On Air

Investment

Buy this Domain?
Do you interesting about this domain and the running project?
Feel free to send your offer to webmaster.
pay with Paypal

Advertising

Precursor (chemistry)

In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound. In biochemistry, the term "precursor" often refers more specifically to a chemical compound preceding another in a metabolic pathway, such as a protein precursor.

Illicit drug precursors

In 1988, the United Nations Convention against Illicit Traffic in Narcotic Drugs and Psychotropic Substances introduced detailed provisions and requirements relating the control of precursors used to produce drugs of abuse. In Europe the Regulation (EC) No. 273/2004 of the European Parliament and of the Council on drug precursors was adopted on 11 February 2004. ( European law on drug precursors)

Illicit explosives precursors

On 15 January 2013 the Regulation (EU) No. 98/2013 of the European Parliament and of the Council on the marketing and use of explosives precursors was adopted. The Regulation harmonises rules across Europe on the making available, introduction, possession and use, of certain substances or mixtures that could be misused for the illicit manufacture of explosives.http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=uriserv:OJ.L_.2013.039.01.0001.01.ENG

Detection

A portable, advanced sensor based on infrared spectroscopy in a hollow fiber matched to a silicon-micromachined fast gas chromatography column can analyze illegal stimulants and precursors with nanogram-level sensitivity.S. Mengali, D. Luciani, R. Viola, N. Liberatore, S. Zampolli, I. Elmi, G. Cardinali, A. Poggi, E. Dalcanale, E. Biavardi, P. Esseiva, O. Delemont, F. Bonadio, and F.S. Romolo, Toward street detection of amphetamines. SPIE Newsroom (2013). Raman spectroscopy has been successfully tested to detect explosives and their precursors.Trace detection of explosives and their precursors by surface enhanced Raman spectroscopy. S. Almaviva, S. Botti, L. Cantarini, A. Palucci, A. Puiu, A. Rufoloni, L. Landstrom, F.S. Romolo. Proceedings of SPIE - The International Society for Optical Engineering, Article number 854602, Optics and Photonics for Counterterrorism, Crime Fighting, and Defence VIII; Edinburgh; United Kingdom (2012) Code 96354. Technologies able to detect precursors in the environment could contribute to an early location of sites where illegal substances (both explosives and drugs of abuse) are produced.Cloé Desmet, Agnes Degiuli, Carlotta Ferrari, Francesco Saverio Romolo, Loïc Blum and Christophe Marquette, Electrochemical Sensor for Explosives Precursors’ Detection in Water. linkhttp://www.mdpi.com/journal/challenges/special_issues/tech_security Challenges 8(1), 10; doi:10.3390/challe8010010 (2017). Carlotta Ferrari, Alessandro Ulrici and Francesco Saverio Romolo, Expert System for Bomb Factory Detection by Networks of Advance Sensors. linkhttp://www.mdpi.com/journal/challenges/special_issues/tech_security Challenges 8(1), 10; doi:10.3390/challe8010001 (2017). Francesco Saverio Romolo, Samantha Connell, Carlotta Ferrari, Guillaume Suarez, Jean Jacques Sauvain, Nancy Hopf. Locating bomb factories by detecting hydrogen peroxide. Talanta, Volume 160 15-20 doi: 10.1016/j.talanta.2016.06.033. (2016).

See also

References

"green air" © 2007 - Ingo Malchow, Webdesign Neustrelitz
This article based upon the http://en.wikipedia.org/wiki/Precursor_(chemistry), the free encyclopaedia Wikipedia and is licensed under the GNU Free Documentation License.
Further informations available on the list of authors and history: http://en.wikipedia.org/w/index.php?title=Precursor_(chemistry)&action=history
presented by: Ingo Malchow, Mirower Bogen 22, 17235 Neustrelitz, Germany