Abstract
PIXE (Particle Induced X‐ray Emission) measurements are reported on downcore sediments from Lake Maicuru, a remote lake in the Amazon Basin. We validate the method by comparison of previously obtained wet chemistry/ICP elemental analysis of sediment from four different lakes with elemental analysis obtained by PIXE measurement. Statistical analysis of results from both methods suggests that PIXE analysis works well for heavier elements (Fe, K, and Ca) but poorly on lighter elements (Na, Mg, and P). The sample preparation procedure developed to deal with the hydrophobic nature of the Maicuru sediments is discussed. Changes in the downcore elemental distribution of Ti, Fe, Mn, and Zn in the lake Maicuru sediments are remarkably similar. The control of this parameter is uncertain but is probably due to climatic changes and water availability and weathering. The good comparison of PIXE and ICP for heavier elements and the consistent results on the downcore study suggests that the PIXE technique holds promise ...
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.