Tlc

MIPs selective for phenylalanine anilide have been evaluated as stationary phases in TLC. Glass backing plates were coated with mixtures of finely ground MIP particles and binders. The plates showed preferential retardation of the enantiomer used as the print molecule (Figure 8). The RF values of both enantio-mers on nonimprinted polymers were higher than those observed on the imprinted polymers. The separations suffered from spot broadening, which was attributed to the heterogeneity of the recognition sites.

Figure 7 Separation of 17 |ig of racemic phenylalanine on po/y(Cu(II)[W-(4-vinylbenzyl)]iminodiacetate-co-EDMA) grafted to silica particles (4.6x50 mm column). The polymer was imprinted with D-phenylalanine. Isocratic elution at 1 mLmin~1, 50°C with 1.5mmolL~1 glycine in water. (Adapted from Vidyasankar S, Ru M and Arnold FH (1997) Journal of Chromatography A 775: 51-63, © 1997, with permission from Elsevier Science, UK.)

Figure 7 Separation of 17 |ig of racemic phenylalanine on po/y(Cu(II)[W-(4-vinylbenzyl)]iminodiacetate-co-EDMA) grafted to silica particles (4.6x50 mm column). The polymer was imprinted with D-phenylalanine. Isocratic elution at 1 mLmin~1, 50°C with 1.5mmolL~1 glycine in water. (Adapted from Vidyasankar S, Ru M and Arnold FH (1997) Journal of Chromatography A 775: 51-63, © 1997, with permission from Elsevier Science, UK.)

The technique is attractive because it is simple, fast and allows multiple analyses in the same run.

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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