How can I clean a nicotine smell out of an 80 year old oak desk?

Here is an article with several ideas for how to remove the smell: https://www.hunker.com/13415991/how-to-get-cigarette-smoke-smell-out-of-wood

Here's a post that might help you - https://www.hunker.com/13423405/how-to-remove-cigarette-smell-from-wood-furniture

Hi Linda,

Scrub it with soapy water with Zoflora added and let it dry, or Spray it with Fabreez spray for fabric freshness and or sprinkle with Shake and vac and leave until it has absolved the smell. Try one or all as necessary........

I tried all of the afore mentioned methods and more years ago on a moldy smelling antique chest of drawers. I hit the jackpot when I used silica gel packets. Put them in for a few days, then discard and replace until the odor is gone. I knew there was a reason I had been saving these for years.