SKC 560-001 MethAlert Kit Colorimetric Wipe Kit - Manual (Page 3)

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Do not dispose of Step 1, Step 2, or Step 3 solutions, spray nozzles, or
bott les unless empty or expired. Bott les contain enough solution for
several tests.
Store solutions at ≤ 39.2 F (4 C). Do not store with food.
SKC recommends sealing the solution bott les tightly with the provided screw
caps for transport and storage.
Thoroughly wash exterior of bott les with soap and water before
sampling at another site to avoid cross contamination.
Reading MethAlert Results
• The color bloom will be bright blue if methamphetamine residue is
present in the range of 15 to 5000 μg (see photos below).
• Positive color bloom intensity is directly proportional to the quantity of
methamphetamine residue on the wipe (e.g., meth at 15 μg would be a
lighter blue than meth at 250 μg).
• Positive color bloom will last 15 to 20 minutes. Photograph results for
permanent record, if required.
Interferences
MethAlert is designed to detect the presence of methamphetamine residue to a
lower limit of visual identifi cation of 15 μg per wipe.
Possible Positive Interferences
• MDMA (Ecstasy) – very dark/deep blue color reaction
• Ritalin ® (Methylphenidate) – pale violet color reaction
• Methcathinone (Cat) – pale blue color reaction
• MDA (3,4-Methylenedioxyamphetamine) – pinkish rose color reaction
• MDEA (Methyl diethanol amine) – deep blue to muddy brown at higher
concentrations
• Some secondary amines can cause a color reaction
Negative Interferences
There are no known negative interferences.
Positive – bright blue color bloom
Meth residue detected
between 15 and 5000 μg
(See Quick Guide for color.)
Negative – no blue color bloom
Meth residue not detected
at 15 μg lower limit of
visual identifi cation
Negative Positive