Help me answer 9. Thank u! 3:38 AM Wed Oct 14* 60%a learn-ap-southeast-1-prod-fleet02-xythos.s3.ap-southeast-1.amazonaws.comSignal, nA5.05.05.24.24.66.04.9Reagent blanks gave the following values:Blank1234567Signal, nA1.42.21.70.90.41.50.7The slope of the calibration curve for higher concentrations is m =0.229 nA/µM.(a) Find the signal detection limit and the minimum detectable concentration.(b) What is the concentration of analyte in a sample that gave a signal of 7.0 nA. [2.9; 7.3; 25.0]8.Low concentrations of EDTA near the detection limit gave the following dimensionless instrument readings:ReplicateReading123456789.10175104164193131189155133151176Ten blanks had a mean reading of 45.0. The slope of the calibration curve is 1.75 x 10° M-1. Estimate thesignal and concentration detection limits and the lower limit of quantitation of EDTA. [129; 4.8 x 10-3; 1.6 x 10-"]9.An analysis of the calibration data for the determination of lead based upon its flame emission spectrum yielded anequation: S = 1.12C + 0.312 where C is the Pb concn in ppm and S is a measure of the relative emission intensity.The following replicate data were obtained:Concentration, ppmNumber of replicatesMean value of SStandard deviation10.01011.620.151.00101.120.025240.02960.0082Calculate (a) the calibration sensitivity and (b) the detection limit. [1.12; 0.022]

Sensitivity: Indicates the response of the instrument to changes in analyte concentration or a…

An analysis of the calibration data for the determination of lead based upon its flame emission spectrum yielded an equation: S = 1.12C + 0.312 where C is the Pb concn in ppm and S is a measure of the relative emission intensity. The following replicate data were obtained: Concentration, ppm Number of replicates Mean value of S Standard deviation 10.0 10 11.62 0.15 1.00 10 1.12 0.025 24 0.0296 0.0082 Calculate (a) the calibration sensitivity and (b) the detection limit. [1.12; 0.022]

An analysis of the calibration data for the determination of lead based upon its flame emission spectrum yielded an equation: S = 1.12C + 0.312 where C is the Pb concn in ppm and S is a measure of the relative emission intensity. The following replicate data were obtained: Concentration, ppm Number of replicates Mean value of S Standard deviation 10.0 10 11.62 0.15 1.00 10 1.12 0.025 24 0.0296 0.0082 Calculate (a) the calibration sensitivity and (b) the detection limit. [1.12; 0.022]

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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