390 TOTAL ELEMENTS (INCLUDES PHOSPHORUS, ZINC, MANGANESE, IRON, COPPER, MOLYBDENUM, CADMIUM, CHROMIUM, LEAD AND NICKEL)
Soil Totals: Zn, Mn, Fe, Cu, Cd, Cr, Pb, Ni, P, Mo
Microwave acid digestion/dissolution of sample and quantitative determination by AAS and ICP-AES.
Summary: This method determines the concentration of Zn, Mn, Fe, Cu, Cd, Cr, Pb, Ni, P, Mo and additional elements as requested utilizing a nitric acid/hydrogen peroxide closed vessel microwave digestion. Analysis is by Atomic Absorption Spectrometry (AAS) for Zn, Mn, Fe, Cu and Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for other elements. The approximate method detection limit is 1mg/kg for all elements except phosphorus (0.001%).
Sah, R. N. and Miller, R. O. 1992. Spontaneous reaction for acid dissolution of biological tissues in closed vessels. Anal. Chem. 64:230-233.