of carbon/nitrogen of Mycenas and plants at field sites can reveal the mushroomA[sup.
Stable isotope analysis is a tool used frequently to investigate patterns of productivity and nutrient supply based on predictable degrees of isotopic fractionation
during metabolic transactions (Peterson & Fry 1987).
j] represents the intrinsic isotopic fractionation
at the microbial process level.
The fingerprint is the result of a natural phenomenon called isotopic fractionation
, in which different isotopes of mercury react to form new compounds at slightly different rates.
This isotopic fractionation
can be described by a fractionation factor, which is characteristic for the process:
No isotopic fractionation
occurs when the glass is made (Henderson et al.
describes the process by which the ratio of stable carbon isotopes ([C.
Similar to other techniques that are currently in use to analyse Li isotopic composition, quantitative chemical separation of Li prior to the measurement on ICP-MS is necessary to avoid the matrix-induced isotopic fractionation
and the results have to be externally corrected for mass bias and instrumental fractionation.
Durand, 1984), or changes in isotopic fractionation
of dissolved inorganic nitrogen during uptake (see below), may account for the lower [[delta].
Barnes is identifying sources of chlorine in two very different subduction zones, and has recognized important isotopic fractionation
processes between hydrochloric acid solutions and vapor, which have implications for the fundamental dissociation of hydrochlorine in aqueous solutions.
Thus, the proposed project will use a synergy of experimental, analytical and computational techniques to test whether the isotopic fractionation
of oxygen in phosphate can be used as an isotopic tracer in acidic systems.
Carbon isotopic fractionation
in macroalgae from Cadiz Bay (southern Spain): comparison with other bio-geographic regions.