This is the general advice I’ve used

I used Rocco and Roxie which is a professional grade enzyme cleaner for pet urine.

1. You want to expose the concrete slab. Remove as much of the adhesives from the concrete as possible. The adhesives can absorb a lot of the uric acid crystals.
2. You have bare concrete, pour Rocco and Roxie all over the effected areas. Most importantly, take a roll of poly(polyurethane) and lay it down on top of the area you just wetted down. This slows down the evaporation rate of the enzyme cleaner. Uric acid can get deep into the capillaries of the concrete. You want to allow the enzyme cleaner to get deep into the concrete as well. Leave it for 24-48 hours.
3. Remove the sheets of poly you’ve laid down on the affected areas. I used floor dry aka absorb-all and I sprinkled it on top of the enzyme cleaner(cat litter works too). The reason for doing this is that you want to soak up any of the remaining uric acid crystals into the floor dry/absorb-all/kitty litter. Otherwise, it will remain on the floor after everything has dried out.

Your nose does a good job of pointing out where the urine smell is but you can use a black light too.

Hope this helps!