Cyclodextrin Bonded Phases

In the case of enantiomeric HPLC separations on cyclodextrin-bonded stationary phases the necessity of pre-column achiral derivatization is not as general as with the Pirkle-type phases. The introduction of the aromatic ring into analytes often improves their separation. Amino acids are usually derivatized with dansyl chloride, 3,4-dinitrobenzoyl chloride, o-phthalaldehyde/2-mercaptoethanol, etc., or with highly fluorescent reagents such as 9-fluorenylmethyl chloroformate, 9-fluorenylmethoxycarbonylglycine chloride, 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate. etc.

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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