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1. Menu Item [Open]

• For loading of spectra.
• Several files can be selected simultaneously in the usual manner.
• While loading the spectra, the status of the reading procedure is displayed in the middle part of the status bar.
• If possible, the x and y axis types are chosen according to the most recently opened spectral file.
• The following file formats are currently recognized (find a zipped collection here):
  
  

  file extension	Description
  *.asc	ASCII file format of absorption spectra of the MILTON ROY MR3000 diode array absorption spectrometer. The Y Axis type of the file is detected automatically.
  *.csv	ASCII file format ("csv" = comma separated values) of spectra from some different sources: • absorption spectra of the VARIAN CARY 50 absorption spectrometer (Software: Cary WinUV). Spectra in transmittance and absorbance will be read. • absorption spectra of the Hewlett Packard 8453 absorption spectrometer. • IR spectra of Bio-Rad FTS 3000 MX FTIR spectrometer (software: Varian Resolution Pro) • absorption spectra of Scinco Neosys 2000 UV/Vis spectrometer (Software: Lab Pro Duo) • absorption spectra of WTW photoLab spectral software • multicolumn (1 - many), multiformat (all spectral types) csv file, produced by Spekwin32 itself
  *.dat	Spekwin32 ASCII file format. Contains any number of spectra together with their legend title. The program always takes the y values as absorbance, so be careful if you saved spectra in a different y scale type.
  *.dx/ *.jdx	JCAMP-DX 4.24/5.00 -file format of UV/VIS, Raman and IR spectra. NMR and MS spectra will not be read!! DIFDUP and ASDF coded spectra will not be read either. Tested Perkin Elmer software: UVCSS & FLDM (DOS software), UV-Winlab & FL-Winlab. Further Test spectra were available from Bio-Rad DigiLab, Mattson Instruments, Galactic Industries Lab Calc and GRAMS, Sadtler, Jasco HPLC System, NIST Chemistry WebBook, the IUPAC JCAMP site and Robert J. Lancashire's JCAMP site.
  *.fak	Simple ASCII file format for import of your own data. Tab separated XY Pairs, one pair per line, point or comma as decimal separator, optional header: if the first line reads wavenumbers or 1/cm or cm^-1 or cm-1 the x axis type is assumed to be wavenumbers, default is wavelength in nm. Automatic query dialog for axis types if unclear from file.
  *.ggg	File format of one of our home built spectrometers.
  *.prn	ASCII file format of WinSpec 1.6 (16Bit) software for CCD cameras from Princeton Instruments. Save in Winspec as ASCII-1 or ASCII-XY.
  *.sp	Binary and ASCII file formats of absorption, fluorescence, IR & Raman spectra of PERKIN ELMER spectrometers. Tested Software: UVCSS (DOS software), CFS (DOS software for LS-3B, LS-4B and LS-5B), UV WinLab, FL WinLab. Perkin Elmer Raman test spectra available from S. B. Engelsen's Database on Raman Spectra of Carbohydrates.
  *.spc	Thermo Fisher's binary spectral file format (originally from "Galactic Industries Corporation"). Software: GRAMS/AI. Quasi standard used by quite a lot of other vendors (e. g. Ocean Optics, Jobin Yvon Horiba). Tested spectral types: UV/VIS, NIR, FTIR, Raman, fluorescence. More about THERMO Galactic spc files here. Will not read spc files from EDAX XRF analyzers, this is a different file format. For those files, use the "EDAX Spectrum Viewer".
  *.spe	Binary file format of Roper Scientific / Princeton Instruments WinSpec/WinView Software (16bit and 32bit) . Possible x axis types are wavelength, absolute and relative wavenumbers (for Raman spectra).
  *.spk	ASCII file format of absorption spectra of the IKS XDAP diode array absorption spectrometer (IKS: now axeon in Oberhausen/Germany).
  *.spv	Spekwin32's own binary file format. Contains arbitrary numbers of spectra. Legend titles and other properties of individual spectra are saved. Changed file format in versions 1.68.1 and 1.69.2! Earlier program versions are not able to read later *.spv spectral files. Please see File/Save as... for more information about saving.
  *.trt *.tat *.ttt *.tit	ASCII file format of the Avantes software. Tested: Avantes SpectraWin Basic 5.0 and Avantes Avasoft 6.1. Measuring modes: trt: "Scope" tat: "Absorbance" ttt: "Transmittance" tit: "Irradiance"

2. Menu Item [Save]

• Saving current content of the graph window.
• Graph will be saved with the file name and file type from the last use of "Save as..." On first use, "Save as..." dialog will appear.
  
  

3. Menu Item [Save as ...]

• Saving current spectra / current graph. A "Save as..." dialog appears for file name, type and path.
• There are 10 file formats to select from:
  • spv files for fast and space-saving storage and reading in again of spectra in any composition.
  • spc files for saving of single spectra in Thermo Fisher's quite common file format. More about Thermo Fisher Galactic spc files here.
  • dx file for saving single spectra in the worldwide used, IUPAC-proposed standard file format JCAMP-DX.
  • dat files for import of values into graphing programs like Origin or Sigmaplot. Sample file. Multiple spectra interpolated get interpolated onto a single common x column.
  • csv fore easy export of the original spectral data for Excel and the like. Sample file. Multiple spectra contained as separately xy paired columns.
  • gif files for saving as internet usable pixel graphics, compressed files, 256 colours, resolution: 1350x900 pixels.
  • bmp files for saving as lossless pixel graphics, big files, resolution: 1024x768 pixels.
  • wmf files for saving as freely scalable vector graphics of small file size, best for Windows Office applications like MS Word or MS Powerpoint.
  • tif files for saving as rather small lossless compressed files with 32bit colours, best for printing, resolution: 1350x900 Pixel.
  • png files for saving as small lossless compressed files, the internet picture format of the future, resolution: 1350x900 Pixel.
    
• Hints for optimized graphics export:
  
  • With high resolution screen and maximized program window, the standard axes and legend fonts might look rather small in saved graphics. Try again with mid-sized Spekwin32 window.
    
  • Spectra are displayed as hairlines when using the smallest line width. This looks fine for on-screen display, but might be insufficient for print-outs (colors too faint). For graphics export it is recommended to use line width 2 or 3. Unfortunately these line widths appear to be much thicker in Spekwin32 than in exported graphics.
    
    

5. Menu Item [Save for Gnuplot]

• For creation of EPS files.
• Creates two files with the same name: a Gnuplot parameter file (*.plt) and a second file (*.tat) with the spectral values. The parameter file contains the necessary commands for Plot Title, Axes titling and scaling, second X-Axes, second Y-Axes (if degree of polarization is included), position of the legend box and creation of EPS file with the same name. Before saving, there is a dialog for configuration of these parameters where additional commands can also be included.
  
• For this function the following parameter files must exist in the program folder : gexit.plt, ginit.plt, pola36.plt, postcol.plt, postmon.plt (included in spekwin32_install_en.exe). Tested with Gnuplot 3.7 for Windows (32bit). You will find more information on Gnuplot here.
  
  

6. Menu Item [Copy to Clipboard]

• Current graph window is copied as a vector graphic to the clipboard. From there, it can be pasted into graphic or text processing software. For optimized graphics see File/Save as...
  
  

7. Menu Item [Print]

• Prints the current graph window. Select installed printers like usual.
• For optimized graphics see File/Save as...
• PostScript files (*.ps) can be produced by printing into a file with a PostScript printer driver.
  
  

8. Menu Item [Exit]

• Terminates the program. Unsaved spectra are lost!