Tap water is measured for arsenic andfound to have a mean signal of 0.0061.Next, a small amount of Arsenic is spikedinto the tap water such that the new valueis 0.700 ppb higher than before. The meansignal from this new low-levelconcentration is 0.0447, with a standarddeviation of 0.00560. What is the LowerLimit of Quantitation?(Hint: estimate slope as fraction numeratortriangle Y over denominator triangle X endfraction , where triangle Y is the differencebetween the low level spike and the blanksignals; and triangle X is the concentrationchange between the spiked and unspikedsample)

Concept: Lower limit of quantitation: A signal that is 10 times greater than the noise or the…

Tap water is measured for arsenic and found to have a mean signal of 0.0061. Next, a small amount of Arsenic is spiked into the tap water such that the new value is 0.700 ppb higher than before. The mean signal from this new low-level concentration is 0.0447, with a standard

Tap water is measured for arsenic and found to have a mean signal of 0.0061. Next, a small amount of Arsenic is spiked into the tap water such that the new value is 0.700 ppb higher than before. The mean signal from this new low-level concentration is 0.0447, with a standard

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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