Results 11 to 20 of about 831,647 (217)
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
Blank Correction in Isotope Dilution
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
Isotopic Abundance and Chemical Purity Analysis of Stable Isotope Deuterium Labeled Sudan I
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
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According to Organisation Internationale de la vigne et du vin (OIV) standards, when analysing the stable isotope ratio of deuterium to hydrogen D/H at the methyl (I) and methylene (II) site of ethanol from concentrated must, a dilution with tap water is
Matteo Perini +4 more
doaj +1 more source
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
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Syntheses of Labeled Dimethyl Phthalate-D6
The synthesis of labeled standard dimethyl phthalate-D6,with CD3OD and benzene anhydride as raw materials by an efficient and no-dilution of isotopic enrichment method was presented, under the catalysis of condensing agent to generate dimethyl phthalate-
XU Zhong-jie;LU Wei-jing;SUN Wen;JIANG Zhe;LI Bing-yao;PAN Jie
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The need for speed – Burnup determination of spent nuclear fuel
Here we present the application of a novel analytical approach for high-speed evaluation of burn-up in spent nuclear fuel. This automated online separation–direct analysis method, which simultaneously measures the isotopic compositions and concentrations
Benjamin D. Roach +8 more
doaj +1 more source
The use of stable isotope analysis as a tool for characterization of carbon turnover (δ13C) in piglet's tissues by tracing its feeding system has drawn attention.
Amanda D. Assoni +4 more
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Incorporation of Labeled Methionine as a Tissue Tracer in Broiler Chickens
The objective of this study was to evaluate the process of L-methionine incorporation in the blood plasma, liver, breast muscle, and abdominal fat of 35- to 59-d-old broiler chickens using the carbon stable isotope (12C and 13C) technique for the ...
AC Stradiotti +7 more
doaj +1 more source
Timing carbon turnover (δ13C) in weaned piglet’s brain by IRMS
Isotope-ratio mass spectrometry (IRMS) is a potential tool that provides time-integrated estimate of assimilated and not just ingested nutrients. This feature turned possible its application to evaluate the effects of dietary nucleotides and glutamate on
MAYRA A.D. SALEH +5 more
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