Spike recovery and detection limit. Species of arsenic found in drinking water include
Chapter 5, Problem 5-18(choose chapter or problem)
Spike recovery and detection limit. Species of arsenic found in drinking water include AsO3 3 (arsenite), AsO4 3 (arsenate), (CH3)2AsO 2 (dimethylarsinate), and (CH3)AsO3 2 (methylarsonate). Pure water containing no arsenic was spiked with 0.40 g arsenate/L. Seven replicate determinations gave 0.39, 0.40, 0.38, 0.41, 0.36, 0.35, and 0.39 g/L.15 Find the mean percent recovery of the spike and the concentration detection limit (g/L). 5
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