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Chemical trap

In chemistry, a chemical trap is a chemical compound that is used to detect a certain molecule in cases where:
  • The concentration of this molecule is below the detection limit, either because it is present in a low concentration in a mixture or because it has poor characteristics for direct detection
  • The molecule is very reactive (for example cyclobutadiene) and it is not possible to isolate or detect it by spectroscopic means
  • The molecule is present in a mixture, where other components interfere with its detection (for example an enantiomer present in a racemate)
The trapping agent reacts with the chemical to be detected, giving a product that is more easily detected.

References

"green air" © 2007 - Ingo Malchow, Webdesign Neustrelitz
This article based upon the http://en.wikipedia.org/wiki/Chemical_trap, 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=Chemical_trap&action=history
presented by: Ingo Malchow, Mirower Bogen 22, 17235 Neustrelitz, Germany