UrineCheck 6 is based on detection methods that can
identify the presence of additives, adulterants and masking agents that
are added to urine.
UrineCheck 6 Drug Adulteration Test Strip:
Creatinine: Testing for sample dilution. In this assay, creatinine reacts
with a creatinine indicator under alkaline conditions to form a purplish-brown
color complex. The concentration of creatinine is directly proportional to the
color intensity of the test pad.
Glutaraldehyde: Testing for the presence of exogenous aldehyde. In this
assay, the aldehyde group on the glutaraldehyde reacts with an indicator to
form a pink color complex.
Nitrite: Testing for the presence of exogenous nitrite. Nitrite reacts
with an aromatic amine to form a diazonium compound in an acid medium. The diazonium
compound, in turn, couples with an indicator to produce a pink-red color
Oxidants: Testing for the presence of oxidizing reagents. In this reaction,
a color indicator reacts with oxidants such as bleach, hydrogen peroxide or
pyridinium chlorochromate to form a blue color complex. Other colors may indicate
the presence of other oxidants.
pH: Testing for the presence of acidic or alkaline adulterant. This
test is based on the well-known double pH indicator method that gives distinguishable
colors over a wide pH range. The colors range from orange (low pH) to yellow
and green to blue (high pH). Specific Gravity: Testing for sample dilution.
This test is based on the apparent pKa change of certain pretreated polyelectrolytes
in relation to the ionic concentration. In the presence of an indicator, the
colors range from dark blue or blue-green in urine of low ionic concentration
to green and yellow in urine of higher ionic concentration
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