Stable Isotope Ratios and Forensic Analysis of Microorganisms
نویسندگان
چکیده
منابع مشابه
Stable isotope ratios and forensic analysis of microorganisms.
In the aftermath of the anthrax letters of 2001, researchers have been exploring various analytical signatures for the purpose of characterizing the production environment of microorganisms. One such signature is stable isotope ratios, which in heterotrophs, are a function of nutrient and water sources. Here we discuss the use of stable isotope ratios in microbial forensics, using as a database...
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Architectural 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. Isotope ratio mass spectrometry (IRMS) has been investigated...
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Seeds of the castor plant Ricinus communis are of forensic interest because they are the source of the poison ricin. We tested whether stable isotope ratios of castor seeds and ricin preparations can be used as a forensic signature. We collected over 300 castor seed samples worldwide and measured the C, N, O, and H isotope ratios of the whole seeds and oil. We prepared ricin by three different ...
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Spatial and temporal variations in stable carbon isotope ratios (i.e., 813C) of primary producers are common but poorly understood features of isotopic characterizations of aquatic food webs. I investigated factors that control t13C of algae (concentration and 613C of inorganic carbon, algal fractionation, and growth rates) in riffle habitats across a gradient in stream size and productivity in...
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ژورنال
عنوان ژورنال: Applied and Environmental Microbiology
سال: 2007
ISSN: 0099-2240,1098-5336
DOI: 10.1128/aem.02906-06