A Caltech Library Service

Direct Mass Spectrometric Analysis of Position Specific δ^(13)C in Organics

Piasecki, Alison and Eiler, John (2012) Direct Mass Spectrometric Analysis of Position Specific δ^(13)C in Organics. Mineralogical Magazine, 76 (6). p. 2230. ISSN 0026-461X.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


It is recognized that natural organic molecules can exhibit position-specific isotopic fractionations (i.e., differences in isotopic composition for a single element between non-equivalent molecular sites). For example, lipids can exhibit up to ~30 ‰ difference in ^(13)C/^(12)C between adjacent carbons as a result of fractionations arising during decarboxylation of pyruvate in lipid biosynthesis [1]. Little in detail is known about such isotope effects in natural products, but it seems possible that observations of isotopic ordering of carbon could distinguishing among the mechanisms and conditions of biosynthetic reactions. And, such position specific isotope effects may be inherited by alkanes produced from thermal degredation fatty acid chains, perhaps modified as functions of the conditions and mechanisms of thermal maturation.

Item Type:Article
Related URLs:
URLURL TypeDescription Table of Contents Website
Additional Information:© 2012 by the Mineralogical Society of Great Britain and Ireland. Open Access Article. Published online 19 November 2012.
Issue or Number:6
Record Number:CaltechAUTHORS:20130807-133506905
Persistent URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:39809
Deposited By: Tony Diaz
Deposited On:09 Aug 2013 18:26
Last Modified:03 Oct 2019 05:10

Repository Staff Only: item control page