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A Dry Ashing Method for the Determination of Blood Lead using Cathode Ray Polarography: Comparison with a Wet Ashing Technique
  1. A. A. Cernik
  1. Medical Branch, H.M. Factory Inspectorate, Ministry of Labour, London


    A dry ashing method is described for the determination of lead in whole blood. Within the range of 16-200 μg. lead per 100 ml. blood recoveries were 82 to 100%. The method agreed with a standard wet method and is more convenient. Possible sources of error and the uses of the ashing aid are discussed.

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