Mitsubishi P91DW Manuale Utente Pagina 117

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Alpha Innotech User’s Manual, version 4
5-16
The Graph Tool
The Graph function is found in the lower left corner of the Molecular Weight tools box.
Molecular Weight Tools
Clicking in the Graph box displays the semi-log graph of the molecular weight data that
is used to calculate the molecular weights of unknown bands. (To remove the graph
window from the display, click on the Graph checkbox a second time.) The x-axis
corresponds to the band's vertical location on the screen, and the y-axis is a log
representation of molecular weight. By clicking on the appropriate button, the data can
be toggled between a least squares fit and a point-to-point fit.
Example of a Point-to-Point Graph Example of a Least Squares Fit Graph
The graph is useful to verify that the molecular weight data is entered correctly, and can
help determine the most linear region of the molecular weight standards. Further, if a
query band is clicked, its position will be shown on the graph by dashed lines (as shown
above).
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