Urine has a very strong smell that just will not go away with a simple mop up. If you have a dog or cat in the home, you probably know what I am saying. I was once in a situation where guests would be arriving in a few minutes and that is when I realised the dog had urinated on the tile floor. Luckily I had read about chemicals that can be used when removing urine odour and stains from tile floors. I will share what I learned here.
Use paper towels
You will need to cover the entire area that has been soiled by the urine with paper towels, I would recommend that you have about 3 layers of paper towels because the first one will be so soaked and the second will be wet while the third one will enable you to remove the 2 layers easily.
Paper towels are best because you do not want to spread the urine and its particles any further than it has already gone. When all the urine has been soaked up, gather the paper towels and throw them into the toilet and flash, do not throw in a bin within the house because that will just cause the same odour in the air and in the bin.
Use enzyme based disinfectant
It is very important that you use enzyme based disinfectant because other detergents will not work and may only make the situation worse. Urine contains uric acid and only an enzyme based disinfectant can remove those crystals and bacteria that cause the unpleasant odour. Pour the disinfectant onto the area that was covered in urine or onto the stain left behind and let it follow the path taken by the urine, then leave it to settle for a few minutes. I would recommend 15 minutes.
If you are more into green cleaning, you can make your own enzyme based cleaner using vinegar. You will use equal amount of distilled white vinegar and water, mix them together and pour onto the surface where the urine was and let it sit for 10 to 15 minutes.
After 15 minutes, get a clean sponge or a mop and clean the area, making small circular movements over the surface, but being careful not to get the liquid to cover an even bigger area. Do this until you notice that the stain is removed and the area is looking clean. You may still smell a bit of that odour, but you will soon be rid of it.
When the tiles have been moped well, get paper towels again and suck up all the liquid from the tiles. Follow this up with a thorough rinsing of the floor, I would actually recommend rinsing the entire floor not just the area that had been soiled. Use a lot of water and then dry it up.
Vacuum the floor
To ensure all the uric acid crystals and bacteria are completely gone; you will need to vacuum the floor using a vacuum for tile floors. Some of the good vacuums even have an odour eliminator which will freshen the air. It is also important that you have a good filter which will prevent particles from escaping into the air. Once all this is done, you should have a fresh smelling floor and you should probably remind your dog not to do that in the house again.
It is important that you never try to mop the urine because you are going to spread it around and you also risk losing a good mop because it will then start to smell like urine. Paper towels are the best option because they can easily be disposed of. Also soap and water may seem like a good idea but experience has taught me that it is not as effective as enzyme based disinfectants.