A column containing 500 mg of activated carbon
in water suspension was 10 cm long and 1.0
cm in diameter. The bed height in the column was
2.0 cm. The column was preconditioned with 10–
15 ml 1 M HNO3 in acetone prior to percolation
of sample. After elution, the activated carbon
column was regenerated with 10–15 ml of
acetone.