Prev. Article Next Article Table of Contents

Article

Identification of Glue Vapors Using Electron Impact and Chemical Ionization Modes in GC–MS

Your current credentials do not allow retrieval of the full text.

Purchase the full-text

PDF/HTML,
figures/images,
references and tables,
(where available)

Jeremy Richer , John Spencer and Michael Baird

Department of Chemistry, Wheeling Jesuit University, Wheeling, WV 26003

J. Chem. Educ., 2006, 83 (8), p 1196

DOI: 10.1021/ed083p1196

Publication Date (Web): August 1, 2006

Section:

History, Education, and Documentation

Abstract

The analysis of the vapors from six commercial glues provided an interesting and challenging lab assignment for students in an instrumental analysis laboratory course. Students used both electron impact (EI) and chemical ionization (CI) modes of operation in GC–MS to identify the volatile components in their assigned glue. Chemical ionization using methane as the reagent gas provided a complementary analysis to the more common EI mode of operation. In the softer CI mode, there is a higher probability of observing the molecular ion. Students were required to explain the observation of specific mass fragments observed from both EI and CI operations in terms of their reactions in the ion source of the mass spectrometer. This interpretation of mass spectra provided the students an educational exercise for understanding the ionization processes that occur in mass spectroscopy.

Keywords (Audience):

Upper-Division Undergraduate

Keywords (Domain):

Analytical Chemistry

Keywords (Pedagogy):

Hands-On Learning / Manipulatives

Keywords (Subject):

Consumer Chemistry

View: Hi-Res PDF | PDF w/ Links

Citing Articles

View all 1 citing articles

Citation data is made available by participants in CrossRef's Cited-by Linking service. For a more comprehensive list of citations to this article, users are encouraged to perform a search in SciFinder.

This article has been cited by 1 ACS Journal articles (1 most recent appear below).

GC–MS Quantitation and Identification of Bisphenol-A Isolated from Water
Ralph N. Mead and Pamela J. Seaton
Journal of Chemical Education2011 88 (8), 1130-1132
- GC–MS Quantitation and Identification of Bisphenol-A Isolated from Water
  Ralph N. Mead and Pamela J. Seaton
  Journal of Chemical Education2011 88 (8), 1130-1132
  Isolation and identification of organic compounds is a necessary skill chemistry students must be able to do with proficiency. In this upper-level undergraduate laboratory, students isolate bisphenol-A (BPA; 4-4′-isopropylidenediphenol) from water using ...
  Abstract | Full Text HTML | Hi-Res PDF | PDF w/ Links