Results 21 to 30 of about 109,535 (265)
Study on the Analysis of Uranium-in Rat Hair by Secondary Ion Mass Spectrometry
Journal of Isotopes, 2021 Hair samples, as a non-invasive biological material, it is gradually gaining attention in the fields of nuclear forensics, environmental monitoring, occupational exposure detection, and medicine due to its certain accumulation effect on human trace ...
HU Ruixuan;SHEN Yan;LI Lili;HUANG Shenghui;ZHAO Lifei;ZHAO Yonggang
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A three-ratio scheme for the measurement of isotopic ratios of silicon
Journal of Research of the National Institute of Standards and Technology, 1993 This paper proposes a scheme of measurement sequences that has been used for the redetermination of the molar mass (atomic weight) of silicon at the Central Bureau for Nuclear Measurements (now Institute for Reference Materials and Measurements).
Ku, H. +3 more
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Agronomy, 2022 Drought is perhaps the most important abiotic stressor affecting plants. Grapevine (Vitis vinifera L.) is a drought-tolerant species, and this feature makes it a traditional crop in semi-arid climate areas.
A. Sergio Serrano +6 more
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Vietnam Journal of Science, Technology and Engineering, 2017 A refined analytical method has been developed for the determination of the isotope ratio of oxygenated compounds in essential oils, using high-resolution gas chromatographymass spectrometry (HRGC-MS), has been developed.
Thi Thao Nguyen, Masayoshi Sawamura
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Radiation Protection and EnvironmentParticulate matter (PM) in the air has significant implications for human health and the environment, particularly in urban areas with high concentrations. This study focuses on the isotopic (δ13C and δ15N), elemental (CNS) as well as the total carbon to
V. B. Yadav +2 more
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Antarctic Record, 1977 The oxygen isotope ratio determined from CO_2 equilibrated isotopically with the water sample provides the oxygen isotope activity ratio of the water sample.
Kikuo KATO
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Molecules, 2023 The grains of three barley varieties were milled and sieved to obtain respective milling fractions with a content of beta-glucans (b-G) from 1.4 to 10.7%. The enriched fraction obtained by the extraction and precipitation contained 24.7% of b-G.
Tom Levanič +7 more
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Frontiers in Microbiology, 2018 The nanoSIMS-based chemical microscopy has been introduced in biology over a decade ago. The spatial distribution of elements and isotopes analyzed by nanoSIMS can be used to reconstruct images of biological samples with a resolution down to tens of ...
Hryhoriy Stryhanyuk +5 more
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Combination of carbon isotope ratio with hydrogen isotope ratio determinations in sports drug testing [PDF]
Analytical and Bioanalytical Chemistry, 2013 Carbon isotope ratio (CIR) analysis has been routinely and successfully applied to doping control analysis for many years to uncover the misuse of endogenous steroids such as testosterone. Over the years, several challenges and limitations of this approach became apparent, e.g., the influence of inadequate chromatographic separation on CIR values or ...
Piper, T. +4 more
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Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation
FEBS Letters, EarlyView.Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe +3 more
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