High sensitivity skimmers and non-linear mass dependent fractionation in ICP-MS

2009 ◽  
Vol 24 (6) ◽  
pp. 742 ◽  
Author(s):  
Karla Newman ◽  
Philip A. Freedman ◽  
Jamie Williams ◽  
Nick S. Belshaw ◽  
Alex N. Halliday
Keyword(s):  
High Sensitivity ◽  
Linear Mass ◽  
Icp Ms ◽  
Non Linear ◽  
Mass Dependent ◽  
Mass Dependent Fractionation

In situ Nd isotope analyses in geological materials with signal enhancement and non-linear mass dependent fractionation reduction using laser ablation MC-ICP-MS

2015 ◽  
Vol 30 (1) ◽  
pp. 232-244 ◽  
Author(s):  
Lei Xu ◽  
Zhaochu Hu ◽  
Wen Zhang ◽  
Lu Yang ◽  
Yongsheng Liu ◽  
...  
Keyword(s):  
Laser Ablation ◽  
High Efficiency ◽  
Linear Mass ◽  
Nd Isotope ◽  
Bias Stability ◽  
Icp Ms ◽  
Non Linear ◽  
Mass Dependent ◽  
Mass Dependent Fractionation ◽  
Isotope Analyses

Combining high-efficiency cones with the addition of nitrogen in laser ablation MC-ICP-MS not only enhances the sensitivity and mass bias stability, but also suppresses the non-linear mass fractionation for Nd isotope analyses.

Matrix effects using an ICP-MS with a single positive ion lens and grounded stop: analyte mass dependent?

2017 ◽  
Vol 32 (5) ◽  
pp. 951-966 ◽  
Author(s):  
John W. Olesik ◽  
Shi Jiao
Keyword(s):  
Gas Flow ◽  
Matrix Effects ◽  
Mass Matrix ◽  
Gas Flow Rate ◽  
Icp Ms ◽  
Single Positive ◽  
Mass Dependent ◽  
Positive Ion ◽  
Comprehensive Characterization

Comprehensive characterization of ICP-MS matrix effects as a function of analyte mass, matrix mass, lens voltage and nebulizer gas flow rate was carried out.

scholarly journals Experience in applying a local analysis an sulfur isotopes in the ore sulfides of the largest deposits of Bodaibinsky Synclinoria (Eastern Siberia)

2019 ◽  
Vol 484 (4) ◽  
pp. 460-463
Author(s):  
N. A. Goryachev ◽  
A. V. Ignatiev ◽  
T. A. Velivetskaya ◽  
A. E. Budyak ◽  
Yu. I. Tarasova
Keyword(s):  
Isotopic Composition ◽  
Sulfur Isotopes ◽  
Gold Deposits ◽  
Local Analysis ◽  
Eastern Siberia ◽  
The Law ◽  
Mass Dependent ◽  
Mass Dependent Fractionation

The experience of LA—ICP determining of the isotopic composition of sulfur pyrite and arsenopyrite of gold deposits of the Baikal-patomsky plateau is considered. The technique is characterized. It is shown that all the studied samples have values δ34S and δ33S strictly corresponding to the law of mass-dependent fractionation of sulfur isotopes. A regular alleviation of the isotopic composition of sulfur of pyrite as its crystals grow for Sukhoi Log and the isotopic homogeneity of pyrite and pyrrhotite of the Golets Vysokhashiy deposit are established. It is concluded that the possible role of metamorphism of the Mamsko-Oronsky belt in the formation of isotopic homogeneity of ore sulfides.

A critical review on isotopic fractionation correction methods for accurate isotope amount ratio measurements by MC-ICP-MS

2018 ◽  
Vol 33 (11) ◽  
pp. 1849-1861 ◽  
Author(s):  
Lu Yang ◽  
Shuoyun Tong ◽  
Lian Zhou ◽  
Zhaochu Hu ◽  
Zoltán Mester ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Critical Review ◽  
Inductively Coupled Plasma ◽  
Isotopic Fractionation ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Mass Dependent ◽  
Isotope Amount Ratio

Proper correction of mass-dependent and mass-independent isotopic fractionation is crucial to obtain accurate isotope amount ratios by multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS).

scholarly journals Technical Note: Isotopic corrections for the radiocarbon composition of CO<sub>2</sub> in the soil gas environment must account for diffusion and diffusive mixing

2019 ◽  
Vol 16 (16) ◽  
pp. 3197-3205
Author(s):  
Jocelyn E. Egan ◽  
David R. Bowling ◽  
David A. Risk
Keyword(s):  
Gas Transport ◽  
Transport Model ◽  
Stable Carbon Isotope ◽  
Technical Note ◽  
Soil Gas ◽  
Soil Production ◽  
Gas Environment ◽  
Diffusive Mixing ◽  
Mass Dependent ◽  
Mass Dependent Fractionation

Abstract. Earth system scientists working with radiocarbon in organic samples use a stable carbon isotope (δ13C) correction to account for mass-dependent fractionation, but it has not been evaluated for the soil gas environment, wherein both diffusive gas transport and diffusive mixing are important. Using theory and an analytical soil gas transport model, we demonstrate that the conventional correction is inappropriate for interpreting the radioisotopic composition of CO2 from biological production because it does not account for important gas transport mechanisms. Based on theory used to interpret δ13C of soil production from soil CO2, we propose a new solution for radiocarbon applications in the soil gas environment that fully accounts for both mass-dependent diffusion and mass-independent diffusive mixing.

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