Question 5.5: A fourth spectrophotometric method for the quantitative dete...

Modern Analytical Chemistry

A fourth spectrophotometric method for the quantitative determination of the concentration of $Pb²^+$ in blood yields an $S_{samp}$ of 0.712 for a 5.00-mL sample of blood. After spiking the blood sample with 5.00 mL of a 1560-ppb $Pb²^+$ standard, an $S_{spike}$ of 1.546 is measured. Determine the concentration of $Pb²^+$ in the original sample of blood.

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