title: Comment on the uncertainties in isotope patterns of molecules.
abstract: Here we outline several misconceptions and caveats in the uncertainty evaluation of isotope patterns of molecules, most notably the failure of the traditional first-order error propagation models in certain situations. We also demonstrate that many of the questions regarding the uncertainty evaluation of molecular isotope patterns have direct analytical solutions that do not require elaborate computational approaches.
authors.affiliation: Institute for National Measurement Standards, National Research Council Canada, Ottawa, ON, Canada. juris.meija@nrc.ca
authors.forename: Juris
authors.initials: J
authors.lastname: Meija
authors.forename: Zoltán
authors.initials: Z
authors.lastname: Mester