Calibration curve. Figure 21-30 describes graphite furnace atomic absorbance determination of silver within individual Daphnia magna. Calibration
Question:
Calibration curve. Figure 21-30 describes graphite furnace atomic absorbance determination of silver within individual Daphnia magna. Calibration data at 328.068 nn 328.068 nn is shown below.
a. Construct a calibration plot. Is the calibration linear?
b. Fitting data to a quadratic function yields y=-8.079x10-7x2+1.812x10-3 x-0.004 8 y =-8.079 x 10-7x2 + 1.812 x10-3 x - 0.0048 with negligible residuals and R2=0.999 9.R2 = 0.999 9. An unknown sample yields a peak area of 0.598 2. 0.5982. How much AgAg is in the unknown?
Figure 21-30
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Answer a The calibration plot would be a graph of peak ...View the full answer
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Related Book For 
Quantitative Chemical Analysis
ISBN: 9781319164300
10th Edition
Authors: Daniel C. Harris, Charles A. Lucy
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