• Scale charcoal charcoal weighs about 0.100 ± 0.01 g., With the microbalance three positions, put in a test tube.
• Saturated solution of dye Acridine Orange (AO) at a concentration of 50 ppm to 10.0 cm3 volume in vitro Article 3.
• Turn off spigot vitro And shake occasionally to the surface area of activated carbon by exposure to solvents to absorb a period of 90 minutes (Providence NIPA Sri information, 2555th).
• When immersed in a solution until the full 90 minutes and in vitro put a spin. centrifuge to separate the activated charcoal and the supernatant was removed from each other.
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