Custom Plugin Tools

The tools listed here are add-ons to eFTIR. Custom tools are built for specific applications. Please contact us if you need a tool for your work. The Python programing language built in to Essential FTIR, coupled with the plug-in architecture of the software itself, makes it easy.

Mineral Exploration Toolkit

The Mineral Exploration Toolkit consists of two tools:

  1. Hull Quotient Baseline Correction
  2. Region Peak Picking

It was developed to help a geologist with her field work and saves huge amounts of time previously spent in tedious analysis. A day is spent in the field with a portable NIR spectrometer, collecting many Reflectance samples. Back in the lab, all of that data must be processed. These tools allow the batch processing of the spectra by (1) correcting baselines using a Hull Quotient algorithm particular to this data type, and (2) allowing the operator to specify regions of interest in the spectra over which peaks will be picked, generating a report for all of the spectra at once.

Click here to download this toolkit: setup_mineral_analysis_toolkit.exe

Radiometric Calibration

Radiometric Calibration is used in remote sensing and astronomy. The calibration step is needed to convert an infrared spectrum into useful, meaningful units. The inputs are a cold blackbody spectrum and its temperature, a hot blackbody spectrum and its temperature, and a target spectrum that needs to be calibrated. In addition to the calibrated spectrum, this tool can produce the Instrument Response Function, the Self-Emission spectrum, and the Calculated Hot and Cold blackbody spectra.

Definition of Variables

  • BBH is the Hot Blackbody spectrum
  • BBC is the Cold Blackbody spectrum
  • thBBC is the Theoretical Cold Blackbody spectrum
  • thBBH is the Theoretical Hot Blackbody spectrum
  • SE is the Self-Emission spectrum
  • IRF is the Instrument Response Function
  • Target is the spectrum to be calibrated
  • R is the calibrated spectrum

Calibration Algorithm

   The instrument response function is calculated: 
     IRF = (BBH-BBC) / (thBBH-thBBC) 
   The self-emission spectrum is calculated: 
     SE = (BBH/IRF) - thBBH
   The calibrated radiance is calculated: 
     R = (Target/IRF) - SE 
   The units of R are watts / (stearadian wavenumber centimeter_squared).

Click here to download this plugin: setup_radiometry_tool.exe. This also installs 3 sample spectra: a cold blackbody, a hot blackbody, and a target spectrum.

GC-FTIR analysis Tool

This toolkit handles GC-FTIR data generated by the Analytical Solutions and Providers (ASAP) IRD-3 GC-FTIR instrument

This software is widely used in forensics labs. GC Peak detection, automatic Library Search and report generation, 3D viewing and custom Software Generated Chemograms are a few of the features.

Click here to download this plugin: setup_GCIR_plugin.exe

Biorad/Digilab/Varian/Agilent .BSP file converter

.BSP files are multi-files: they can contain multiple spectra of multiple types. Typically a .BSP file will contain a day or week's worth of data: all of the interferograms, singlebeams and absorbance / transmittance data that were collected during the time period. JCamp-DX is also a multi-file format, so all of the spectra in the .BSP file can be stored in a corresponding JCamp-DX file.

This plugin will convert .BSP files into JCamp-DX files. The BSP files are in a proprietary and undocumented binary format. The JCamp-DX is human-readable ASCII text, is well documented and is supported by many spectroscopy software programs. Conversion to JCamp-DX allows the data to survive computer, instrument, vendor, and software changes.

Click here to download this plugin: setup_bsp_to_jcamp.exe

CIE Color Measurements

This custom tool calculates CIE color quantities from visible spectra . The spectra must be in units of nanometers vs. Reflectance and cover the spectral range of 360 to 830 nanometers.

CIE is the International Commission on Illumination. This body makes recomendations for colorimetry and photometry. The standards specify the light source (or illuminant) and the observer.

This tool is essential for color-matching measurments. Many application areas make use of this analysis:

  1. Plastics and textiles color control in development and manufacturing
  2. Color control of labels and packaging materials
  3. Testing of inks and paints
  4. Any finished product that requires color control

Essential FTIR uses these CIE illuminants:

  1. CIE D65 (daylight)
  2. CIE A (incandescent)
  3. CIE F2 (fluorescent)
And these CIE standard observers:
  1. Two degree field of view (CIE 1931)
  2. Ten degree field of view (CIE 1964)

These color space values are calculated and reported by Essential FTIR:

  1. CIE XYZ
  2. CIE Lab
  3. CIE LCh
  4. RGB

For more information on the theory and calculations, please see this helpful and informative site:

Click here to download this plugin: setup_cieTool.exe

After installation, the tool will appear in the 'Analysis' toolbox with the label 'CIE Color Measurement'.