A retirement project created
and maintained by
Tom O'Haver ,
Professor Emeritus, Department of Chemistry
and Biochemistry
Have a question or suggestion? E-mail me: toh@umd.edu.
No cost, no ads, no
sign-in/registration. Completely free since 1993.
This essay is available as a
566-page printable document written
in Microsoft Word and saved in
Word and PDF
formats. Readability index
Check out the
feedback from users. Not to brag, but it’s been
called helpful 15 times, excellent 9
times, clear/clarity 9 times, wonderful 8
times, great 8
times, useful 7
times, valuable 5
times, the best 4 times, extensive 3 times, incredible
3 times,
fantastic 3 times, amazing 3 times, and thankful,
impressive,
brilliant,
enormous, tremendous, practical,
and concise, 2 times each. (OK, I bragged).
| Peak Finding and Measurement
|
Interactive Fourier Filter |
| Interactive Smoothing,
Derivative, and Signal Analysis |
Peak Fitter function |
| Interactive
Power Spectrum Demo |
Interactive Peak Fitter |


Acknowledgements
Thanks to my graduate
students, many of whom worked with the techniques
described within, to M.
Farooq Wahab for his many contributions and for many
fruitful discussions, to Baldassarre Cesarano for his close
reading and typographical correction of this text, to Dr.
Raphael Attie of NASA/Goddard Space Flight Center for
corrections, to Diederick C. Niehorster of The University of
Hong Kong for code contributions, to Yuri Kalambet of
Ampersand Ltd. for
mathematical insights, and to the many email
correspondents who have made suggestions, asked questions,
caught errors, and have shown me new types of data and new
applications that have broadened the scope of this work.
My
science and math presentations for the Rockville Science
Center, Rockville, Maryland

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in the market".
"I am so thankful for
your website...It has helped me
significantly...."
" ... very useful for
teaching in an Instrumentation course for M.Sc postgraduates
in analytical chemistry.
"[Y]our web site has such excellent content...."
"I tried the demo version of SPECTRUM and I think is a very useful tool for the introduction of signal processing to analytical chemistry students."
