Analysis of Highly Mineralized Aqueous Solutions by ICP-AES

EPA methods 200.7 and 6010 specify ICP; however, analysis of the major components may involve dilution of off-scale peaks, making the analysis more difficult. This work demonstrates a method that uses low-sensitivity analytical lines for the high-concentration major components and high-sensitivity analytical lines for the low-concentration trace components. This eliminates the need for multiple dilutions to get major elements on-scale.

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