Future Trends

It seems unlikely that video densitometry will ever replace spectrodensitometry as both techniques have unique advantages. On the one hand spectrodensitometry allows the scanning of TLC/HPTLC plates at selectable wavelengths, the acquisition of UV/vis-ible spectra, the determination of peak purity and high accuracy of results. On the other hand, video scanning provides a computer or printed image that can serve as a permanent record of the results obtained which can be documented at any time in a report. Also, for some requirements the accuracy of scanning is sufficient for quantitative evaluation.

With improved software, both densitometric and video scanners are likely to become still more user-friendly. However, more dramatic improvement in the accuracy and reliability of results is more likely to come from the continual improvements taking place in the quality of adsorbents making up the layer. With the introduction of smaller (4 |im) spherical particle sizes, the quality of separation will improve, hence this will be reflected in the scans and quantitative results obtained with both spectrodensitometry and video scanning.

E. Reich, CAMAG, Muttenz, Switzerland

Copyright © 2000 Academic Press

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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