Direct determination of cadmium in blood with a temperature-controlled heated graphite-tube atomizer.
By temperature-controlled heating during the atomization step a selective vaporization between Cd and the matrix is achieved. A final temperature of 830 degrees gives an optimized signal for Cd without too high a background absorption. The sensitivity is 0.1 microg l . (0.01 microg of Cd/100 ml of blood) with a detection limit of 0.6 microg l . (0.06 microg/100 ml of blood).
Lundgren
G
G
Department of Analytical Chemistry, University of Umeå, 901 87 Umeå, Sweden.