Paper Electrophoresis

It is possible to trace the development of paper elec-trophoresis back to the work of Konig, beginning in 1937 with a publication in Portugeuse. However, this work attracted little interest at the time and it was the

Figure 6 Separation, by ascending paper chromatography, of a series of ink samples (in duplicate). Key: RB, royal blue; Bk, black; G, green; Br, brown; Sc, scarlet; O, origin; SF, solvent front. Solvent system butan-1-ol-acetic acid-water (6:1.5:2.5) with Whatman no. 1 paper.

later work of Wieland and Fischer on amino acids in 1948 and Durram on serum proteins (1949, 1950) that attracted the attention of the scientific community. Some measure of the importance of the technique in its heyday may be gained from the observation in a volume on paper chromatography and electrophoresis published in 1957 that 'more than 2000 papers dealing with the subject of zone electrophoresis have appeared. Over 90% of these have dealt with paper electrophoresis'. Faced with such apparent success, it is possible to forgive the enthusiasm of the authors of a subsequent manual, published in 1977, on the subject who felt able to say that: 'In fact, it can be truly said that the history of paper electrophoresis still lies before it'. In fact, as with paper chromatography, this type of electrophoresis is now considered by most workers to be entirely obsolete.

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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