From the Biochemical Laboratory, Harvard Medical School, and the Medical Clinic, Massachusetts General Hospital, Boston. This investigation has been supported by grants from the William W. Wellington ...

THE reagents devised by Girard and Sandulesco 1 for the separation of ketonic substances are widely employed in a variety of fields, especially for the isolation of ketonic steroids. Although the ...

IN a series of experiments carried out on volunteers, a dose of X-rays was given to two small areas of skin separated by a varying width of untreated protected skin, and the reactions produced were ...

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KNAUER introduces three new chiral stationary phases (CSPs), that are typically applied in production or quality control of pharmaceuticals with chiral active ingredients. To select the optimal chiral ...