| HMOs | human milk oligosaccharides |
| HPLC | high performance liquid chromatography |
| MS | mass spectrometer |
| Glc | glucose |
| Gal | galactose |
| GlcNAc | N-acetyl-glucosamine |
| Fuc | fucose |
| Neu5Ac | sialic acid |
| LacNAc | N-acetyl-lactosamine |
| FUT | fucosyltransferase |
| ESI | electrospray ionization |
| QC | quality control |
| SPE | solid phase extraction |
| GCC | graphitized carbon cartridges |
| ACN | acetonitrile |
| TFA | trifluoroacetic acid |
| FA | formic acid |
| Se+ | Secretor positive phenotype |
| Se- | Secretor negative phenotype |
| Le+ | Lewis positive phenotype |
| Le- | Lewis negative phenotype |
| 2′-FL | 2′-Fucosyllactose |
| 3′-FL | 3′-Fucosyllactose |
| LDFT | Lactodifucotetraose |
| LNT | Lacto-N-tetraose |
| LNnT | Lacto-N-neotetraose |
| LNFP-I | Lacto-N-fucopentaose-I |
| LNFP-II | Lacto-N-fucopentaose-II |
| LNFP-III | Lacto-N-fucopentaose-III |
| LNFP-IV | Lacto-N-fucopentaose-IV |
| LNDFH-I | Lacto-N-difucohexaose-I |
| LNDFH-II | Lacto-N-difucohexaose-II |
| LNH | Lacto-N-hexaose |
| LNnH | Lacto-N-neohexaose |
| MFLNH-I | Monofucosyllacto-N-hexaose-I |
| MFLNH-III | Monofucosyllacto-N-hexaose-III |
| MFpLNH-IV | Monofucosyl-para-lacto-N-hexaose-IV |
| IFLNH-I | Isomer-fucosyl-lacto-N-hexaose-I |
| IFLNH-III | Isomer-fucosyl-lacto-N-hexaose-III |
| DFLNH-a | Difucosyllacto-N-hexaose-a |
| DFLNH-b | Difucosyllacto-N-hexaose-b |
| DFLNH-c | Difucosyllacto-N-hexaose-c |
| DFpLNH-I | Difucosyl-para-lacto-N-hexaose |
| DFpLNH-II | Difucosyl-para-lacto-N-hexaose |
| TFLNH-I | Trifucosyllacto-N-hexaose |
| TFLNH-II | Trifucosyllacto-N-hexaose |
| DFLNO-I | Difucosyllacto-N-octaose |