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protein_electrophoresis [2023/06/21 10:57] – quality_managerprotein_electrophoresis [2025/01/08 16:15] (current) – external edit 127.0.0.1
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 [[quality_manual|QM home]] [[quality_manual|QM home]]
 ^Name^Unique ID^Edition^Date of Edition^ ^Name^Unique ID^Edition^Date of Edition^
-|Documentary procedure for protein electrophoresis|LSSTH/A/QM/01| 1 | 01-03-2023|   +|Documentary procedure for protein electrophoresis|LSSTH/A/QM/01| 1 | 15-06-2023|   
    
 ^Preparing authority^Approving authority^Review period^ ^Preparing authority^Approving authority^Review period^
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   - After 10 minutes removes siliconized glass slide by sliding movement and take care so that gel does not broken down.    - After 10 minutes removes siliconized glass slide by sliding movement and take care so that gel does not broken down. 
   - Gel is ready for sample application.    - Gel is ready for sample application. 
 +  - Immediately apply the sample to prevent excess drying. 
  
  
  
 +**Sample Applicator Preparation**
  
 +Prepare comb from the stainless steel as shown in image.
 +Attach the magnetic strip to the ruler.
 +Stick the ruler with the platform by feviquick.
 +Stick the Applicator to magnetic strip. Applicator can be move up and down.  
      
  
 **Sample application** **Sample application**
 +  - Put Rough non sliconized glass slide below the sample applicator.
 +  - Apply 4 micro liter sample over the sample applicator at the edge of applicator as shown in figure. so that excess sample will be removed on glass slide.
 +  - Lift up the sample applicator and wipe the back side of applicator so that backward running of sample can be prevented.
 +  - Replace the rough glass slide with glass slide having prepared gel.
 +  - Apply the sample near the one end of gel with the applicator and wait for 2 minutes to allow the samples to get completely absorbed within the gel.
 +  - Remove the applicator.
 +  
 +**Running the samples in electrophoresis tank**
 +
 +  - Clean the electrophoresis tank with DI water and dry it with tissue paper before use. 
 +  - Put the electrophoresis tank on a table having even & leveled surface. 
 +  - Fill the cold buffer in the two compartment. Put the gel slide in electrophoresis chamber in such a way that sample applied should remain on cathodic side. 
 +  - Connect the gel with buffer through strip of filter paper wick & cover the chamber with its lid.
 +  - Connect the electrode on the side of slide containing sample well to the cathode (-) & other electrode to the anode of the power supply.
 +  - Set voltage at 300 volt and & run for 10 minutes.
 +  - After 10 minutes,switch off the power supply & remove the slide.
 +
 +**Fixation**
 +
 +Put the slide in to methanol for 10 minutes for fixation so that proteins get denatured and remain at same position even after staining and destaining.
 +
 +**Drying of gel**
 +
 +Put the fixated glass slide in to hot air Owen at 50-60° C for 20 minutes.
 +
 +**Staining**
 +
 +Place the gel slide in to Amido black staining solution for 2 minutes.
 +
 +**Destaining**
 +
 +Remove the excess stain by putting the gel in to destaining solution for 15 minutes so that background becomes clear.
 +
 +**Interpretation of the  result**
 +
 +
  
-Apply 4 micro liter sample over the sample applicator at the edge of applicator as shown in figure.