VeriCheck®
U-7 SVT

Drug Adulteration Test Strips

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

VeriCheck Adulteration Test Strips

Detect dilution or “flushing” of the system

Protect against sample altering and false negatives

Detect oxidizing / bleaching agents

Designed for Efficiency

Super quick and easy-to-use in just a couple of steps.

vericheck adulteration strips

Collect sample and dip strip for two seconds.

Wait 60 seconds, compare and confirm.

Wait 15 seconds, compare and confirm

These 7 parameters can be tampering your specimens:

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

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.

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.

Oxidants

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

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.

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.

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.

Cups and dips can be configured with the below adulterant test configurations:

  • SVT3A – 3-panel SVT strip CR SG PH
  • SVT3B – 3-panel SVT strip NI OX GL
  • SVT3C – 3-panel SVT strip CR PH OX
  • SVT6 – 6-panel SVT strip CR SG PH NI OX GL

This is a screening test device and does not provide a definitive test result. Laboratory confirmatory testing is recommended to confirm any non-negative test result.

Detect dilution of system 'flushing'

Protect against sample altering and false negatives

Detect oxidizing / bleaching agents

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