Willis C Campbell

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A mechanism for the production of atoms during carbon-furnace atomization is presented, based on the reaction MO(s) + C(s) --> CO(g) + M(g) The lowest temperature at which this reaction is thermodynamically feasible has been calculated for 27 elements and is shown to be consistent, for the majority of elements, with the lowest temperatures at which a(More)
A. M. Jayich,1 A. C. Vutha,2 M. T. Hummon,3 J. V. Porto,4 and W. C. Campbell1 1UCLA Department of Physics and Astronomy, Los Angeles, California 90095, USA 2York University, Department of Physics and Astronomy, Toronto, ON M3J 1P3, Canada 3NIST and University of Colorado, Boulder, Boulder, Colorado 80309, USA 4National Institute of Standards and Technology,(More)
A simple and rapid method for the determination of 1-100 ppm of lead in carbonate rocks is described. Dissolution of the rock samples in 10% v v nitric acid is shown to give precise and accurate results even though silicates in the samples remain undissolved. A more time-consuming but complete dissolution of the sample with hydrofluoric acid may be used if(More)
A carbon furnace atomic absorption procedure is described for the determination of cadmium in the livers and kidneys of puffins, fratercula arctica. Samples are dried and weighed and 2 to 100 mg are dissolved in sulphuric and nitric acids. These solutions are analysed directly in the carbon furnace against aqueous standards and provide accurate results in(More)
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