%0 Guideline %T Guidelines for LC-MS identifications of flavoring substances in nature, made by the Working Group on Methods of Analysis of the International Organization of the Flavor Industry (IOFI). %A %J Mol Nutr Food Res %V 54 %N 2 %D Feb 2010 %M 20024936 %F 6.575 %R 10.1002/mnfr.200900501 %X These guidelines are intended to assist authors and reviewers of publications concerning the validity of identifications of flavouring substances in nature using LC-MS. They address the choice of the transition between precursor and product ions (with examples using the "Identification Point" concept), the tolerances for ion-abundance ratios, and the importance of performing blank experiments.