A fast, single column extraction chromatography method for the isolation of Neodymium from iron-rich materials prior to radiogenic isotope ratio measurements

2022 ◽  
Author(s):  
Abdelmouhcine GANNOUN ◽  
Krzysztof SUCHORSK ◽  
Christian Pin
Keyword(s):  
Extraction Chromatography ◽  
Isotope Ratio ◽  
Separation Method ◽  
Chromatography Method ◽  
Radiogenic Isotope ◽  
Synergistic Enhancement ◽  
Isotopic Analyses ◽  
Single Column ◽  
Column Extraction ◽  
Isotope Ratio Measurements

A novel separation method is described for the separation of Nd from Fe-rich, silicate samples in view of isotopic analyses. The procedure is based on the synergistic enhancement of the...

A tandem-column extraction chromatography for Nd separation: minimizing mass-independent isotope fractionation for ultrahigh-precision Nd isotope-ratio analysis

2022 ◽  
Author(s):  
Da Wang ◽  
Richard Carlson
Keyword(s):  
Solar System ◽  
Extraction Chromatography ◽  
Isotope Ratio ◽  
Isotope Fractionation ◽  
Ratio Analysis ◽  
Nd Isotope ◽  
Planetary Differentiation ◽  
Isotope Ratio Analysis ◽  
Isotope System ◽  
Column Extraction

The short-lived 146Sm-142Nd isotope system traces key early planetary differentiation processes that occurred during the first 500 million-years of solar system history. The variations of 142Nd/144Nd in terrestrial samples, typically...

Studies on purification of 89Sr from irradiated yttria target by multi-column extraction chromatography using DtBuCH18-C-6/XAD-7 resin

2019 ◽  
Vol 107 (6) ◽  
pp. 479-487 ◽  
Author(s):  
Debasish Saha ◽  
Jayagopal Vithya ◽  
Ramalingam Kumar ◽  
Mathew Joseph
Keyword(s):  
Extraction Chromatography ◽  
Selective Extraction ◽  
Exchange Chromatography ◽  
Resin Matrix ◽  
Pain Palliation ◽  
Cation Exchange Chromatography ◽  
Extraction And Purification ◽  
Single Column ◽  
Test Reactor ◽  
Column Extraction

Abstract89Sr is being produced using yttria target via the nuclear reaction89Y(n,p)89Sr in Fast Breeder Test Reactor (FBTR), Kalpakkam. The isotope89Sr is a pure beta emitter with a half-life of 50.53 days which is useful mainly for bone pain palliation in patients with bone metastases. The existing method for processing the irradiated yttria target to obtain the pure89Sr source involves separation of the bulk yttrium target by solvent extraction using TBP-HNO3followed by purification of89Sr source by cation exchange chromatography technique using Dowex resin. The study described here involves the selective extraction and purification of89Sr by multi-column extraction chromatography technique using the Sr-specific crown ether, DtBuCH18C6 (CE) coated onto an XAD-7 resin matrix for superior separation and increased yield compared to single column technique. The89Sr source thus purified from the irradiated yttria target is free from other radionuclidic impurities produced during the target irradiation i.e.88Y,65Zn,139,141Ce,154Eu and160Tb.

Simplified and automatable radiochemical separation strategy for the production of radiopharmaceutical quality 86Y using single column extraction chromatography

2018 ◽  
Vol 142 ◽  
pp. 28-31 ◽  
Author(s):  
Eduardo Aluicio-Sarduy ◽  
Reinier Hernandez ◽  
Hector F. Valdovinos ◽  
Christopher J. Kutyreff ◽  
Paul A. Ellison ◽  
...  
Keyword(s):  
Radiochemical Separation ◽  
Extraction Chromatography ◽  
Single Column ◽  
Separation Strategy ◽  
Column Extraction

Chromium isotope ratio measurements in environmental matrices by MC-ICP-MS

2016 ◽  
Vol 31 (7) ◽  
pp. 1464-1471 ◽  
Author(s):  
Simon Pontér ◽  
Nicola Pallavicini ◽  
Emma Engström ◽  
Douglas C. Baxter ◽  
Ilia Rodushkin
Keyword(s):  
Isotope Ratio ◽  
Measurement Method ◽  
Soil Profiles ◽  
Isotope Ratio Measurement ◽  
Environmental Matrices ◽  
Biological Matrices ◽  
Ratio Measurement ◽  
Icp Ms ◽  
Single Column ◽  
Isotope Ratio Measurements

A single column separation and concentration/isotope ratio measurement method for Cr by ICP-MS (single and multicollector) was evaluated and optimized for geological and biological matrices. Results showδ53Cr homogeneity in different urban soil profiles and suggest isotopically light signature for airborne Cr emitted by steelworks.

Determination of Hg(II) in drinking water by atomic absorption spectrometry - Cold vapour method after concentration by column extraction chromatography

1984 ◽  
Vol 49 (5) ◽  
pp. 1134-1139 ◽  
Author(s):  
Zdeněk Šmejkal ◽  
Jitka Tauferová ◽  
Mária Madová ◽  
Zlatica Teplá
Keyword(s):  
Drinking Water ◽  
Atomic Absorption Spectrometry ◽  
Atomic Absorption ◽  
Extraction Chromatography ◽  
Absorption Spectrometry ◽  
Average Yield ◽  
Water Mains ◽  
Cold Vapour ◽  
Column Extraction

The method describes concentration of mercury in samples of drinking water from water mains with Hg concentration above 1.0 . 10-7 g l-1 (5.0 . 10-10mol l-1) by means of extraction chromatography on a column packed with a carrier Synachrom E-5 wetted with saturated solution of bis(diethyldithiocarbamate)copper(II) complex in 1 : 1 mixture 1,2-dichlorobenzene + cyclohexane. After elution with 3.0 mol l-1 HCl the mercury concentration in the eluate is determined by atomic absorption spectrometry - cold vapour method. Average yield of the mercury separation from the model solutions was 95.8%.

Transient signal isotope analysis using multicollection of ion beams with Faraday cups equipped with 1012 Ω and 1011 Ω feedback resistors

2015 ◽  
Vol 30 (7) ◽  
pp. 1582-1589 ◽  
Author(s):  
Alkiviadis Gourgiotis ◽  
Gérard Manhès ◽  
Pascale Louvat ◽  
Julien Moureau ◽  
Jérôme Gaillardet
Keyword(s):  
Isotope Ratio ◽  
Isotope Analysis ◽  
Ion Beams ◽  
Signal Duration ◽  
Transient Signal ◽  
Potential Use ◽  
Isotope Ratio Measurements

This work is a first attempt to evaluate the potential use of 1012 Ω amplifiers for transient signal isotope analysis. We showed how the transient signal duration influences the accuracy of the isotope ratio measurements.

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