Adulterant / SVT Test

VeriCheck Adulterant / SVT Test

Adulterant testing is used to confirm the validity of the specimen by checking 7 different parameters.

Creatinine

Creatinine

Tests for sample dilution.

In this assay, creatinine reacts with a creatinine indicator in an alkaline condition to form a purplish-brown colour complex. The concentration of creatinine is directly proportional to the colour intensity of the test pad.

Glutaraldehyde

Glutaraldehyde

This test screens for the presence of exogenous aldehyde. Adulterants like UrinAid and Clear Choice contain glutaraldehyde which could cause a false negative result by disrupting the enzyme used in some immunoassay tests.

Nitrates

Nitrites

Commercial adulterants such as Klear and Whizzies will cause a positive result for nitrites. These products work by oxidizing the major cannabinoid metabolite THC-COOH.

Normal urine specimens should contain no trace of nitrites and positive results for nitrites usually indicate the presence of an adulterant.

Creatinine

Pyridinium Chlorochromate

This adulterant, sold under the brand name UrineLuck produces oxidants that should not be present in urine and may indicate that the sample has been adulterated.

pH

pH

Tests for the presence of acidic or alkaline adulterants. This test is based on the well-known double pH indicator method that gives distinguishable colors over a wide pH range.

Specific Gravity

Specific Gravity

Tests for sample dilution.

The normal range is from 1.003 to 1.030. Values outside this range may be the result of specimen dilution or adulteration.

Oxidants

Oxidants

Adding bleach or other oxidants to urine can “destroy” the drug molecules in the urine specimen.