This article describes a method for determining blood lead using a reduced-palladium matrix modifier in graphite furnace atomic absorption. The method allows for the use of ashing temperatures as high as 1000°C for blood lead determination. A low background absorbance of 0.060 enables the use of the more sensitive 217.0 nm lead line. Background correction can be easily performed using a deuterium lamp. The high dilution of blood in 0.2% Triton X-100 allows for short drying and ashing times. The use of the L'vov platform is not necessary at high ashing temperatures, as interferences are reduced and atomization is more effective from the tube wall. Carbon buildup does not occur. Zeeman background correction is not required. Accuracy has been established through comparison with a solvent extraction method and mean values from the UK External Quality Assessment Scheme.
