The Matrix Cup has been especially manufactured for ease of use and accuracy.
The cup has a built in temperature strip to validate urine temperature and is
sealed to prevent any cross contamination.
• Opiate 2000
• Specific Gravity
The Matrix Cup is an immunochromatography based one step in vitro test. It is
designed for qualitative determination of drug substances in human urine
specimens. This assay may be used in the point of care setting. Below is a list
of cut-off concentrations for each drug.
Specific Gravity: Testing for sample dilution. This
test is based on the apparent pKa change of certain pretreated polyelectrolytes
in relation to ionic concentration. In the presence of an indicator, the
colours range from dark blue or blue-green in urine of low ionic concentration
to green and yellow in urine of higher ionic concentration.
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 colours over wide pH range. The colours
range from orange (low pH) to yellow and green to blue (high pH).
Oxidants: Testing for presence of oxidizing reagents.
In this reaction, a colour indicator reacts with oxidants such as hydrogen
peroxide, ferricyanide, persulfate, or pyridinium chlorochromate to form a blue
colour complex. Other colours may indicate the presence of other
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