User statements on the new Spectragryph optical spectroscopy software,
as filled into an online form.
Further down, please find some former testimonials
on Spekwin32, which is the
forerunner of SpectraGryph, and was developed
by me from 2000 - 2016:
testimonials, given from 2013 - 2016 :
Menges I find to be an extraordinary software developer and I currently
utilize and love his "Spekwin32 Software for Optical Spectroscopy".
This software has been a mainstay of my business model. His software
is a integral part of my testing especially in the area of gemstone
spectroscopy. He has provided a level of support for his application
that is second to none. He is without a doubt a top-notch and exceptional
software engineer and developer. I cannot think of a more deserving
individual to give a recommendation to."
AJP, RGA, Registered Gemologist & Appraiser at Bonnie Betz Gems
& Jewelry, LLC
have used SpekWin32 by Dr. Friedrich Menges for many years and found
it's as very efficient and "light" solution for solving
many everyday problems: fast screening of experimental results, importing
results to Excel or Statistical programs; Origin or Statistica, fast
spectra normalization and background correction... all that in a few
clicks and on your desktop at home or office, no need for expensive
software, you could use it for FTIR, UV-VIS and much more. Really
recommend for efficient work and to reduce load on your instrument
control Computer... After few years of silence, new version arrived:
many new options still to discover!"
Gemologist at Assay Office of Latvia
is a gifted and self-motivated engineer; that, coupled with his authentic
personality, makes it a pleasure to work with him.
He curates Spekwin32, a free program (for personal use) which many
of my customers use for advanced spectral analysis. The first time
I worked with him, I had asked him for some support and made a casual
request for some useful enhancements to the program. Friedrich was
a fountain of knowledge; he solved my support issue and kindly agreed
to make the software changes to benefit my customer base. Friedrich
implemented each of these modifications so quickly that I was shocked
by the short timeline! I am used to software engineers taking their
sweet time, especially when they are not given a deadline or financial
incentive. He even followed up with me multiple times to check in
on the status of my customers and to obtain feedback on the modifications.
Since then, he has added a Raman shift calculator among other improvements
to the software which I have shown interest in. Friedrich has a persistent
mind and follows through with what he commits to. I look forward to
continuing to work with him in the future."
Applications Scientist and Technical Sales at StellarNet, Inc.
have been using Spekwin 32 for many years and have been very impressed
with the software, I only view Infrared spectra of used oils and carry
out a spectra subtraction from time to time but the software can do
so much more and it is very easy to use. In the early days I came
across some issues with Biorad vs. Perkin Elmer SPC formats and these
were resolved very quickly and professionally by Friedrich. Spekwin32
is inexpensive yet its a very good product that is backed by excellent
Alistair Geach, Operations Manager at Wearcheck Canada Inc
have used Spekwin32 for many years and recommend it to our students.
It has a number of features not readily available in other packages
such as a nice interpolation routine to generate equally spaced data
that allows the conversion from wavenumbers to wavelengths. This has
been very useful for student presentations. I have only made use of
a small subset of all the possible features. I have always found Dr
Menges quick to respond to queries and to provide helpful suggestions"
Robert Lancashire, professor at University of the West Indies at
I was both the chairman of the OPCW validation group and head of the
OPCW laboratory we used Spekwin32 for display and evaluation of IR
data. The program was very useful and was able to be used on a wide
variety of data formats. I strongly recommend the program."
Gary Mallard, Sole Proprietor at Teal Consulting
= Organization for the Prohibition of Chemical Weapons. It is the
implementing body of the Chemical Weapons Convention (CWC). It is
an independent autonomous organization with a working relationship
to the United Nations (UN). OPCW also distributes the software to
it's member states.)
Friedrich Menges is a very skilled software developer. I have been
working with Spekwin32 for over 2 years now and it proves to be efficient,
userfriendly and very flexible software package.
I have been working with microscopic imaging and spectroscopic software
packages and its developers for many years and recognize his unique
skills in understanding the user. I also appreciate his clear communication,and
the programmers skills combined with the spectroscopic knowledge."
R&D Specialist at Algae Food & Fuel
enables you to quickly visualize and analyze spectra from many formats.
For getting an overview on measured spectra, selecting and conversion
it is an ideal tool. Many operations like the peak finder and spectral
arithmetics facilitate your work. "
Hanns Simon Eckhart, Product Manager Systems at tec5 AG
am very satisfied with the Spekwin32 spectroscopy application software.
It is intuitive and is supporting multiple types of file formats allowing
to import all types of spectra from different spectroscopy techniques.
This at a very affordable price for the industry and free for academics.
A great product! "
Denis Leroux, Project Lead at bioMérieux
is excellent software for viewing and manipulating spectra. It is
easy to use and reads lots of formats. I have looked at various software
packages to visualize and manipulate spectra and Spekwin32 is easily
the most superior. "
Margaret Smith, Research Scientist and University Teacher at Centre
for Textile Conservation and Technical Art History, University of
used Spekwin32 extensively during my thesis. As I had no local access
to the original Perkin-Elmer software needed in order to analyse a
huge collection of obtained spectra, I had to do some research on
spectroscopy software. Nothing came up except for Spekwin32. Not only
does Spekwin32 give one the ability to read multiformat spectra, one
can also visualise data, perform spectral arithmetics, convert a file
to a number of formats and much more. Truly an excellent tool! "
Panagiotis Galatis, Fine Art Conservation at Northumbria University
is a great multiformat spectroscopy software to use in the lab. As
it is very convenient to analyze data using the original spectra,
one of the most important benefits of Spekwin32 is that it can support
many data format including Thermo Galactic Grams .SPC, ASCII, JCAMP-DX.
Its good user graphical interface for a fast viewing and processing
spectra together with its benefits for exporting data in various formats
makes me highly recommend Spekwin32 in all labs."
Cristina Rodriguez-Rodriguez, Computational Chemist at Pharmaceutical
Sciences, University of British Columbia
is really a big rescue that comes free for academician and at decent
package for commercial application, especially for researcher handling
multi-format spectroscopy data in daily basis. I used it very extensively
and would be always very thankful to Friedrich for developing such
a flexible and impressive software that too available in public. Except
for few data from old Perkin Elmer instrument, I used Spekwin32 for
my entire PhD thesis. I highly recommend this amazing package."
Amrit Paudel, Senior Scientist at Research Center Pharmaceutical
Engineering GmbH, Austria
is an excellent bit of software which I have been using for many years.
Its free availability is deeply appreciated. The ability to easily
compare and manipulate spectra has helped me in separating spectroscopic
data of mixtures and conformers. Keep up the good work."
Mahesh Uttamlal, lecturer in Forensic Investigation at Glasgow
Caledonian University, Scotland/UK