Collection of ionization efficiency values from the literature together with the unification of the values a up- and downloading options.

Please cite: Piia Liigand, Jaanus Liigand, Karl Kaupmees, Anneli Kruve, 30 Years of research on ESI/MS response: Trends, contradictions and applications, Analytica Chimica Acta, Volume 1152, 2021, 238117, ISSN 0003-2670, https://doi.org/10.1016/j.aca.2020.11.049.

Instructions for filling in data template:

sheet 1 - "LC_data"

Please fill in at least two identifiers and all fields for LC data. (concentration_mM - theoretical concentration of the compound in mM)

sheet 2 - "LC_program"

Please give information about the eluent program used in analysis. For used eluents please specify solvent, additives, additive concentration, pH, buffers etc. e.g. A: H2O, 0.1 mM HCOOH, pH 3.7 B: MeCN

sheet 3 - "Instrument"

Please fill in all fields about the instrument and integration.

model - e.g. Agilent 6460 triple quadrupole, linear ion trap hybrid Orbitrap Elite, Thermo Orbitrap QExactive etc. vendor - e.g. Bruker, Agilent, Thermo etc. mass_analyser - e.g. Q, QQQ, QTOF, orbitrap, ion trap etc. source - electrospray ionization source, e.g. ESI, HESI, nanoESI, Z-spray, JetStream etc.

program - which program was used for integration, e.g. XCalibur, MassLynx, MSDial etc. area_type - Which type of area is given in LC data (base peak or sum of all isotopes)

Any additional information can be written under "comments" section.