1. W. McDaniel, U.S. Environmental Protection Agency, Report No. 4-91-010, Method 200.3 Rev 1.0, Sample Preparation Procedure for Spectrochemical Determination of Total Recoverable Elements in Biological Tissues, US EPA, Cincinnati, USA, 1991.
2. J.T. Creed, C.A. Brockhoff and T.D. Martin, U.S. Environmental Protection Agency, Report No. R-94-111, Method 200.8, Rev 5.4, Determination of Trace Elements in Waters and Wastes by Inductively Coupled Plasma – Mass Spectrometry, US EPA, Cincinnati, USA, 1994.
3. J. Creed, M. Td, L. Lobring and J. O’Dell, U.S. Environmental Protection Agency, Report No. R-94-111, Method 200.9 Rev 2.2, Determination of Trace Elements by Stabilized Temperature Graphite Furnace Atomic Absorption, US EPA, Cincinnati, USA, 1994.
4. U.S. Environmental Protection Agency, Report No. SW-846 Ch 3.2, Method 3052 Rev 0, Microwave Assisted Acid Digestion of Siliceous and Organically Based Matrices, US EPA, Cincinnati, USA, 1996.
5. Evaluation of microwave heating digestion and graphite furnace atomic absorption spectrometry with continuum source background correction for the determination of iron, copper and cadmium in brine shrimp