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Extended Multiplicative Scatter Correction (EMSC)
 Version
1.2
of EMSC_Toolbox
has been released... see below for
change notes.
EMSC
is a
powerful preprocessing technique to isolate and remove complicated
multiplicative and additive effects, such as those caused
by light scattering in reflectance spectroscopy.
It expands on the popular Multiplicative Scatter/Signal Correction
technique by offering much improved flexibility in selecting
backgrounds to subtract (known interferences) as well as scaling
targets and known analyte spectra. Eigenvector Research
is offering this patented technique as an add-on for use with
PLS_Toolbox
as EMSC_Toolbox.
For
examples of the use of this bleeding-edge technology see:
Martens H, Stark E., "Extended multiplicative
signal correction and spectral interference subtraction:
new preprocessing methods for near infrared spectroscopy,"
Journal of Pharmaceutical and Biomedical Analysis
1991; 9: 625-635.
Martens, H.; Nielsen, J. P. and Engelsen, S. B. "Light
Scattering and Light Absorbance Separated by Extended Multiplicative
Signal Correction. Application to Near-Infrared Transmission
Analysis of Powder Mixtures" Analytical Chemistry
2003; 75(3), 394-404.
Gallagher, N.B, Blake, T.A., Gassman, P.L., "Application
of Extended Multiplicative Scatter Correction to mid-Infrared
Reflectance Spectroscopy of Soil" accepted Special
Issue for Sijmon de Jong Journal of Chemometrics;
2005.
Release
1.2 Now Available
EMSC_Toolbox
is in release 1.2 in which EMSC is now fully integrated with
preprocess GUI in PLS_Toolbox. Once you install EMSC_Toolbox
1.2 it is automatically detected and offered to you in the
preprocess GUI. You can use it just like any other preprocess
method in PLS_Toolbox.
You
can purchase a copy or get a demonstration license from our
License Manager. NOTE:
EMSC_Toolbox requires PLS_Toolbox Version 4.1 or later. You
must upgrade your PLS_Toolbox
to Release 4.1 to use EMSC_Toolbox. See the
EMSC_Toolbox Pricelist for other ordering information.
Product
Support
Eigenvector
Research offers user support for EMSC_Toolbox by e-mail at
helpdesk@eigenvector.com. Questions
are almost always answered within 24 hours (and usually much
less). Updates and bug fixes will be available for users to
download from our web site. For information on other support
options, see our technical
support page.
System
Requirements
EMSC_Toolbox
requires PLS_Toolbox version 4.1 or higher and MATLAB
6.5, 7.x or higher. EMSC_Toolbox does not require other
MATLAB toolboxes. Like most MATLAB toolboxes, EMSC_Toolbox
is platform independent. It will function on any platform
on which MATLAB functions (e.g. MAC, PC, Unix).
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