Trifluoroacetate
Sodium salt of trifluoroacetic acid (above) and trifluoroacetic acid ester (below) with the organyl radical R (alkyl radical, aryl radical, alkylaryl radical, etc.). The trifluoroacetate group is marked in blue .
As trifluoroacetates which are salts and esters of trifluoroacetic acid , respectively.
use
In analytical chemistry , especially gas chromatography , certain groups of substances such as carbohydrates can be converted into esters of trifluoroacetic acid before analysis. This has the advantage that their volatility is higher than that of the starting substances and the detection can then be made with a halogen-sensitive detector such as the electron capture detector with higher selectivity and sensitivity.
literature
- Eugen H. Christoph: Balancing and biomonitoring of trifluoroacetate and other halogen acetates. Dissertation, University of Bayreuth 2002. urn : nbn: de: bvb: 703-opus-141 .
Individual evidence
- ↑ H. Eckstein: Bioanalytical and biochemical laboratory methods. Vieweg, Braunschweig / Wiesbaden 1998. ISBN 3-528-06418-8 ( restricted preview in Google book search), p. 237.