Hadamard transform and "no-peak" enhancement in measurement of tandem Fourier transform mass spectra
β Scribed by McLafferty, Fred W.; Stauffer, Douglas B.; Loh, Stanton Y.; Williams, Evan R.
- Book ID
- 126787018
- Publisher
- American Chemical Society
- Year
- 1987
- Tongue
- English
- Weight
- 297 KB
- Volume
- 59
- Category
- Article
- ISSN
- 0003-2700
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Multidimensional approaches to tandem Fourier transform ion cyclotron resonance (FTICR) mass spectrometry/ mass spectrometry (MSIMS) have been developed in recent years for structural characterization of species in mixtures. One approach, using Hadamard S-matrix encoding of precursor ions followed b
## Abstract Ionization energies (IE) of [M + __z__H]^__z__+^ (__z__+) electrosprayβproduced polypeptides were determined by electron ionization in a Penning cell of 4.7 and 9.4 T Fourier transform mass spectrometers. For __z__ = 1+ and substance P, the found IE value of 11.0 Β± 0.4 eV is in agreemen