Methane preconcentration in a microtrap using multiwalled carbon nanotubes as sorbents

Document Type

Article

Publication Date

9-1-2010

Abstract

The GC monitoring of green house gases is a challenging task because the concentration of organic species such as methane are relatively low (ppm to ppb) and their analysis requires some level of preconcentration. Since methane is highly volatile, it is not easily retained on conventional sorbents. In this paper we present multiwalled carbon nanotubes (MWNTs) as an effective sorbent for a microtrap designed for methane preconcentration. Its performance was compared to other commercially available carbon based sorbents, and it was found to be the most effective sorbent in terms of breakthrough volume and enthalpy of adsorption. © 2010 Elsevier B.V.

Identifier

77957008729 (Scopus)

Publication Title

Analytica Chimica Acta

External Full Text Location

https://doi.org/10.1016/j.aca.2010.01.037

e-ISSN

18734324

ISSN

00032670

First Page

50

Last Page

54

Issue

1

Volume

677

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