Structure of Granules in Helix Aspersa by EXAFS and other Physical Techniques
The hepatopancreas of the common garden snail, Helix aspersa, contains a large number of intracellular granules which in their natural state consist largely of Mg, Ca and phosphates with some water and a small quantity of organic matter. A wide range of environmental metals can be incorporated into these deposits with Mn being the most readily assimilated. The granules have been characterised using a variety of techniques. Since they are amorphous to X-ray diffraction an EXAFS study of the Ca and Mn edges has been undertaken to assess and compare the local structure of the metals in the granules.
KeywordsDifferential Thermal Analysis Synchrotron Radiation Source EXAFS Spectrum Environmental Metal Calcium Pyrophosphate
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