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Figure XX. Decarbonation with acid acetic.
Figure XX. Using the shaker to help decarbonation reaction.
Figure XX. Setting the centrifuge.
Place ~2 cm3 of undried sample into a centrifuge tube with 25 mL of acetic acid (10% solution). |
Mix well, and let sit until the reaction ceases (using the agitator in the chem lab helps). |
Shake well again to ensure the reaction has stopped (i.e., no more bubbles). |
Spin sample in the centrifuge (15 min at 1500 rpm) |
Decant the acetic acid solution and dispose of the acid solution properly. |
Add 25 mL of DI to the centrifuge tube and centrifuge again for 15 min at 1500 rpm. |
Decant the clear water. |
Repeat the "wash cycle" (Steps 5 and 6) with DI. Wash at least 3X |
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