This method quantitatively determines the concentration of P, S, Ca, Mg, K, Na, B, Zn, Mn, Fe, Cu, Mo and a variety of other elements utilizing a nitric acid/hydrogen peroxide microwave digestion and determination by Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES). The methodology utilizes a pressure digestion/dissolution of the sample. The method has detection limits ranging from 0.05 mg/L to 0.5 mg/L. The method is generally reproducible within 8% for all analytes.
Sah, R. N. and Miller, R. O. 1992. Spontaneous reaction for acid dissolution of biological tissues in closed vessels. Anal. Chem. 64:230-233.
Meyer, G. A. and Keliher, P. N. 1992. An overview of analysis by inductively coupled plasma-atomic emission spectrometry. p. 473-516. In: A. Montaser and D.W. Golightly (ed.) Inductively coupled plasmas in analytical atomic spectrometry. VCH Publishers Inc. New York, NY.