Potassium isotopic composition of 7 widely available biological standards using collision cell (CC)-MC-ICP-MS.

2021 ◽  
Author(s):  
Frédéric Moynier ◽  
Yan Hu ◽  
Wei Dai ◽  
Brandon Mahan ◽  
Julien MOUREAU
Keyword(s):  
Isotopic Composition ◽  
Inductively Coupled Plasma ◽  
Isotope Geochemistry ◽  
Collision Cell ◽  
Mass Spectrometers ◽  
Inductively Coupled ◽  
Icp Ms

The development of collision-cell multi-collection inductively-coupled-plasma mass-spectrometers has revolutionized K isotope geochemistry, improving the sensitivity by over a factor 10 compared to older generation instruments. The application of isotope geochemistry...

Some features of the analysis of water, soil and ground in mass spectrometers with inductively coupled plasma (ICP-MS)

2021 ◽  
Vol 5 ◽  
pp. 70-78
Author(s):  
T. K. Nurubeyli ◽  
Keyword(s):  
Matrix Element ◽  
Space Charge ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Atomic Emission ◽  
Space Charge Density ◽  
Mass Spectrometers ◽  
Mass Spectral ◽  
Inductively Coupled ◽  
Icp Ms

The paper discusses the possibilities and limitations of the method of mass spectrometry with inductively coupled plasma on the example of elemental analysis of natural and drinking waters, soils and grounds. It is shown that the combination of this method with the simpler atomic emission method makes it possible to expand the range of determined elements, simplify the mass-spectral analysis and increase its reliability. It is shown that the use of the ICP-MS method in the analysis of various objects makes it possible to determine the majority of elements with extremely low detection limits. The reason for the manifestation of matrix effects is the positive space charge formed between the interface and the extractor, the composition of which is determined by the composition of singly charged argon ions. The increase in the concentration of ions in this region is the appearance of a matrix element, which facilitates the scattering of ions from this region. It was found that the heavier the ions of the matrix element, the more the space charge density increases and the scattering occurs. A serious limitation of the method is associated with interferences due to the presence of a certain amount of two and three-charged ions in the plasma. These ions, which have approximately the same mass as the isotopes of the element being determined, are formed as a result of various plasma-chemical reactions and interfere with the determination.

High-precision analysis of potassium isotopes by MC-ICP-MS without collision cell using cool plasma technique in low resolution mode

2021 ◽  
Author(s):  
Hai-Ou Gu ◽  
Sun He
Keyword(s):  
High Precision ◽  
Inductively Coupled Plasma ◽  
Isotope Analysis ◽  
Collision Cell ◽  
Low Resolution ◽  
Inductively Coupled ◽  
Plasma Technique ◽  
Icp Ms ◽  
Cool Plasma ◽  
Plasma Mass Spectrometry

This study presents a method for high-precision stable potassium (K) isotope analysis using Multi-Collector Inductively Coupled Plasma Mass Spectrometry (MC-ICPMS) without collision cell in low resolution mode. Cold plasma technique...

scholarly journals The performance of single and multi-collector ICP-MS instruments for fast and reliable34S/32S isotope ratio measurements

2016 ◽  
Vol 8 (42) ◽  
pp. 7661-7672 ◽  
Author(s):  
Ondrej Hanousek ◽  
Marion Brunner ◽  
Daniel Pröfrock ◽  
Johanna Irrgeher ◽  
Thomas Prohaska
Keyword(s):  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Mass Spectrometers ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Technical Principles ◽  
Isotope Ratio Measurements ◽  
S Isotope

The performance and validation characteristics of different single collector inductively coupled plasma mass spectrometers based on different technical principles (ICP-SFMS, ICP-QMS in reaction and collision modes, and ICP-MS/MS) were evaluated in comparison to the performance of MC ICP-MS for fast and reliable S isotope ratio measurements.

Precise measurement of stable potassium isotope ratios using a single focusing collision cell multi-collector ICP-MS

2016 ◽  
Vol 31 (4) ◽  
pp. 1023-1029 ◽  
Author(s):  
Weiqiang Li ◽  
Brian L. Beard ◽  
Shilei Li
Keyword(s):  
High Precision ◽  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Isotope Ratio ◽  
Precise Measurement ◽  
Isotope Ratios ◽  
Collision Cell ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Isotope Ratio Measurements

High precision potassium isotope ratio measurements were made using a collision-cell equipped single focusing Multi-Collector Inductively Coupled Plasma Mass Spectrometer (MC-ICP-MS).

Isotopic composition and geochemical features of ores of Dzhusa pyrite-polymetallic deposit (South Urals)

2019 ◽  
pp. 78-83
Author(s):  
E. I. Yartsev ◽  
I. V. Vikentyev ◽  
N. I. Eremin
Keyword(s):  
Isotopic Composition ◽  
Inductively Coupled Plasma ◽  
Sulfur Isotopes ◽  
Ore Deposits ◽  
South Urals ◽  
Sulfur Isotopic Composition ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Highly Sensitive ◽  
First Time

The sulfur isotopic composition was studied for the main morphological types and generation of sulfides composing the ore of the Dzhusinsky deposit, and the content of trace elements was analyzed using the highly sensitive method of mass spectrometry with inductively coupled plasma and laser sampling (LA-ICP-MS). Both types of studies were performed for ore deposits for the first time. According to the geochemistry of sulfur isotopes, its deep magmatic source was reconstructed, which made a predominant contribution to the ore-forming fluid. Using the modules of the STATISTICA, correlations were calculated and the patterns of distribution of micro impurities in sulfide minerals were revealed.

scholarly journals Application of the Collision Cell (CCT) in the ICP-MS Analytical System

2005 ◽  
pp. 120-125
Author(s):  
Éva Széles ◽  
Béla Kovács ◽  
József Prokisch ◽  
Zoltán Győri
Keyword(s):  
Inductively Coupled Plasma ◽  
System Analysis ◽  
Collision Cell ◽  
Raw Material ◽  
Animal Origin ◽  
Organic Fertiliser ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Calcium Magnesium ◽  
Analytical System

Our laboratory has seen a sharp rise in the number of requests for the analysis of smaller and smaller concentrations of elements from foods, plants, soil, organic fertiliser, irrigation and ground water, sewage, sewage sludge, raw material of food, as well as human and animal origin samples. From the above elements the inductively coupled plasma mass spectrometer is capable of analysing the smallest concentration of elements. Our method of analysis is to use our ICP-MS instrument, together with a ICP-MS with Collision Cell Technology (CCT). The CCT method has better detection limit, with 1-3 magnitudes, compared to the normal ICP-MS analytical method. The CCT has better detection limits mainly for the following elements in the periodical system: analysis of arsenic, selenium, germanium, vanadium and chromium. Additionally a collision cell can be applied for the analysis of silicium, sulphur, zink, copper, iron, calcium, magnesium and potassium in smaller concentrations.

The absolute isotopic composition and atomic weight of ytterbium using multi-collector inductively coupled plasma mass spectrometry and development of an SI-traceable ytterbium isotopic certified reference material

2015 ◽  
Vol 30 (6) ◽  
pp. 1377-1385 ◽  
Author(s):  
Jun Wang ◽  
Tongxiang Ren ◽  
Hai Lu ◽  
Tao Zhou ◽  
Yuanjing Zhou
Keyword(s):  
Mass Spectrometry ◽  
Isotopic Composition ◽  
Inductively Coupled Plasma ◽  
Atomic Weight ◽  
Inductively Coupled ◽  
Terrestrial Source ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
The Absolute ◽  
Source Materials

The absolute isotopic composition of ytterbium in six varieties of (terrestrial source) materials were determined using MC-ICP-MS.

scholarly journals Determination of the validation parameters of inductively coupled plasma mass spectrometer (iCP-mS): response curve linearity in the case of arsenic and selenium

2012 ◽  
pp. 67-71
Author(s):  
Dávid Andrási ◽  
Béla Kovács
Keyword(s):  
Mass Spectrometer ◽  
Inductively Coupled Plasma ◽  
Limit Of Detection ◽  
Performance Characteristics ◽  
Sample Type ◽  
Mass Spectrometers ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Validation Parameters ◽  
Validation Procedure

In the field of elemental analysis inductively coupled plasma mass spectrometers (ICP-MS) have the best sensitivity that means the lowest limit of detection, subsequently their applicability for the detection of essential and toxic elements in foods and foodstuffs is prominent. For the most elements could be measured the detection limit is between μg kg-1 (ppb) and ng kg-1 (ppt) e.g. for arsenic and selenium. Considering an analytical task (sample type, analytes and their concentration, pretreatment procedure etc.) the applicability of an analytical method is determined by its performance characteristics. The purpose of validation is to ensure that the method would be used fulfills the requirements of the given task. In this article we describes one of the performance characteristics, the linearity, and the whole validation procedure aims measurement of arsenic and selenium in foodstuffs by inductively coupled plasma mass spectrometer (Thermo XSeries I.); but because of the limited number of pages the results are demonstrated only for arsenic. The linearity of calibration was evaluated in three concentration ranges (0.1–1 μg l-1; 1–10 μg l-1; 10–50 μg l-1), with nine line-fit possibilities (without weighting, weighting with absolute or relative deviation; with or without forcing the curve through blank or origin) and different methods (graphical examination, correlation coefficient, analysis of variance). The best method to ensure the linearity of correspondence between signal and concentration was the ANOVA test. In view of calibrations it was found that the range of 10–50 μg l-1 could be regarded as linear with four line-fit possibilities, and was non-linear between 0.1–1 μg l-1 and 1–10 μg l-1.

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