Matrix-assisted laser desorption/ionization tandem reflectron time-of-flight mass spectrometry of fullerenes

Marcela M. Cordero, Timothy J. Cornish, Robert J. Cotter

Research output: Contribution to journalArticle

Abstract

Atandem reflectron time-of-flight mass spectrometer developed in our laboratory provides a unique opportunity to investigate the collision-induced dissociation of fullerene ions formed by matrix-assisted laser desorption/ionization (MALDI). Specifically, this opportunity arises from the ability to utilize high energy collisional activation (normally available only on tandem sector instruments by using continuous ionization techniques) for ions formed by pulsed laser desorption, whereas most MALDI time-of-flight instruments record product ion mass spectra of ions formed by metastable or postsource decay. In this study we investigate the products of mass-selected and collisionally activated C 60 + and C 70 + ions by using different target gases over a range of target gas pressures. In general, heavier target gases produce more extensive fragmentation and improve the mass resolution of lower mass ionic products because a greater portion of these ions are formed by single collisions. Additionally, the tandem time-of-flight instrument utilizes a nonlinear (curved-field) reflectron in the second mass analyzer that enables high energy collision-induced dissociation spectra to be recorded without scanning or stepping the reflectron voltage.

Original languageEnglish (US)
Pages (from-to)590-597
Number of pages8
JournalJournal of the American Society for Mass Spectrometry
Volume7
Issue number6
DOIs
StatePublished - Jun 1996

Fingerprint

Fullerenes
Ionization
Mass spectrometry
Desorption
Mass Spectrometry
Lasers
Ions
Gases
Mass spectrometers
Pulsed lasers
Chemical activation
Scanning
Pressure
Electric potential

ASJC Scopus subject areas

  • Spectroscopy
  • Structural Biology
  • Engineering(all)

Cite this

Matrix-assisted laser desorption/ionization tandem reflectron time-of-flight mass spectrometry of fullerenes. / Cordero, Marcela M.; Cornish, Timothy J.; Cotter, Robert J.

In: Journal of the American Society for Mass Spectrometry, Vol. 7, No. 6, 06.1996, p. 590-597.

Research output: Contribution to journalArticle

@article{e3b6e7e856704ccabb5172fa01cf0678,
title = "Matrix-assisted laser desorption/ionization tandem reflectron time-of-flight mass spectrometry of fullerenes",
abstract = "Atandem reflectron time-of-flight mass spectrometer developed in our laboratory provides a unique opportunity to investigate the collision-induced dissociation of fullerene ions formed by matrix-assisted laser desorption/ionization (MALDI). Specifically, this opportunity arises from the ability to utilize high energy collisional activation (normally available only on tandem sector instruments by using continuous ionization techniques) for ions formed by pulsed laser desorption, whereas most MALDI time-of-flight instruments record product ion mass spectra of ions formed by metastable or postsource decay. In this study we investigate the products of mass-selected and collisionally activated C 60 + and C 70 + ions by using different target gases over a range of target gas pressures. In general, heavier target gases produce more extensive fragmentation and improve the mass resolution of lower mass ionic products because a greater portion of these ions are formed by single collisions. Additionally, the tandem time-of-flight instrument utilizes a nonlinear (curved-field) reflectron in the second mass analyzer that enables high energy collision-induced dissociation spectra to be recorded without scanning or stepping the reflectron voltage.",
author = "Cordero, {Marcela M.} and Cornish, {Timothy J.} and Cotter, {Robert J.}",
year = "1996",
month = "6",
doi = "10.1016/1044-0305(96)00058-X",
language = "English (US)",
volume = "7",
pages = "590--597",
journal = "Journal of the American Society for Mass Spectrometry",
issn = "1044-0305",
publisher = "Springer New York",
number = "6",

}

TY - JOUR

T1 - Matrix-assisted laser desorption/ionization tandem reflectron time-of-flight mass spectrometry of fullerenes

AU - Cordero, Marcela M.

AU - Cornish, Timothy J.

AU - Cotter, Robert J.

PY - 1996/6

Y1 - 1996/6

N2 - Atandem reflectron time-of-flight mass spectrometer developed in our laboratory provides a unique opportunity to investigate the collision-induced dissociation of fullerene ions formed by matrix-assisted laser desorption/ionization (MALDI). Specifically, this opportunity arises from the ability to utilize high energy collisional activation (normally available only on tandem sector instruments by using continuous ionization techniques) for ions formed by pulsed laser desorption, whereas most MALDI time-of-flight instruments record product ion mass spectra of ions formed by metastable or postsource decay. In this study we investigate the products of mass-selected and collisionally activated C 60 + and C 70 + ions by using different target gases over a range of target gas pressures. In general, heavier target gases produce more extensive fragmentation and improve the mass resolution of lower mass ionic products because a greater portion of these ions are formed by single collisions. Additionally, the tandem time-of-flight instrument utilizes a nonlinear (curved-field) reflectron in the second mass analyzer that enables high energy collision-induced dissociation spectra to be recorded without scanning or stepping the reflectron voltage.

AB - Atandem reflectron time-of-flight mass spectrometer developed in our laboratory provides a unique opportunity to investigate the collision-induced dissociation of fullerene ions formed by matrix-assisted laser desorption/ionization (MALDI). Specifically, this opportunity arises from the ability to utilize high energy collisional activation (normally available only on tandem sector instruments by using continuous ionization techniques) for ions formed by pulsed laser desorption, whereas most MALDI time-of-flight instruments record product ion mass spectra of ions formed by metastable or postsource decay. In this study we investigate the products of mass-selected and collisionally activated C 60 + and C 70 + ions by using different target gases over a range of target gas pressures. In general, heavier target gases produce more extensive fragmentation and improve the mass resolution of lower mass ionic products because a greater portion of these ions are formed by single collisions. Additionally, the tandem time-of-flight instrument utilizes a nonlinear (curved-field) reflectron in the second mass analyzer that enables high energy collision-induced dissociation spectra to be recorded without scanning or stepping the reflectron voltage.

UR - http://www.scopus.com/inward/record.url?scp=0029669922&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0029669922&partnerID=8YFLogxK

U2 - 10.1016/1044-0305(96)00058-X

DO - 10.1016/1044-0305(96)00058-X

M3 - Article

VL - 7

SP - 590

EP - 597

JO - Journal of the American Society for Mass Spectrometry

JF - Journal of the American Society for Mass Spectrometry

SN - 1044-0305

IS - 6

ER -