Carbon nanotube electron ionization source for portable mass spectrometry

Theresa Evans-Nguyen; Charles B. Parker; Christina Hammock; Andrew H. Monica; Elena Adams; Luann Becker; Jeffrey T. Glass; Robert J. Cotter

doi:10.1021/ac200643m

Carbon nanotube electron ionization source for portable mass spectrometry

Theresa Evans-Nguyen, Charles B. Parker, Christina Hammock, Andrew H. Monica, Elena Adams, Luann Becker, Jeffrey T. Glass, Robert J. Cotter

School of Medicine

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

Cold cathode carbon nanotubes (CNTs) are used in a low-voltage quadrupole ion trap mass spectrometer and shown to be a viable low-power alternative to filament sources for portable mass spectrometry instrumentation. No heating is necessary, and the power consumption depends only on the switching characteristics of the electronics. The CNT electron sources are mounted directly in the ring electrode, and their performance is compared directly with a filament source also mounted in the ring electron. Up to a 5 × 10 ^-4 Torr CO ₂ environment, reflecting conditions expected during operation in a Mars atmosphere, the CNT emitters may provide up to 1 μA of current over more than 200 h.

Original language	English (US)
Pages (from-to)	6527-6531
Number of pages	5
Journal	Analytical chemistry
Volume	83
Issue number	17
DOIs	https://doi.org/10.1021/ac200643m
State	Published - Sep 1 2011

ASJC Scopus subject areas

Analytical Chemistry

Access to Document

10.1021/ac200643m

Cite this

@article{158bdc57eb69471b9900e18f391ae8cc,

title = "Carbon nanotube electron ionization source for portable mass spectrometry",

abstract = "Cold cathode carbon nanotubes (CNTs) are used in a low-voltage quadrupole ion trap mass spectrometer and shown to be a viable low-power alternative to filament sources for portable mass spectrometry instrumentation. No heating is necessary, and the power consumption depends only on the switching characteristics of the electronics. The CNT electron sources are mounted directly in the ring electrode, and their performance is compared directly with a filament source also mounted in the ring electron. Up to a 5 × 10 -4 Torr CO 2 environment, reflecting conditions expected during operation in a Mars atmosphere, the CNT emitters may provide up to 1 μA of current over more than 200 h.",

author = "Theresa Evans-Nguyen and Parker, {Charles B.} and Christina Hammock and Monica, {Andrew H.} and Elena Adams and Luann Becker and Glass, {Jeffrey T.} and Cotter, {Robert J.}",

year = "2011",

month = sep,

day = "1",

doi = "10.1021/ac200643m",

language = "English (US)",

volume = "83",

pages = "6527--6531",

journal = "Industrial And Engineering Chemistry Analytical Edition",

issn = "0003-2700",

publisher = "American Chemical Society",

number = "17",

}

TY - JOUR

T1 - Carbon nanotube electron ionization source for portable mass spectrometry

AU - Evans-Nguyen, Theresa

AU - Parker, Charles B.

AU - Hammock, Christina

AU - Monica, Andrew H.

AU - Adams, Elena

AU - Becker, Luann

AU - Glass, Jeffrey T.

AU - Cotter, Robert J.

PY - 2011/9/1

Y1 - 2011/9/1

N2 - Cold cathode carbon nanotubes (CNTs) are used in a low-voltage quadrupole ion trap mass spectrometer and shown to be a viable low-power alternative to filament sources for portable mass spectrometry instrumentation. No heating is necessary, and the power consumption depends only on the switching characteristics of the electronics. The CNT electron sources are mounted directly in the ring electrode, and their performance is compared directly with a filament source also mounted in the ring electron. Up to a 5 × 10 -4 Torr CO 2 environment, reflecting conditions expected during operation in a Mars atmosphere, the CNT emitters may provide up to 1 μA of current over more than 200 h.

AB - Cold cathode carbon nanotubes (CNTs) are used in a low-voltage quadrupole ion trap mass spectrometer and shown to be a viable low-power alternative to filament sources for portable mass spectrometry instrumentation. No heating is necessary, and the power consumption depends only on the switching characteristics of the electronics. The CNT electron sources are mounted directly in the ring electrode, and their performance is compared directly with a filament source also mounted in the ring electron. Up to a 5 × 10 -4 Torr CO 2 environment, reflecting conditions expected during operation in a Mars atmosphere, the CNT emitters may provide up to 1 μA of current over more than 200 h.

UR - http://www.scopus.com/inward/record.url?scp=80052341392&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052341392&partnerID=8YFLogxK

U2 - 10.1021/ac200643m

DO - 10.1021/ac200643m

M3 - Article

C2 - 21718010

AN - SCOPUS:80052341392

VL - 83

SP - 6527

EP - 6531

JO - Industrial And Engineering Chemistry Analytical Edition

JF - Industrial And Engineering Chemistry Analytical Edition

SN - 0003-2700

IS - 17

ER -

Carbon nanotube electron ionization source for portable mass spectrometry

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this