Generate Pore Size Distribution Graph Overlays

The following reports in the physical adsorption applications can produce graphical results for a sample material's pore size distribution:

Two methods can be used to import and overlay report data into another interactive graph using shortcut menu options:

  • Import ASCII text data. Data can be imported from an ASCII text file into the interactive graph. The ASCII text file must follow certain rules.
  • Copy/paste. Data can be copied from one sample file (source) and pasted into another sample file (target).

Pore size distribution report overlays menu selections are:

  • Copy data. Used to copy data sets.
  • Paste data. Used to paste data sets.
  • Edit Imported Data. Used to edit data sets.
  • Display Imported Data. Used to hide or show the imported data.

Import ASCII Text Data

ASCII text file format rules

  • The header must consist of one line to include title, two unit specifications, and distribution type:
  • Accepted pore dimension units are: A, nm, um
  • Accepted pore volume units are: cm3/g, cm3/g, ml/g
  • Accepted distribution types are: cumulative, incremental

Two examples of a header format:

My Title (A, cm3/g, incremental)
My Title (A, cm3/g, cumulative)

  • The data must be in two columns and should be separated by a comma or white-space.
  • The data lines must be ordered so that pore dimensions are monotonically increasing or decreasing.
Sample ASCII Text File

silica alumina bjh (A, cm3/g, cumulative)

456.657
444.847
429.168
425.419
419.629
360.634
340.859
326.601

 

0.0133559
0.0546427
0.0869924
0.119721
0.132681
0.156611
0.197672
0.233092

Window appearance will vary depending on the selected report. This function can be performed on samples files with a Completed status or during an analysis.

  1. Create the ASCII text file using the proper format as indicated above.
  2. In the analyzer application, go to File > Open. Select a sample file to overlay graphs on to. Click Open (or double-click the file name).
  3. Right click in the graph area and select Edit imported data.
  4. In the Select Imported Overlays window, if the ASCII text file does not display, click Import to locate the file. Select the ASCII text file in the Select Imported Overlays window, then click OK. If an error message will display instead, verify that the .TXT file format is in the correct format.
  5. To include the overlay data in a printed report, see Print Pore Size Distribution Overlay Data in Reports.

Overlay Pore Size Distribution Data using Copy/Paste

  1. Open a source sample file and a target sample file; both should have a Complete status. The report will open to the interactive reports window.
  2. In the source sample file, right click on the graph and select Show Curve. Deselect any differential curve data to hide them in the graph.
  3. Right click in the graph area again and select Copy Data.
  4. Change to the target sample file, right click the graph, and select Paste data. The graph now displays overlayed data from the source sample file.

Typically, one new graph will appear showing both the cumulative and differential curves. To show or hide individual curves, right click the graph and select (or deselect) Display imported data.

  1. Ensure that all parameter fields are set appropriately, then click Paste.
  2. To include the overlay data in a printed report, see Print Pore Size Distribution Overlay Data in Reports.

Print Pore Size Distribution Overlay Data in Reports

  1. Open the sample file containing the overlay data and select Advanced from the drop-down list at the bottom of the window.
  2. Click the Report Options tab.
  3. In the Selected Reports list box, select the cumulative, differential, or incremental intrusion graph to show the imported distribution data, then click Edit (or double-click the selected report).
  4. In the Overlay drop-down box, select Imported.
  5. Click OK to close the window.
  6. Click Preview on the Report Options tab. Click Print in the reports toolbar section to display print options.
 
Micromeritics Learning Center    Contact Us

Copyright © 2013-2018. Micromeritics Instrument Corporation. All rights reserved.