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American Chemical Society's Weekly PressPac -- Dec. 12, 2007

this method to be extremely useful both in research laboratories and in development of devices for point-of-care diagnostics. AD

Immunomagnetic Diffractometry for Detection of Diagnostic Serum Markers



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Marijuana smoke contains higher levels of certain toxins than tobacco smoke
Chemical Research in Toxicology

Heres another reason to keep off the grass. Researchers in Canada report that marijuana smoke contains significantly higher levels of several toxic compounds including ammonia and hydrogen cyanide than tobacco smoke and may therefore pose similar health risks. Their study, termed the most comprehensive to date on the chemical content of marijuana smoke, is scheduled for the Dec. 17 issue of ACS Chemical Research in Toxicology, a monthly journal.

David Moir and colleagues note that researchers have conducted extensive studies on the chemical composition of tobacco smoke, which contains a host of toxic substances, including about 50 that can cause cancer. However, there has been relatively little research on the chemical composition of marijuana smoke.

In this new study, researchers compared marijuana smoke to tobacco smoke, using smoking machines to simulate the smoking habits of users. The scientists found that ammonia levels were 20 times higher i

Contact: Michael Woods
American Chemical Society  

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