Abstract
In this article, the Taguchi method is used as a statistical tool for the correct determination of chemical composition in marine sediment samples. Using Taguchi's experimental design technique in the analytical chemistry laboratory, factors such as mass per volume ratio, digestion temperature, digestion time and acids can be isolated to provide centring and variance control in heavy-metal measurements such as Cd and Cr measurement in marine sediments, thus minimizing the effect of noise factors during chemical analysis. A statistical analysis is performed to identify the effect of parameters and their interactions. The expected performance and the cost savings under optimum conditions are calculated. The results are confirmed by further measurements.
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