98.1% of Au in 10% aqua regia medium is adsorbed by polyfoam in kine- tic state. After ignition of the foam, the ash is subjected to spectrographic de- termination. Beer's law is obeyed for 5-1000ηg of gold. The C. V. of samples containing 1.3-27.2ppb of Au are 24.4-25.4 % (n=11).The detection limit of gold is 2ηg.
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熊昭春,雷秀珍,1984,岩石土壤中痕量金泡塑富集光谱测定[J].岩石矿物学杂志,3(4):364~367.,1984,Spectroacophic Determination of Trace Gold in Rocks and Soils with Polyurethane Foam[J]. Acta Petrologica et Mineralogica,3(4):364~367.
