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Laboratories that perform pre-employment drug screening are fighting back —
against hundreds of products now on the market that promise to mask evidence of
illicit drug use, according to an
article scheduled for the Sept. 8 issue of Chemical & Engineering News, ACS’
In the article, C&EN Senior Business Editor Melody
Voith points out that job applicants now have access to an array of products
purported to alter urine samples to hide evidence of marijuana, cocaine, and
other illegal drugs. Some are supposed to dilute evidence of illicit drugs to
levels undetectable by conventional tests. Others used adulterants advertised to
inactivate or destroy chemical markers used to identify
Drug-testers are responding with more sensitive tests that can
identify tell-tale chemical signs of diluted urine samples or quickly detect the
presence of adulterants. The article also explains that testers may get a boost
from proposed new drug testing guidelines from the U.S. Department of Health
& Human Services. They would permit use of hair and saliva samples in drug
screening of candidates for federal jobs. That screening could indentify illicit
drugs more reliably than urine samples alone, the article notes.
News release from American Chemical Society (ACS) on September 8, 2008.
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