Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Thermal energy distribution observed in electrospray ionization
Autore:
Drahos, L; Heeren, RMA; Collette, C; De Pauw, E; Vekey, K;
Indirizzi:
Hungarian Acad Sci, Inst Chem, H-1025 Budapest, Hungary Hungarian Acad Sci Budapest Hungary H-1025 hem, H-1025 Budapest, Hungary FOM, Inst Atom & Mol Phys, NL-1098 SJ Amsterdam, Netherlands FOM Amsterdam Netherlands NL-1098 SJ , NL-1098 SJ Amsterdam, Netherlands Univ Liege, Inst Chem, Gen & Phys Chem Dept, Mass Spectrometry Lab, B-4000Liege, Belgium Univ Liege Liege Belgium B-4000 s Spectrometry Lab, B-4000Liege, Belgium
Titolo Testata:
JOURNAL OF MASS SPECTROMETRY
fascicolo: 12, volume: 34, anno: 1999,
pagine: 1373 - 1379
SICI:
1076-5174(199912)34:12<1373:TEDOIE>2.0.ZU;2-T
Fonte:
ISI
Lingua:
ENG
Soggetto:
RESONANCE MASS-SPECTROMETRY; THERMOCHEMICAL DETERMINATIONS; KINETIC METHOD; IONS;
Keywords:
internal energy distribution; electrospray ionization; RRKM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Vekey, K Hungarian Acad Sci, Inst Chem, Pusztaszeri Ut 59-67, H-1025 Budapest, Hungary Hungarian Acad Sci Pusztaszeri Ut 59-67 Budapest Hungary H-1025
Citazione:
L. Drahos et al., "Thermal energy distribution observed in electrospray ionization", J MASS SPEC, 34(12), 1999, pp. 1373-1379

Abstract

A new method was developed which fits a thermal internal energy distribution to ions formed by electrospray ionization, The molecular ion survival yield was measured and determined by RRKM calculations as a function of temperature. The ('characteristic') temperature was determined when the calculated and measured molecular ion survival yields were equal. The 'characteristic' temperatures were very similar (average RSD errors were 8%) for a set of analogous compounds (benzylpyridine salts), and the resulting thermal internal energy distributions were close to those determined by De Pauw's method, The validity of the method was also checked performing blackbody infrared radiation and on-resonance excitation experiments on a Fourier transformion cyclotron resonance instrument with benzylpyridine salts and leucine enkephalin, The results strongly suggest that internal energy distributions in electrospray ionization are very close to thermal distributions. It was found that the characteristic temperature increases linearly with the cone voltage. It is suggested that the characteristic temperature can be used asa quantitative measure to control and standardize conditions in electrospray ionization, Copyright (C) 1999 John Wiley & Sons, Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 05/07/20 alle ore 07:12:30