Ultrahigh vacuum deposition of organic molecules by electrospray ionization.
Rev Sci Instrum
; 82(3): 033903, 2011 Mar.
Article
em En
| MEDLINE
| ID: mdl-21456759
ABSTRACT
An electrospray apparatus for deposition of organic molecules on surfaces in ultrahigh vacuum is presented. The kinetic energy at the impact and mass to charge ratio of deposited ions can be controlled by an electrostatic quadrupole deflector and an in-line quadrupole mass spectrometer. With an ion funnel in the first two vacuum stages a high ion transmission is achieved. Experiments on porphyrin cations and deoxyribonucleic acid deposited on a Au(111) surface demonstrate the capabilities of the instrument.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Rev Sci Instrum
Ano de publicação:
2011
Tipo de documento:
Article
País de afiliação:
Alemanha