MUCH industry has been devoted in recent years to methods for locating the position of components separated on paper chromatograms, and claims have been made for many reagents of greater or less ...
IN the amino-acid analysis of biological fluids using paper chromatograms 1, the ninhydrin reaction indicates by means of a purple coloration not only α-amino-acids but also many other types of ...
As the holidays draw near, many of us will hop on a plane to visit friends and family – or just get away from it all. Some will be subjected to a swab at the airport to test clothes and baggage for ...
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