X-ray fluorescent spectroscopy with a focused X-ray beam collimated by a glass capillary guide tube and element mapping of biological samples

Several research groups developed X-ray fluorescent spectroscopic microanalysis systems using focused X-ray beams. Typical examples are reviewed for these systems using conventional and synchrotron radiation light source. Details of the system developed by the present authors are additionally shown. Applications for biological samples done by the present authors are also shown. Focused X-ray beam by a glass capillary guide tube method is useful for non-destructive real-time monitoring of elemental distribution of plants. (Copyright (c) 1999 Elsevier Science B.V., Amsterdam. All rights reserved.)