Reliability of the ICP-AES for trace elements studies of biological materials |
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Authors: | M A Chaudhri P Hannaker |
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Institution: | (1) Department of Medical Physics, Austin Hospital, 3084 Heidelberg (Melbourne), Australia;(2) Department of Geology, University of Melbourne, Melbourne, Australia |
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Abstract: | In order to investigate the reliability of the Inductively Coupled Plasma Atomic Emission Spectrometer (ICP-AES) for trace
element analysis of biological materials, we have carried out extensive investigations on human plasma, using an Applied Research
Laboratory’s ICP-AES. When we aspirated the untreated plasma into the spectrometer, we obtained unreliable and nonreproducible
results. However, when we pretreated the plasma by wet digestion (to destroy all the organic material), we achieved reproducible
and consistent results. It is, therefore, suggested that biological samples should be pretreated, preferably by wet digestion,
before being aspirated into the ICP-AES for analysis. |
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Keywords: | Trace elements analysis human plasma wet digestion Inductively Coupled Plasma Atomic Emission Spectrometer biological material |
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