Erratum to: Metabolomics DOI: 10.1007/s11306-014-0770-7

This paper was originally published under the title ‘Serially coupling hydrophobic interaction and reversed-phase chromatography with simultaneous gradients provides greater coverage of the metabolome’. The word “hydrophobic” is incorrect. The title should read ‘Serially coupling hydrophilic interaction and reversed-phase chromatography with simultaneous gradients provides greater coverage of the metabolome’.