DETERMINATION OF BROMINE AND IODINE IN FOUR MARINE SEDIMENT REFERENCE SAMPLES BY ENERGY-DISPERSIVE X-RAY FLUORESCENCE SPECTROMETRY |
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| Authors: | David H DOFF |
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| Institution: | Department of Geology, Trinity College, Dublin 2, Ireland |
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| Abstract: | The concentrations of bromine and iodine in the USGS marine mud MAG-1, the NRCC marine sediments BCSS-1 and MESS-1, and the NBS estuarine sediment SRM 1646 have been determined by energy-dispersive x-ray fluorescence spectrometry. Matrix and intermediate thickness effects were overcome by standard additions to constant weights of each sample. 3-sigma detection limits are 6 ppm Br and 24 ppm I. There is a need for many more analysts to report their results before "usable values'can be established for these elements in marine sediment reference malterials. |
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