Results 11 to 20 of about 64,717 (306)
Blank Correction in Isotope Dilution
Analytical Chemistry, 2015 A novel method for compensation of the procedural blank in isotope dilution is presented. This method, entitled "blank-matching", copes with the blank through experimental design. Both sample and calibration solutions are exposed to the same amount of isotopic standard and same procedural blank.
Pagliano, Enea +2 more
openaire +4 more sources
Fractionation of lead in soil by isotopic dilution and sequential extraction [PDF]
, 2011 ‘Reactivity’ or ‘lability’ of lead is difficult to measure using traditional methods. We investigated the use of isotopic dilution with 204Pb to determine metal reactivity in four soils historically contaminated with contrasting sources of Pb, including (
A. M. Tye +37 more
core +2 more sources
Ultra-trace Cu isotope ratio measurements via multi-collector ICP-mass spectrometry using Ga as internal standard : an approach applicable to micro-samples [PDF]
, 2018 The capabilities of Cu isotope ratio measurements are often restricted by the small volumes of sample available and/or their low Cu concentration. In this work, an analytical approach was developed for performing Cu isotopic analysis via multi-collector ...
Costas Rodriguez, Marta +2 more
core +1 more source
Solution to the isotope dilution challenge [PDF]
Analytical and Bioanalytical Chemistry, 2015 Over the years, isotope dilution mass spectrometry (IDMS) has witnessed many reformulations. One of the earliest expressions for this quantitation model was given by the single isotope dilution (IDMS). In IDMS, the mass fraction of an analyte A is obtained from mass spectrometric analysis of a mixture (blend) of sample and an isotopically-enriched form
openaire +3 more sources
Nutrición Hospitalaria, 2012 Introducción: En Chile, la prevalencia de obesidad en los escolares es de 21,3%. El estudio y la intervención individual de esta malnutrición, hacen necesario contar no sólo con indicadores globales de estado nutricional, sino también, indicadores que ...
F. Vásquez +5 more
doaj +1 more source
Hydrology, 2023 Accurate discharge measurement is mandatory for any hydrological study. While the “velocity” measurement method is adapted to laminar flows, the “dilution” method is more appropriate for turbulent streams.
Antoine Picard +8 more
doaj +1 more source
Food and Energy Security, 2023 The availability of phosphorus (P) fertilizer applied to soil can diminish rapidly because of the complex soil P immobilization processes. However, the quantitative distribution of fertilizer P in the soil P fractions is not fully understood.
Dongfang Zheng +5 more
doaj +1 more source
Isotopic Abundance and Chemical Purity Analysis of Stable Isotope Deuterium Labeled Sudan I
Journal of Isotopes, 2014 It is important that to analysis of the isotopic abundance and chemical purity of Sudan I-D5, which is the internal standard of isotope dilution mass spectrometry.
CAI Yin-ping;LEI Wen;ZHENG Bo;DU Xiao-ning
doaj +1 more source
CMC development of [14C]-labeled sotorasib for the conduct of microtracer human ADME study
AAPS 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
On Presolar Stardust Grains from CO Classical Novae [PDF]
, 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