Relative ion intensities of maltooligosaccharide ethers in electrospray ionization ion trap mass spectrometry: A quantitative evaluation

- Quantification of O-Me-d3 beside O-Me oligosaccharides was studied by ESI-IT-MS.
- Relative intensity of sodium adducts was ca. 1.0 but decreased with DP.
- No DP effect was observed in nano-ESI-MS or for ABA-tagged analytes in negative mode.