Results 11 to 20 of about 78,627 (266)
State-of-the-Art Analytical Approaches for Illicit Drug Profiling in Forensic Investigations
Molecules, 2022 In forensic chemistry, when investigating seized illicit drugs, the profiling or chemical fingerprinting of drugs is considered fundamental. This involves the identification, quantitation and categorization of drug samples into groups, providing ...
Reem Ahmed +2 more
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Research Progress on Stable Isotope Ratio Mass Spectrometry in Baijiu [PDF]
Shipin KexueBaijiu has a history of over 2 000 years. It is one of the world’s six major distilled spirits and is the national liquor of China. China has a vast territory, and regional differences in aroma types and brewing methods contribute to the wide diversity ...
XIE Yuxi, ZHAO Yaqi, HONG Yuhan, ZHAO Xuan, LEI Yi
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Expanded uncertainty modeling of the uranium isotope dilution standards
Journal of Analytical Science and Technology, 2021 In this paper, a statistical uranium isotope dilution mass spectrometry approach is presented to simulate the wide range of spike-sample mixed ratios of 235U/238U, in terms of their related expanded uncertainties and uncertainty budget indexes. To obtain
Altug Hasozbek
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Calcium isotope analysis by mass spectrometry [PDF]
Mass Spectrometry Reviews, 2009 AbstractThe variations in the isotopic composition of calcium caused by fractionation in heterogeneous systems and by nuclear reactions can provide insight into numerous biological, geological, and cosmic processes, and therefore isotopic analysis finds a wide spectrum of applications in cosmo‐ and geochemistry, paleoclimatic, nutritional, and ...
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Scientific Data, 2023 Metabolic stable isotope labeling with heavy water followed by liquid chromatography coupled with mass spectrometry (LC-MS) is a powerful tool for in vivo protein turnover studies.
Henock M. Deberneh +8 more
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Beryl Reference Materials for In Situ Oxygen Isotope Determination
Crystals, 2021 The mineral beryl (Be3Al2(SiO3)6) has the most abundant phase with industrial value for extracting a critical metal—beryllium. Due to multi-stage, fluid-induced growth, individual beryl grains may yield complex geochemical records, revealing variations ...
Xiaoxiao Ling +12 more
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Rapid and Accurate Characterization of Enriched Uranium Materials by Inductively Coupled Plasma Mass Spectrometry [PDF]
Zhipu Xuebao, 2023 The characteristics of enriched uranium materials are very important for nuclear fuel cycle and nuclear forensic analysis. Among all those fingerprints, the uranium isotope ratios and the uranium age are considered to be of major parameters for tracing ...
WANG Wei;XU Jiang;XI Rui-yang;WANG Ya-long;GUO Si-qi;FANG Sui;LI Zhi-ming;LIN Jian-feng;ZHANG Hai-tao;ZHANG Xiao-lin;WANG Chun-jie;HE Ya-jiao
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A New Method for Silicon Triple Isotope Analysis With Application to Siliceous Sponge Spicules
Geochemistry, Geophysics, Geosystems, 2023 Multiple isotope ratios of elements disclose information on the fractionation mechanism that cannot be obtained from a single isotope ratio alone.
Andreas Pack +3 more
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Triple Oxygen Isotope Measurements by Multi-Collector Secondary Ion Mass Spectrometry
Frontiers in Earth Science, 2021 Secondary ion mass spectrometry (SIMS) is a powerful technique for in situ triple oxygen isotope measurements that has been used for more than 30 years. Since pioneering works performed on small-radius ion microprobes in the mid-80s, tremendous progress ...
Nordine Bouden +9 more
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Mass spectrometry and natural variations of iron isotopes [PDF]
Mass Spectrometry Reviews, 2006 AbstractAn Erratum has been published for this article in Mass Spectrometry Reviews 25: 831–832, 2006.Although the processes that govern iron isotope variations in nature are just beginning to be understood, multiple studies attest of the virtue of this system to solve important problems in geosciences and biology.
Nicolas, Dauphas, Olivier, Rouxel
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