Published: Journal of Analytical Toxicology, Volume 20, Number 3, May/June 1996, pp. 195-196.
The Effect of Glutaraldehyde Adulteration of Urine Specimens
on Syva EMIT II Drugs-of-Abuse Assays
S. George and R.A. Braithwaite
The effect of glutaraldehyde (the active component of “UrinAid”) on Syva EMIT II drugs-of-abuse screening assays was studied. It was found that, dependent on the assay involved, concentrations of between 0.75 and 2.00% (v/v) of glutaraldehyde in urine could give rise to false-negative screening results. A simple method for identifying urine specimens that have been adulterated with glutaraldehyde, based on final absorbance rate readings (dA/min), is proposed.
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