(Solved): The following data is produced by an atomic absorption spectrometer. Repeat measurements from the ...

The following data is produced by an atomic absorption spectrometer. Repeat measurements from the blank gave the following absorbance readings: \( 0.001,0.002,0.003 \). \( 0.002,0.001,0.004 . \) Generate the least squares best fit to the Absorbance \( v s \) concentration and answer the following questions. a. What is the calibration sensitivity of the spectrometer? b. If a sample measured 5 times gave an average absorbance of \( 0.139 \), what is the concentration of lead \( (\mathrm{Pb}) \) expressed in ppm and its standard error? c. What is the limit of detection?