Results 101 to 110 of about 2,020 (237)

Method Study for Determination of Penetration Time of Resin-fixed Beds Utilized in TRPO Solvent Purification

Yuanzineng kexue jishu
The TRPO process is a treatment methodology for high-level waste liquid that has been independently developed in China. This process uses TRPO as an extractant to remove long-lived isotopes such as transuranic elements and highly toxic isotopes such as ...
MA Yu, XU Cong
doaj   +1 more source

Investigating relationships among strontium, barium, and seasonality in wild baboons

Archaeometry, EarlyView.
Abstract Geochemical profiles of Australopithecus africanus and baboon teeth show fluctuating trace elements, possibly reflecting seasonal diets. Here we use laser ablation–inductively coupled plasma–mass spectrometric measurements of calcium‐normalized strontium and barium ratios (Sr/Ca and Ba/Ca) and ion microprobe analyses of oxygen isotopes (δ18O ...
Maya Bharatiya, Christine Austin, Manish Arora, Janaína N. Ávila, Esme K. Beamish, Wendy Dirks, Daniel R. Green, Nicole D. Leonard, W. Scott McGraw, Larissa Swedell, Ian S. Williams, Jian‐xin Zhao, Tanya M. Smith   +12 more
wiley   +1 more source

Distribution of Rubidium and Cesium and Their Associations with Lithium, Boron, and Potassium in Brine from Dabuxun Salt Lake, Qaidam Basin

Yankuang ceshi
Determining the distribution characteristics of rubidium (Rb) and cesium (Cs) in salt lake brines and their associations with lithium (Li), boron (B) and potassium (K) can facilitate the gradient development and comprehensive, efficient utilization of ...
Chuntao ZHAO, Shouchuan ZHANG, Liang CHEN, Zhiyong LING, Ze LIU, Dongmei YU, Jibin HAN, Jinjun HAN, Hongbo SUN, Jianping WANG   +9 more
doaj   +1 more source

1H NMR metabolomics and lipidomics analysis of neutrophils reveals biomarkers of ageing, inflammageing and frailty

The FEBS Journal, EarlyView.
Using 1H NMR metabolomics, we measured polar and lipid metabolites from human blood neutrophils from people with frailty (n = 31, mean age 84Y), people with rheumatoid arthritis (n = 16, mean age 55Y), robust older (n = 24, mean age 66Y) and healthy younger people (n = 21, mean age 22Y).
Genna Ali Abdullah, Grace Filbertine, Lucy Gill, Asangaedem Akpan, Marie M. Phelan, Helen Louise Wright   +5 more
wiley   +1 more source

Development of CCMb: A Low‐Mg Calcite Reference Material for In Situ Measurement of δ18O, δ13C and Selected Trace Elements

Geostandards and Geoanalytical Research, EarlyView.
Key Points Low‐Mg calcite RM developed for in situ microanalysis applications in palaeoclimatology (δ18O, δ13C; Mg, Sr m/m). New data for calcite CRM IAEA‐603 (δ18O, δ13C by SIMS and GS‐IRMS; Mg m/m). No detectable IMF effect of Mg on SIMS δ18O determinations for mass fractions < 3650 μg g‐1.
Andreas T. Hertwig, Maciej G. Śliwiński, Irene Cantarero, Richard A. Stern, Carles Fàbrega, Jakub T. Śliwiński, Thomas Ludwig, František Majs, William Nachlas, John H. Fournelle, Xavier Llovet, Rachelle B. Turnier, David Parcerisa, Anna Travé   +13 more
wiley   +1 more source

Accumulation of 137Cs and 90Sr radionuclides by dominants and co-dominants of birch-pine forest communities in Northern Ukraine

iForest - Biogeosciences and Forestry
Investigation of the post-Chernobyl accumulation of radionuclides in forest communities not only sheds light on the specific ecological aftermath of the disaster but also holds broader significance for enhancing our knowledge of radioactive contamination
Lukash O, Tkaczenko H, Yakovenko O, Szikura A, Kurhaluk N   +4 more
doaj   +1 more source

A Cesium-134 Trap for Isotope Use

The Florida Entomologist, 1975
E. S. Del Fosse, H. L. Cromroy
openaire   +1 more source

Assessment and Correction of Non‐Linearity Effects for In Situ Rb‐Sr Geochronology Applied to High 87Rb/86Sr Mica

Geostandards and Geoanalytical Research, EarlyView.
Key Points Measurement of 86Sr at count rates < 1500 cps can result in statistical bias. Non‐linear signals in analogue detection mode (e.g., Rb) present a challenge for accurately dating high 87Rb/86Sr mica (> 1000). Accounting for these considerations, high 87Rb/86Sr mica are dated here with accuracies of ∼ 1%.
Duane C. Petts, William J. Davis, Simon E. Jackson, Jamie A. Cutts, Janina Czas, Alfredo Camacho   +5 more
wiley   +1 more source

Resolving Micrometre‐Scale Zircon Growth in Silicic Systems by 7 μm LA‐MC‐ICP‐MS U‐Pb Dating: Linking Petrology and Geochronology in Silicic Volcanic and Granitic Rocks from Victoria, Australia

Geostandards and Geoanalytical Research, EarlyView.
Key Points 7 μm spot‐diameter LA‐MC‐ICP‐MS analyses yield accurate zircon U‐Pb ages. 1013 Ω amplifier resistors improve low‐signal Pb measurements. Saturn correction protocols minimise down‐hole fractionation effects. We present a systematic evaluation of high spatial‐resolution zircon U‐Pb dating using a Thermo Scientific Neoma multi‐collector ICP‐MS ...
Cristiano Lana, John D. Clemens
wiley   +1 more source

Bioaccumulation and translocation of radionuclides heavy metals in Cynodon dactylon: A phytoremediation approach in Al-Dora refinery

Journal of Radiation Research and Applied Sciences
Oil extraction methods such as fracking and drilling can disperse radioactive elements into the environment, posing potential hazards. Certain plants like Bermuda grass can combat this through rhizodegradation, a process that breaks down pollutants into ...
Raghad Mohammed, Hind F. Al-Gburi, Mohammed F. Alotaibi, Naif S. Almuqati, Sultan J. Alsufyani, Mohammed S. Almoiqli, Mubarak M. Albarq, Khalid N. Alharbi   +7 more
doaj   +1 more source