Protocols: Instrumental Background Correction


Instrumental background experiment, measuring oxygen flux without biological sample at four oxygen levels (left), and linear relation between instrumental background oxygen flux and oxygen concentration (right). Modified after: Gnaiger E. (2001).

  • Instrumental background correction and accuracy of oxygen flux. MiPNet14.06 [download pdf 412 kb; 2010-08-10]. 

Correction for the instrumental background is a new and essential standard in high resolution respirometry, automatically performed by DatLab. Background measurements provide a test of instrument function. In the OROBOROS Oxygraph-2k, background corrections are usually within a few % of experimental flux over the entire experimental oxygen range. At minimum activities, however, even the small background effects become highly significant and require routine correction. 

 

Autoxidation ascorbate and TMPD causes a chemical background oxygen flux. DatLab 4 provides on-line correction for instrumental and chemical background.

   



Instructions for using the templates are given in the O2k-Manual: Oxygen flux analysis: on-line. MiPNet12.09 (see Section 2).

           

Excel Template  "O2k-background. xls" is the template for analysis of O2k-background tests.

  • "O2k-background.xls" [download 306 kb; 2009-12-08]

       For downloading, click on the file name and save to C:\DatLab\DLTemplates. 

            

DatLab-Demo Files for off-line DatLab 4 Analysis of O2k-experiments:

  • 2003-04-17 AB-01_Calib_1406. DLD [download 717 kb]    

       For downloading, click on the file name and save to C:\DatLab\DLDemo. 

    

Download all Demo and Templates files from a ZiP-Folder [download 353  kb]

 



References


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