[also available: Al, Ba, Cd, Cr, Co, Pb, Mo, Ni, V]
This method quantitatively determines the concentration of B, Ca, Cu, Fe, Mg, Mn, P, K, Na, S and Zn 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 closed vessel digestion/dissolution of the sample. The method has detection limits ranging from 0.5 ppm to 0.01 %.
Questions concerning limited sample size can be answered by the UC Davis Analytical Laboratory.
Meyer, G. A. and Keliher, P. N. 1992. An overview of analysis by inductively coupled plasma-atomic emission spectrometry. pp. 473-516. In: A. Montaser and D.W. Golightly (ed.). Inductively coupled plasmas in analytical atomic spectrometry. VCH Publishers, New York, NY.
Sah, R. N. and Miller, R. O. 1992. Spontaneous reaction for acid dissolution of biological tissues in closed vessels. Anal. Chem. 64:230-233.