8. Doping Samples
"Doping" samples consists of spiking the sample with different chemicals. Chemicals that defeat immunoglobulin/antigen binding will cause a false negative on the EMIT. Most of these additives only work on the standard EMIT screening, not on RIA or GC-MS tests. In many cases, passing the EMIT is good enough, because they will never do a RIA or GC-MS confirmation on a sample that showed negative. I should also add that you may be watched, so don't rely on this method. You should be able to find out ahead of time if you will be supervised.
Some of the following additives alter the urine's pH, and most labs now test the pH to see if the sample has been altered. If you are subject to random tests, you may want to carry an additive in your wallet. Additives are illegal in the state of Texas, and commercial vendors will not ship their product to Texas addresses.
8.1 Effective Additives
The following additives are recommended.
8.1.1 Bleach (Powdered)
Chlorinated bleach will test negative, and it's the best household additive. In an emergency, add unscented bleach crystals to a diluted sample. It's recommended to grind the powdered bleach to a finer grain. A 1/4 teaspoon is recommended for a 60cc sample. For liquid bleach, add six to ten drops. Bleach will throw the pH outside the normal body range, so it may be apparent that the sample was tampered with. Some bleaches foam or leave residue, so experiment with different brands before selecting which to use.
8.1.3 Water
You can dilute your sample heavily with water. Don't confuse this with drinking water! You can also add water directly to the sample. Be sure to use hot water, between 91 and 97 ° F, they will likely take the temperature of the sample. This method isn't dependable because some facilities have the sink water shut off so people can't do this. If there is running water, they may listen to you. If you turn on the water, make it sound like you're washing your hands or something.
8.2 Ineffective Additives
The following additives are not recommended. Many of these may give negative test results, but are not recommended for other reasons.
8.2.1 Ammonia
Two ounces will render the sample negative. The pH is altered, and the ammonia odor is strong enough to be recognized.
8.2.2 Blood
It's been said that a few drops of blood will fix your sample. It does not.
8.2.3 Draino
Draino will test negative. However, Draino is not recommended because it doesn't work well even when half a teaspoon is added. It colors the sample blue, and will put the pH outside the normal body range. Draino foams, and leaves metal specs that must be removed.
8.2.4 Goldenseal
Goldenseal put directly in the sample doesn't alter test results. It only turns the specimen brown. Do not dope your urine with Goldenseal. Goldenseal is more commonly used as a drug screen to be consumed.
8.2.5 Hydrogen Peroxide
Industrial grade will destroy half the THC metabolites. Household strength hydrogen peroxide does nothing. 30% H2O2 may oxidize the THC metabolite into something that would not react in the screening test and would show up as something different by GC-MS.
8.2.6 Lemon Juice
Lemon juice is a myth, it will not change the test results.
8.2.7 Liquid Soap
Liquid soap Will test negative, but makes the specimen cloudy, which certainly draws suspicion.
8.2.8 Mary Jane's SuperClean 13
This additive was effective for a very short period. SuperClean had to be strong enough to beat the tests, but weak enough to be undetectable. It failed to cause a false-negative in 3% of the tests. In fact, it also causes a false-positive on the EMIT for alcohol! Don't use it.
8.2.9 Purifyit
Imported from Europe, Party Hut Enterprises sells Purifyit with a money-back guarantee. PHE claims there have been no returns. Oklahoma NORML refuses to endorse this product because it has flunked too many truck drivers.
8.2.10 Sodium Nitrate
This is more effective than table salt, but dissolves poorly.
8.2.11 Table Salt
Two tablespoons of salt will test negative, but puts the density out of normal range. Residue can also be seen at the bottom of the cup.
8.2.13 Vinegar
Adding vinegar to your sample will test negative, but also drops the pH. In fact, lowering the pH is what causes the sample to test negative. If the urine is extremely acidic, the antigen-antibody reaction will proceed at a slower rate which could produce a false negative. This method is not recommended because if you are lucky and lower the pH enough to produce a negative, there's a chance that the pH itself will also be tested.
8.2.14 Visine
This is debatable. Byrd Labs concluded that Visine does not work. Clinton said that the lab he worked in tested Visine, and concluded that Visine works every time as a false negative for the EMIT. It can be detected due to inability of the sample to foam.
8.2.15 WD-40
Another myth. WD-40 can only do harm.
8.3 Untested Additives
8.3.1 Papain
This is a papaya enzyme available over the counter. It isn't known whether this does anything. Dr. Grow said that Papain is an antibody to THC, and in theory may destroy THC when added to the urine sample. However, positive urine doesn't actually contain THC, it contains THC metabolites. Papain has not been tested, and may or may not work.