Results 1 to 10 of about 78,627 (266)

Isotope Mass Spectrometry in the Solar System Exploration. [PDF]

Mass Spectrom (Tokyo), 2018
Isotope analyses using mass spectrometers have been frequently utilized in the laboratories for the earth planetary science and other scientific and industrial fields. In order to conduct in-situ measurements of compositions and isotope ratios around planets and moons, mass spectrometers onboard spacecraft have also been developed.
Yokota S.
europepmc   +4 more sources

The Dyadic Radionuclide System 60Fe / 53Mn to Distinguish Interstellar from Interplanetary 60Fe [PDF]

EPJ Web of Conferences, 2022
The discovery of live 60Fe in a deep-sea crust with proposed interstellar origin followed by evidence for elevated interplanetary 3He in the same crust raised the question on how to unambiguously identify the true production site of the identified 60Fe ...
Koll Dominik, Faestermann Thomas, Korschinek Gunther, Leya Ingo, Merchel Silke, Wallner Anton   +5 more
doaj   +1 more source

Synthesis and Characterization of Stable Isotope Deuterium-Labelled Higenamine

Journal of Isotopes, 2021
Stable isotope labelled internal standards combined with isotope dilution mass spectrometry can offer an analytical method with strong anti-interference capability, good accuracy and precision for the detection of higenamine.
HAN Shilei;XU Yin;CHEN Juling;YANG Lifeng;ZHANG Lei
doaj   +1 more source

Authentication of vegetable oils using isotope mass spectrometry

Пищевые системы, 2023
Vegetable oils play an important role in the  human diet. Both the  physiological value of the  product and its cost largely  depend on the  type of processed raw materials. In this  regard, the  establishment of the  type of vegetable raw materials used
A. L. Panasyuk, D. A. Sviridov, A. A. Shilkin   +2 more
doaj   +1 more source

Energy expenditure and weight-related behaviors in youth with Down syndrome: a protocol

Frontiers in Pediatrics, 2023
BackgroundThe consequences of obesity are ominous, yet healthcare professionals are not adequately preventing or treating obesity in youth with Down syndrome (DS).
Michele Polfuss, Michele Polfuss, Linda G. Bandini, Michele N. Ravelli, Zijian Huang, Andrea Moosreiner, Dale A. Schoeller, Chiang-Ching Huang, Dan Ding, Cristen Berry, Emma Marston, Azeem Hussain, Timothy C. Shriver, Kathleen J. Sawin, Kathleen J. Sawin   +14 more
doaj   +1 more source

Isotope ratio mass spectrometry application for environmental investigations [PDF]

E3S Web of Conferences, 2019
Stable isotope ratio mass spectrometry (IRMS) is a useful technique with a broad range of applications. Stable isotopes are important indicators of environmental changes (including climate), and can be used to explain the functioning of biogeochemical ...
Simonova Galina, Kalashnikova Daria
doaj   +1 more source

Long-lived radionuclides in ferromanganese crusts [PDF]

EPJ Web of Conferences
A large variety of long-lived radionuclides are present in ferromanganese crusts and can be used for the reconstruction of Earth's climate or the discovery of astrophysical events in Earth's past.
Koll Dominik, Fichter Sebastian, Lachner Johannes, Rugel Georg, Wallner Anton   +4 more
doaj   +1 more source

Precise Measurement of Tellurium Isotope Ratios in Terrestrial Standards Using a Multiple Collector Inductively Coupled Plasma Mass Spectrometry

Molecules, 2020
Precise tellurium (Te) isotope ratio measurement using mass spectrometry is a challenging task for many decades. In this paper, Te isotope ratio measurements using multi-collector inductively coupled plasma mass spectrometry (MC–ICP–MS) in terrestrial Te
Rajamanickam Murugan, Tatsuo Aono, Sarata Kumar Sahoo   +2 more
doaj   +1 more source

GC-C-IRMS analysis of FAMEs as a tool to ascertain the diet of Iberian pigs used for the production of pork products with high added value

Grasas y Aceites, 2013
Taste, quality and perceived health benefits result in a high demand for both green and mature pork products derived from the Iberian bred swine.
C. Recio, Q. Martín, C. Raposo
doaj   +1 more source

Progress of Analytical Techniques for Stable Iron Isotopes

Yankuang ceshi, 2020
BACKGROUND Iron is the most abundant element on earth with variable valences. It is widely distributed in various minerals, rocks, fluids and organisms, and is involved in diagenesis, mineralization, hydrothermal activities and life activities. The study
QIN Yan, XU Yan-ming, HOU Ke-jun, LI Yan-he, CHEN Lei   +4 more
doaj   +1 more source