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Design and development of a pyrolysis probe for short path thermal desorption
Descriptive
TypeOfResource
Text
TitleInfo
(ID = T-1)
Title
Design and development of a pyrolysis probe for short path thermal desorption
Identifier
ETD_2610
Identifier
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.000053025
Language
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(type = code)
eng
Genre
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theses
Subject
(ID = SBJ-1);
(authority = RUETD)
Topic
Food Science
Subject
(ID = SBJ-2);
(authority = ETD-LCSH)
Topic
Pyrolysis
Subject
(ID = SBJ-3);
(authority = ETD-LCSH)
Topic
Gas chromatography
Subject
(ID = SBJ-4);
(authority = ETD-LCSH)
Topic
Mass spectrometry
Subject
(ID = SBJ-5);
(authority = ETD-LCSH)
Topic
Thermal desorption
Abstract
(type = abstract)
Pyrolysis is the process of heating a substance to high temperature in the absence of oxygen so it does not burn but rather the thermal energy causes dissociation of chemical bonds. It has been widely employed as an analytical tool where it is combined with gas chromatography (GC) and its ancillary techniques (Mass Spectrometry, Fourier transform infrared spectroscopy, etc.). Analytical pyrolysis has been applied in a variety of areas such as microbial classification, protein identification, food packaging material identification, and forensics. State of the art commercial pyrolysis instruments have intrinsic disadvantages that undermine widespread application. Most pyrolysis systems are dedicated attachments to a GC which preclude using the system for other injection techniques. Furthermore, commercial pyrolysis instruments are essentially probes inserted into the GC injector or are extensions to the GC injector. Pyrolysis releases high molecular weight, non-volatile residues into the GC injector which can foul the system and lead to sample to sample cross contamination problems. The objective of this research is to design and develop a pyrolysis probe attachment for Short Path Thermal Desorption which would remedy the disadvantages of current commercial systems. Specifically, the new pyrolysis probe should combine the features of Short Path Thermal Desorption, have a quick setup, not be prone to injector contamination, be easily moveable and transferable, accurate and precise. A prototype has been built in our laboratory and subjected to mechanical and engineering tests. In the first demonstration of the new pyrolysis probe, virgin high density polyethylene (HDPE) was analyzed by pyrolysis-direct thermal desorption (DTD)-GC-MS. A very strong peak of ethylene (primary pyrolysis product) was evolved in the pyrogram followed by a homologous series of oligomers up to C40 thereby validating the instrument. Pyrolysis studies on other model polymers such as polystyrene (PS), ethylene vinyl alcohol (EVOH), ethylene vinyl acetate (EVA), and polyethylene terephthalate (PET) were also proved successful in revealing their monomers, oligomers, important decomposition products, and additives. The pyrolysis chamber and sample tube was very clean after each run and no cross contamination was detected between injections, proving the superiority of this novel pyrolysis system over existing commercial instruments.
PhysicalDescription
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electronic resource
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xi, 104 p. : ill.
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application/pdf
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text/xml
Note
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M.S.
Note
Includes abstract
Note
(type = bibliography)
Includes bibliographical references
Note
(type = statement of responsibility)
by Hao Fan
Name
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Fan
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Hao
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1983-
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author
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Hao Fan
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THOMAS
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THOMAS HARTMAN
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HO
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CHI-TANG
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Advisory Committee
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CHI-TANG HO
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HENRYK
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Advisory Committee
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HENRYK DAUN
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Rutgers University
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degree grantor
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Graduate School - New Brunswick
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school
OriginInfo
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2010
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2010
Place
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xx
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TitleInfo
Title
Rutgers University Electronic Theses and Dissertations
Identifier
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ETD
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TitleInfo
Title
Graduate School - New Brunswick Electronic Theses and Dissertations
Identifier
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rucore19991600001
Location
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NjNbRU
Identifier
(type = doi)
doi:10.7282/T3QZ2B1M
Genre
(authority = ExL-Esploro)
ETD graduate
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Rights
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The author owns the copyright to this work.
Copyright
Status
Copyright protected
Availability
Status
Open
Reason
Permission or license
RightsHolder
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(type = personal)
Name
FamilyName
Fan
GivenName
Hao
Role
Copyright Holder
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Type
Permission or license
DateTime
2010-04-14 20:40:29
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Name
Hao Fan
Affiliation
Rutgers University. Graduate School - New Brunswick
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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ETD
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5427200
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