Chemical, biological, and physical processes lead to distinctive “isotopic signatures” in
biological materials that allow tracing of the origins of organic substances. Isotopic variation …

Chemical taxonomy based upon the composition of lipids is widely applied to investigate
microbial communities and fatty acids have recently been employed to connect soil …

Stable isotopes are increasingly being used as tracers in environmental studies. One
application is to use isotopic ratios to quantitatively determine the proportional contribution …

Differential fractionation of stable isotopes of carbon during photosynthesis causes C4
plants and C3 plants to have distinct carbon-isotope signatures. In addition, marine C3 …

Stable isotope analysis is a well‐established tool for studying past human remains.
Applications have grown exponentially in the past 15 years, with studies focusing on living …

Extracting nutrients is of upmost importance to the survival of any individual or species. One
of the distinguishing characteristics of the order Primates is the vast range of nutritional …

We report measurements of seasonal variability in the C‐N stable isotope ratios of plants
collected across the habitat mosaic of San Francisco Bay, its marshes, and its tributary river …

A natural abundance hydrogen stable isotope technique was used to study seasonal
changes in source water utilization and water movement in the xylem of dimorphic root …

List of figures p. ix List of tables p. xii Preface p. xiii Part I The Role of Analytical Chemistry in
Archaeology p. 1 1 Archaeology and Analytical Chemistry p. 3 1.1 The history of analytical …

ABSTRACT Nitrogen stable isotope (15N, 14N) natural abundance has been much less
used than carbon isotopes (13C, 12C) in plant physiology and ecology. Analytical problems …