Making Iodine from Seaweed

[jerryshizzle123]

There's one experiment (posted somewhere on this forum) involving burning seaweed to ash, boiling the ashes with water, filtering and collecting the filtrate, and adding to it a solution of acidified hydrogen peroxide. I've tried the lab many times with careful attention to precision, yet each time, I failed miserably. If anyone is familiar with the extraction process (or any other method for isolating iodine) and can lead me through it, that would be great. Thanks