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Hair News - December 2003 |
| Author: Karen Shelton |
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Date: December 2003 |
Study Finds That Detection of Pot In Hair Test
Found Not To Be Significantly Influenced By Hair Color
Tampa, Florida, USA, December 4, 2004 - A researcher at the
University of South Florida Department of Criminology analyzed nearly
4,000 hair specimens that had previously tested positive for THC.
"Analysis of variance color categorization by THC concentration
demonstrated that THC concentration does not have a significant
association with hair color and therefore does not have a demonstrable
"color effect" the study concluded.
These findings differed from previous studies that showed that
melanin in hair appeared to play a binding role for some commonly
detected types of drugs.
For more
information, please contact
Paul Armentano,
Senior Policy Analyst of The NORML Foundation, at (202) 483-8751.
Abstracts of the study, entitled "Assessing the potential of a 'color
effect' for hair analysis of delta-9-tetrahydrocannabinol: Analysis of a
large sample of hair specimens," are available online at the Life
Sciences homepage at:
http://www.sciencedirect.com/science/journal/00243205
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