Home » Chiral Environmental Pollutants: Trace Analysis and Ecotoxicology by R. Kallenborn
Chiral Environmental Pollutants: Trace Analysis and Ecotoxicology R. Kallenborn

Chiral Environmental Pollutants: Trace Analysis and Ecotoxicology

R. Kallenborn

Published January 18th 2001
ISBN : 9783540664239
Hardcover
210 pages
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 About the Book 

In 1848, Louis Pasteur [1] was the first to report the separation of two different types of sodium ammonium tartrate, which he assumed to be related to each other like two mirror images. A few years later this phenomenon was denomi nated chiralityMoreIn 1848, Louis Pasteur [1] was the first to report the separation of two different types of sodium ammonium tartrate, which he assumed to be related to each other like two mirror images. A few years later this phenomenon was denomi nated chirality (from the Greek word X tp (= cheir) which means hand) by Lord Kelvin who used the following definition: / call any geometrical figure or any groups of points chiral and say it has chirality if its image in a plane mirror, ide ally realised cannot be brought to coincide with itself (Lord Kelvin, 1883, ac cording to [2]). Subsequently, a large number of compounds were observed to fulfil these requirements. In biological systems this phenomenon of asymmetry had already been known for quite some time. Different snail species, for exam ple, produce mirror-image forms, fossils like ammonites exhibit chiral shapes, and, last but not least, the human body, including feet, hands and ears, can be divided into two parts which can be regarded as two non-superimposable mir ror images. After making some breath-taking scientific findings, two young Chinese American physicists, Tsung Dao Lee and Chen Ning Yang, were awarded the No bel prize in 1957 when they proved that the parity of weak interactions is not preserved [3]- asymmetric approaches were also applied to elementary and quantum physical processes under certain conditions (see Sect. 5. 2. 1).