False-negative results with Emit amphetamine confirmation kit
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چکیده
منابع مشابه
More on the false negative rate for EMIT cannabinoids.
We have been following with interest recent reports of false negative EMIT cannabinoid results (1,2). Our laboratory encountered similar problems in two New York City drug abuse proficiency survey samples. Samples 49N2 (February 1989) and 49T5 (August 1989) were spiked at 133 and 150 ng /mL respectively. Both yielded negative cannabinoid EMIT results when tested with the 100-ng/mL cutoff assay ...
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ژورنال
عنوان ژورنال: Clinical Chemistry
سال: 1996
ISSN: 0009-9147,1530-8561
DOI: 10.1093/clinchem/42.10.1726