽  
Vol 14 (7) ◽  
pp. 1075-1079 ◽  
Author(s):  
Andrea Held ◽  
Philip D. P. Taylor
Keyword(s):  
Calculation Method ◽  
Dead Time ◽  
Isotope Ratios ◽  
Icp Ms

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 Determination of lead concentrations and isotope ratios in recent snow samples from high alpine sites with a double focusing ICP-MS

1997 ◽  
Vol 359 (4-5) ◽  
pp. 382-384 ◽  
Author(s):  
T. D�ring ◽  
M. Schwikowski ◽  
H. W. G�ggeler
Keyword(s):  
Isotope Ratios ◽  
Icp Ms ◽  
Double Focusing ◽  
Snow Samples

Automation and miniaturization of an on-line flow injection Sr/matrix separation method for accurate, high throughput determination of Sr isotope ratios by MC-ICP-MS

2008 ◽  
Vol 23 (10) ◽  
pp. 1388 ◽  
Author(s):  
Patrick Galler ◽  
Andreas Limbeck ◽  
Márta Uveges ◽  
Thomas Prohaska
Keyword(s):  
High Throughput ◽  
Flow Injection ◽  
Isotope Ratios ◽  
Separation Method ◽  
Sr Isotope ◽  
Matrix Separation ◽  
Icp Ms ◽  
Line Flow ◽  
On Line

In situ determination of precise stable Si isotope ratios by UV-femtosecond laser ablation high-resolution multi-collector ICP-MS

2008 ◽  
Vol 249 (1-2) ◽  
pp. 155-166 ◽  
Author(s):  
Jérôme Chmeleff ◽  
Ingo Horn ◽  
Grit Steinhoefel ◽  
Friedhelm von Blanckenburg
Keyword(s):  
Laser Ablation ◽  
High Resolution ◽  
Femtosecond Laser ◽  
Femtosecond Laser Ablation ◽  
Isotope Ratios ◽  
Icp Ms ◽  
Si Isotope

Evaluation of the accuracy of the determination of lead isotope ratios in wine by ICP MS using quadrupole, multicollector magnetic sector and time-of-flight analyzers

Talanta ◽  
2001 ◽  
Vol 54 (2) ◽  
pp. 307-317 ◽  
Author(s):  
Mireille Barbaste ◽  
Ludwik Halicz ◽  
Albert Galy ◽  
Bernard Medina ◽  
Hakan Emteborg ◽  
...  
Keyword(s):  
Lead Isotope ◽  
Time Of Flight ◽  
Isotope Ratios ◽  
Magnetic Sector ◽  
Lead Isotope Ratios ◽  
Icp Ms

Precise and accurate determination of boron isotope ratios by multiple collector ICP-MS: origin of boron in the Ngawha geothermal system, New Zealand

2003 ◽  
Vol 199 (3-4) ◽  
pp. 331-342 ◽  
Author(s):  
J.K. Aggarwal ◽  
D. Sheppard ◽  
K. Mezger ◽  
E. Pernicka
Keyword(s):  
New Zealand ◽  
Accurate Determination ◽  
Isotope Ratios ◽  
Boron Isotope ◽  
Geothermal System ◽  
Icp Ms

Precise determination of Pb isotope ratios by simple double spike MC-ICP-MS technique without Tl addition

2007 ◽  
Vol 22 (4) ◽  
pp. 407 ◽  
Author(s):  
Akio Makishima ◽  
B. Nagender Nath ◽  
Eizo Nakamura
Keyword(s):  
Isotope Ratios ◽  
Precise Determination ◽  
Pb Isotope ◽  
Icp Ms

Application of lead isotope ratios for pollution source investigation in the marine environment

2020 ◽  
Author(s):  
Emiliya Vassileva ◽  
Anna Maria Orani ◽  
Sergey Assonov
Keyword(s):  
Isotopic Composition ◽  
Lead Isotope ◽  
Isotope Ratios ◽  
Environmental Matrices ◽  
Total Uncertainty ◽  
Lead Isotope Ratios ◽  
Icp Ms ◽  
Seawater Samples ◽  
Biota Samples

<p><span><span>Lead is a non-essential toxic element that at high levels of human exposure causes damage to many organs of the human body. This element naturally occurs in the Earth crust, but its biogeochemical cycle has been altered by anthropogenic activities, which have introduced high amount of this element from different sources. Among inorganic contaminants, Pb is perhaps the most studied, but the determination of its total concentration only is not sufficient for a proper evaluation of contamination sources. Discrimination of anthropogenic and geogenic lead sources requires both precise and accurate isotope ratio determination as well as high versatility due to the complexity of environmental matrices, such as sediments, biota and seawater. This element has a partially radiogenic isotopic composition with 208Pb, 206Pb and 207Pb originating from the radioactive decay of 238U, 235U and 232Th respectively and 204Pb representing the only natural stable isotope. This characteristic isotopic composition represents a powerful analytical tool as it allows to trace the sources, fate and effects of possible Pb contamination. The most common way to express the Pb isotopic composition is using the ratio 206Pb/207Pb, because of the easy interference-free determination and isotopes’ abundance. The determination of 204Pb by ICP-MS is quite challenging as this is also the least abundant among Pb isotopes (about 1.4%) and it is also affected by isobaric interference from 204Hg. The latter derives from both sample matrices and from plasma/sweep gas supplies and it represents a big analytical challenge, especially for marine biota samples, where the amount of Hg can be up to 100 times higher than Pb. </span></span></p><p><span><span>In this work we present the development and the application of analytical methodology for the accurate and precise determination of Pb isotope ratios by HR-ICP-MS in different marine environmental matrices (sediments, seawater and biota). Analytical procedures are involving a separation of Pb from the sample matrix and mercury, present in the sample. For seawater samples, the use of the SeaFAST automated system allowed simultaneous matrix separation and analyte pre-concentration before ICP-MS analysis. A comparison of results for lead isotope ratios obtained with MC-ICP-MS and HR ICP-MS in the same samples, in all cases, showed very good agreement . The total uncertainty associated to each result was estimated and all major contributions to the combined uncertainty of the obtained results were identified. As all such studies involve companions of different datasets, the uncertainty estimation is critical to ensure correct companions.  The developed methodology was applied to different marine samples, namely sediments from Caribbean, Baltic and Namibian coasts, biota samples from French Polynesia, seawater samples from Mediterranean and Arctic seas.</span></span><span><span> </span></span></p>

Precise determination of Os isotope ratios in the 15–4000 pg range using a sparging method using enhanced-sensitivity multiple Faraday collector-inductively coupled plasma-mass spectrometry

2014 ◽  
Vol 29 (8) ◽  
pp. 1483-1490 ◽  
Author(s):  
Jun-Ichi Kimura ◽  
Tatsuo Nozaki ◽  
Ryoko Senda ◽  
Katsuhiko Suzuki
Keyword(s):  
Inductively Coupled Plasma ◽  
Isotope Ratios ◽  
Precise Determination ◽  
Faraday Cup ◽  
Inductively Coupled ◽  
Enhanced Sensitivity ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Os Isotope

Precise determination of Os isotope ratios in 15–4000 pg Os by sparging-Multiple Faraday Cup-ICP-MS.

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