Difference between revisions of "Diluted PBS"

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== Required Items: ==  
 
== Required Items: ==  
  
* 25 ml Serological Pipette
+
* 25 mL Serological Pipette
 
* 500 mL volume metric flask
 
* 500 mL volume metric flask
* 500 ml borosilicate glass bottle  
+
* 500 mL borosilicate glass bottle  
* Stock solution:  (PBS - PHOSPHATE BUFFERED SALINE 10× concentrate - P5493) from sigma / Merck
+
* PBS - PHOSPHATE BUFFERED SALINE 10× concentrate - P5493 from sigma / Merck
 
* Type II water
 
* Type II water
  

Revision as of 11:43, 17 November 2023

Required Items:

  • 25 mL Serological Pipette
  • 500 mL volume metric flask
  • 500 mL borosilicate glass bottle
  • PBS - PHOSPHATE BUFFERED SALINE 10× concentrate - P5493 from sigma / Merck
  • Type II water

Preparing diluted PBS

Instruction:

1st: Transfer 50 ml PBS stock solution into the empty 500 ml borosilicate glass bottle (work inside the bio LAF bench to avoid polluting the stock PBS solution)

2nd: Transfer 450 ml type II water into the same above 500 ml borosilicate glass bottle. (work outside the LAF bench, on the lab bench)

3rd: Autoclave the diluted PBS solution before using.


Work Steps

Step 1:  Use 75% antibac ethanol alcohol to spray the pack surface of 25 ml Serological Pipette, the surface of the 500 ml borosilicate glass bottle and the bottle of stock solution.

Step 2: right after spray each item and place them inside the bio LAF hood.

Step 3: Transfer 50 ml PBS stock solution into the empty 500 ml borosilicate glass bottle and close the cap, then take out the bottle from LAF.

Step 4: transfer 450 ml type II water with 500 mL volume metric flask into the 500 ml borosilicate glass bottle. (Work outside the LAF fume hood – just on lab bench).

Step 5: Autoclave the diluted PBS solution.