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Stable Isotope Ratios: Hurricane Olivia
Journal of Atmospheric Chemistry, 2002The oxygen and hydrogen isotopic compositions of rains from HurricaneOlivia (1994) in the eastern Pacific were measured. The rains werecollected on 24 and 25 September during airplane flights conducted at anelevation of 3 km. Hurricane Olivia peaked in intensity to a category-4storm between the two dates.
James R. Lawrence +3 more
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Journal of Forensic Sciences, 2008
Abstract: There remains significant uncertainty in illicit marijuana cultivation. We analyzed the δ13C and δ15N of 508 domestic samples from known U.S.A. counties, 31 seized from a single location, 5 samples grown in Mexico and Colombia, and 10 northwest border seizures. For a subset, inflorescences and leaves were analyzed separately.
Jason B, West +2 more
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Abstract: There remains significant uncertainty in illicit marijuana cultivation. We analyzed the δ13C and δ15N of 508 domestic samples from known U.S.A. counties, 31 seized from a single location, 5 samples grown in Mexico and Colombia, and 10 northwest border seizures. For a subset, inflorescences and leaves were analyzed separately.
Jason B, West +2 more
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Stable isotope ratio analysis for authentication of lamb meat
Meat Science, 2003The effectiveness of the analysis of stable isotope ratios ((13)C/(12)C and (15)N/(14)N) in fractions of lamb meat, measured by isotope ratio mass spectrometry, was evaluated as a method of feeding and geographical origin authentication. Analyses were carried out on meat from 12 lamb types, produced in couples in six European countries (country of ...
Piasentier E +4 more
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Referencing strategies and techniques in stable isotope ratio analysis
Rapid Communications in Mass Spectrometry, 2001Abstract Stable isotope ratios are reported in the literature in terms of a deviation from an international standard (δ‐values). The referencing procedures, however, differ from instrument to instrument and are not consistent between measurement facilities.
Werner, R., Brand, W.
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Stable isotope analysis of white paints and likelihood ratios
Science & Justice, 2009Architectural paints are commonly found as trace evidence at scenes of crime. Currently the most widely used technique for the analysis of architectural paints is Fourier Transformed Infra-Red Spectroscopy (FTIR). There are, however, limitations to the forensic analysis of white paints, and the ability to discriminate between samples.
Farmer, Nicola +2 more
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Selenium Partitioning and Stable Isotope Ratios in Urban Topsoils
Soil Science Society of America Journal, 2011A combination of sequential extraction with stable isotope ratio measurements of Se might offer new insights into biogeochemical processes governing Se turnover in soils. Therefore, we determined the Se partitioning among three operationally defined sequential extracts (0.1 mol L −1 K
Schilling, Kathrin +2 more
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Stable Isotope Ratios as a Biomarker on Mars
Space Science Reviews, 2007As both Earth and Mars have had similar environmental conditions at least for some extended time early in their history (Jakosky and Phillips in Nature 412:237–244, 2001), the intriguing question arises whether life originated and evolved on Mars as it did on Earth (McKay and Stoker in Rev. Geophys. 27:189–214, 1989).
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Measurement of light stable isotope ratios by SIMS:
International Journal of Mass Spectrometry, 1998Abstract Mass bias occurring during analysis of the light stable isotopes of oxygen, carbon, and sulfur in geological materials by secondary ionization mass spectrometry has been investigated. The effects of instrumental parameters (primary ion beam, secondary ion energy, and polarity) were evaluated by measuring sulfur isotope ratios in conductive ...
Lee R Riciputi +2 more
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Variations of Stable Isotope Ratios in Nature
1973Information about nonterrestrial isotopic abundances can be obtained from studies of meteoritic, lunar, or planetary dust materials from both space probes and from ground-based astronomical observations. From these different sources of information it has been established that many elements have cosmic isotopic compositions which are very different from
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Recent advances in stable isotope ratio analysis of common explosives
Chinese Journal of Chromatography, 2021The ratio of stable isotopes of the elements in explosives differs depending on the raw materials obtained from different geographical sources or the production processes adopted. Hence, this ratio can be used as an important index for the comparison and trace of explosives.
Can, Hu +5 more
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