Introduction

In chiral chromatography, two diastereomeric ad-ducts with different physicochemical properties are formed during elution. The adducts differ in their stability (in chiral stationary phases, CSPs, or chiral coated phases, CCPs) and/or in their interphase distribution ratio (in chiral mobile phases, CMPs).

According to Dalgliesh, three active positions of the selector must interact simultaneously with the active positions of the enantiomer to reveal differences between optical antipodes. This is a sufficient condition for resolution to occur but it is not essential. Chiral discrimination may happen as a result of hydrogen bonding and steric interactions, making only one attractive force necessary in this type of chromatography. Moreover, the creation of specific chiral cavities in a polymer network (as in 'molecular imprinting' techniques) could make it possible to base enantiomeric separations entirely on steric fit.

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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