Results 1 to 10 of about 70,014 (336)

Development of 225Ac Production from Low Isotopic Dilution 229Th [PDF]

open access: yesACS Omega, 2023
Jose F. Camacaro   +11 more
doaj   +2 more sources

Research on Isotope Dilution Gamma Spectroscopy for Determining Plutonium Concentration

open access: yesYuanzineng kexue jishu, 2023
Preliminary validation of isotope dilution gamma spectroscopy (IDGS) for plutonium concentration measurement was investigated in this study. A high 239Pu abundance plutonium solution was used as an isotope dilution agent.
WANG Yan;LIU Hongbin;HE Lixia;XU Xiaoming
doaj   +1 more source

PoolDilutionR: An R package for easy optimization of isotope pool dilution calculations

open access: yesMethods in Ecology and Evolution, 2023
Isotopic pool dilution is a powerful approach to quantify gross biogeochemical transformation rates, but remains seldom used despite its potential. To facilitate broader implementation of pool dilution methods, we present a user‐friendly R package that ...
Kendalynn A. Morris   +6 more
doaj   +1 more source

Optimization of double isotope dilution [PDF]

open access: yesJournal of Analytical Atomic Spectrometry, 2022
A piece of code is provided to easily implement double isotope dilution to obtain the lowest uncertainty.
Quemet, Alexandre, Baghdadi, Sarah
openaire   +1 more source

13C Isotope Labelling to Follow the Flux of Photorespiratory Intermediates

open access: yesPlants, 2021
Measuring the carbon flux through metabolic pathways in intact illuminated leaves remains challenging because of, e.g., isotopic dilution by endogenous metabolites, the impossibility to reach isotopic steady state, and the occurrence of multiple pools ...
Cyril Abadie, Guillaume Tcherkez
doaj   +1 more source

Tracking sources and fate of groundwater nitrate in Kisumu City and Kano Plains, Kenya [PDF]

open access: yes, 2020
Groundwater nitrate (NO3−) pollution sources and in situ attenuation were investigated in Kisumu city and Kano plains. Samples from 62 groundwater wells consisting of shallow wells (hand dug, depth 15 m) were obtained during wet (May–July 2017) and dry ...
Boeckx, Pascal   +2 more
core   +1 more source

Levels of Alternaria Toxins in Selected Food Commodities Including Green Coffee

open access: yesToxins, 2020
Alternaria toxins are emerging mycotoxins, candidates for regulation by European Authorities. Therefore, highly sensitive, confirmatory, and reliable analytical methodologies are required for their monitoring in food. In that context, an isotope dilution
Claudia Mujahid   +6 more
doaj   +1 more source

On Presolar Stardust Grains from CO Classical Novae [PDF]

open access: yes, 2018
About 30% to 40% of classical novae produce dust 20-100 days after the outburst, but no presolar stardust grains from classical novae have been unambiguously identified yet.
Downen, Lori   +4 more
core   +4 more sources

Measurement of isotopically-exchangeable Zn in Zn-deficient paddy soil [PDF]

open access: yes, 2015
The changes in soil chemistry following submergence of a soil for rice production result in zinc (Zn) being immobilized in very insoluble forms. Consequently, Zn deficiency is widespread in rice crops and in human populations that subsist on rice.
Atkinson   +32 more
core   +2 more sources

CMC development of [14C]-labeled sotorasib for the conduct of microtracer human ADME study

open access: yesAAPS Open, 2023
Human absorption, distribution, metabolism, and excretion (hADME) studies of new drugs are required for global regulatory filings. Recent advances in high sensitivity analytical technologies have enabled microtracer hADME studies wherein very low ...
Sonika Sharma   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy