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Titolo:
ENHANCED ACCUMULATED TRAPPING EFFICIENCY USING AN AUXILIARY TRAPPING ELECTRODE IN AN EXTERNAL SOURCE FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETER
Autore:
HOFSTADLER SA; WU QY; BRUCE JE; CHEN RD; SMITH RD;
Indirizzi:
BATTELLE MEM INST,PACIFIC NW LABS,DEPT CHEM SCI RICHLAND WA 99352 BATTELLE MEM INST,PACIFIC NW LABS,DEPT CHEM SCI RICHLAND WA 99352 BATTELLE MEM INST,PACIFIC NW LABS,ENVIRONM MOLEC SCI LAB RICHLAND WA 99352
Titolo Testata:
International journal of mass spectrometry and ion processes
fascicolo: 3, volume: 142, anno: 1995,
pagine: 143 - 150
SICI:
0168-1176(1995)142:3<143:EATEUA>2.0.ZU;2-H
Fonte:
ISI
Lingua:
ENG
Soggetto:
LASER-DESORPTION IONIZATION; HIGH MAGNETIC-FIELD; QUADRUPOLAR EXCITATION; LARGE MOLECULES; AXIALIZATION; BIOMOLECULES; PROTEINS;
Keywords:
ACCUMULATED TRAPPING; ASYMMETRIC ION ACCUMULATION; AUXILIARY ELECTRODE; EXTERNAL SOURCE; FOURIER TRANSFORM ION CYCLOTRON RESONANCE; ION TRAPPING; TRAPPED ION CELL;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
30
Recensione:
Indirizzi per estratti:
Citazione:
S.A. Hofstadler et al., "ENHANCED ACCUMULATED TRAPPING EFFICIENCY USING AN AUXILIARY TRAPPING ELECTRODE IN AN EXTERNAL SOURCE FOURIER-TRANSFORM ION-CYCLOTRON RESONANCE MASS-SPECTROMETER", International journal of mass spectrometry and ion processes, 142(3), 1995, pp. 143-150

Abstract

A scheme for the enhanced accumulation of ions injected into the trapped ion cell of a Fourier transform ion cyclotron resonance (FTICR) mass spectrometer from an external electrospray ionization source is described. This method utilizes an auxiliary electrode positioned outsidethe trapped ion cell which increases the effective collisional path length for ions traversing the trapped ion cell. A comparison made between pressure-assisted accumulated trapping in a symmetric trapping well, an asymmetric trapping well, and a symmetric trapping well with that for the addition of an auxiliary electrode indicates that trapping efficiency can be significantly improved when an auxiliary electrode trapping configuration is utilized.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/07/20 alle ore 20:55:49