Subject: Re: FT-IR & Epoxy - HELP
From: Chad Nelson
Date: 16 Jan 1997 18:20:02 -0500
kd4wyn@emi.net wrote:
}
} Does FT-IR comparasion really give an accurate "fingerprint" of a material
} such as a two component epoxy such that the FT-IR results could be used as
} a stand alone quality verification of the material?
}
} Example:
} We identify a specific batch of coating that has the desired properties we
} want a manufacturer to reproduce from batch to batch. We have the initial
} batch "fingerprinted" by FT-IR and use that spectra as the "master
} fingerprint" to which all subsequent batches are examined by FT-IR and
} compared to the master. If the spectra is "reasonably identical", does
} that alone assure us that the coating is really the same as the master
} batch? Are there other lab tests that would give us a higher degree of
} confidence?
}
} Thank you very much!
}
} Michael Crapps
} Corporate Quality Assurance Manager
} S.G. Pinney & Associates, Inc.
} Port St. Lucie, FL
FT-IR can give you very reproducible information regarding the chemistry
of the batch (ie relative concentration of molcular species or covalent
bonds/functional groups) but will not tell you how well the coating is
bonded or what the structural properties of the material are.
--
Sincerely,
Chad Nelson
Advanced Fuel Research, Inc.
87 Church Street
East Hartford, CT 06108-3742
"The views expressed above are those of the author and do not
necessarily reflect the views of Advanced Fuel Research, Inc. or any
affiliates."
Subject: Electrospray research in Australia
From: Paul Slater
Date: 17 Jan 1997 08:12:24 -0500
Dear sir/madam,
My name is Paul Slater, and I am currently completing my Ph.D. in
novel applications of electrospray mass spectrometry. My main area of
interest is in the use of organic adducts to improve the quality of
salt contaminated spectra and to quantify the number of polar groups,
(for example, sulfonates), that are present. I have achieved this goal
with a wide range of complex polysulfonated compounds, mainly azo
dyes.
In October my partner and I will be moving to Australia for
approximately one year. During this period I hope to find work or
research in my field. I would be grateful if you could therefore
advise me on some contacts whom I can approach and arrange a possible
visit.
Thank you in advance for your time and help.
With very best wishes,
Paul Slater
EPSRC National Mass Spectrometry Service Centre,
Department of Chemistry,
University of Wales Swansea,
Singleton Park,
Swansea SA2 8PP.
U.K.
