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How To Use a Control

Using Control with Alco-Screen 02

The color reaction with alcohol in saliva is somewhat slower and less intense than with alcohol in aqueous solutions. The Alco-Screen 02 may be qualitatively verified by using a test solution prepared by adding 10 drops of 80 proof distilled spirits to 8 oz. (1 cup) of water. This solution should provide a positive result (distinct colored line) across the reactive pad of the test. Commercially available controls that contain preservatives cannot be used with the Alco-Screen 02.


Alco-Screen Control Information

The integrity of  Alco-Screen may be qualitatively verified using a test solution prepared by adding 4 drops of 80 proof distilled spirits to 8oz. (1 glass) of water. This solution should provide a color reaction equal to or higher (darker) than the 0.04% (0,4‰) color block. The color reaction with alcohol in saliva is somewhat slower and less intense than with alcohol in aqueous solutions.

Conclusion: Yes, you can use a control when testing with Alco-Screen. A control can be used as a means of performing quality control during testing to confirm that your Alco-Screen test strips are performing and providing accurate results.
 

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