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- W2156862757 abstract "A series of quaternary ammonium salts was analysed by the ionspray technique under different conditions in order to study the influence of some important factors on the ionization efficiency, The factors taken into account were droplet charging, sample ion, counter ion, solovent composition, and concentration. Measurement of the spray current leaving the nebulizer has shown that the spray current increases linearly with sample concentration up to at least 50 pmol/μL. The measured spray current is approximately 30% of the calcualated current corresponding to a given concentration of quaternary ammonium ions in solution leaving the nebulizer at a given flow rate. The results obtained show that tetraakylammonium salt give the best sensitivitly with no influence of sample-ion shape or counter ion. The dynamic range for full-scan mass spectra of the compounds studied appears to the linear for concentrations from 0.1 pmol/μL (10−7M) up to 10 pmol/μL (10−5M)." @default.
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- W2156862757 date "1991-06-01" @default.
- W2156862757 modified "2023-09-27" @default.
- W2156862757 title "Factors affecting the ionization efficiency of quaternary ammonium compounds in electrospray/ionspray mass spectrometry" @default.
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- W2156862757 doi "https://doi.org/10.1002/rcm.1290050605" @default.
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