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Abstract
Cd, Cr, Fe and Mn were analyzed by DCP and GFAAS in natural and wastewater spiked samples. A statistic study was realized to probe that both techniques reach comparable results in the intervals: 5–50 μgL−1 for Cd, 10–100 μgL−1 for Cr, 50–500 μgL−1 for Fe, and 10–100 μgL−1 for Mn.
The test shows that the flameless AA technique sensitivity is higher than DCPs, but the last one achieves the legal Spanish allowable limits. According to the amount and kind of samples that are analyzed in the IGME laboratories it can be deduced that DCP being simultaneous technique, one gets more sample throughput in the mentioned intervals.