An amplification method has been described for the determination of ch
romium in low alloy steel samples. The well-known Leipert reaction has
been coupled with a precipitate exchange reaction between lead iodate
and chromium(III)-EDTA complex for amplification. Chromium is determi
ned indirectly by determinig the liberated iodine and the detection of
chromium is amplified twelvefold. (C) 1996 Academic Press, Inc.