(Solved): In spectrophotometry, the concentration of analyte is measured by its absorbance of light. Nine re ...

In spectrophotometry, the concentration of analyte is measured by its absorbance of light. Nine reagent blanks were also measured and gave values of 0.0006, 0.0012, 0.0022, 0.0005, 0.0016, 0.0008, 0.0017, 0.0010, and 0.0009. (a) Find the minimum detectable signal. (b) A calibration curve was conducted using a series of standard solutions. The concentrations and the absorbance of the standards are listed in the following table. Absorbance is a dimensionless quantity. Find the slope of the calibration curve (including the unit). (c) Find the concentration detection limit. conc. (ppb) Absorbance 0.01 0.0078 0.10 0.0880 0.50 0.4467 1.00 0.8980 2.50 1.8770