Species of arsenic found in drinking water include AsO33- (arsenite), AsO43- (arsenate), (CH3)2AsO2- (dimethylarsinate), and (CH3)AsO32- (methylarsonate). Pure water containing no arsenic was spiked with 0.40 µg arsenate/L. Seven replicate determinations gave 0.35, 0.35, 0.40, 0.36, 0.39, 0.37, and 0.36 µg/L.
a)Find the mean.µg/L
Find the standard deviation.µg/L
Find the mean percent recovery of the spike.%
(b) Find the concentration detection limit.µg/L
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Species of arsenic found in drinking water include AsO33- (arsenite), AsO43- (arsenate), (CH3)2AsO2- (dimethylarsinate), and (CH3)AsO32-...