A technologist at Nespresso is developing a method to determine the amount of caffeine in a new coffee blend. She prepared standards of various concentrations, measured their absorbances and she plotted the data. Use the data table and the plot to determine the best answer, knowing that at 1.00 ppm the S/N = 3 and at 4.00 ppm the S/N = 10 Absorbance vs concentration of Caffeine (ppm) Caffeine (ppm) Abs 1.00 0.060 0.190 2.00 0.080 0.800 3.00 0.135 0.700 4.00 0.600 0.300 5.00 0.400 6.00 0.500 Absorbance 0.500 0.400 0.300 7.00 0.600 0.200 8.00 0.700 0.100 9.00 0.800 0.000 10.0 0.835 0.00 4.00 2.00 11.0 0.840 12.00 10.00 8.00 6.00 Concentration of Caffeine (ppm) 14.00 12.0 0.841 OLOD 4.00 ppm, LOQ = 1.00 ppm, LOL = 12.0 ppm OLOD = 4.00 ppm, LOQ = 12.0 ppm, LOL = 9,00 ppm 11.0 0.840 12.0 0.841 6.00 8.00 10.00 Concentration of Caffeine (ppm) OLOD = 4.00 ppm, LOQ = 1.00 ppm, LOL = 12.0 ppm OLOD = 4.00 ppm, LOQ = 12.0 ppm, LOL = 9.00 ppm OLOD = 1.00 ppm, LOQ = 4.00 ppm, LOL = 9.00 ppm === OLOD = 12.0 ppm, LOQ = 2.00 ppm, LOL = 9.00 ppm OLOD=3.00 ppm, LOQ = 10.0 ppm, LOL = 13.0 ppm Previous Page Next Page