10. A fish kill was reported in a river near a manufacturing plant. The Lead levels tested in pooled tissue samples from Site A and Site B. Answer the following: a. What should be the appropriate spectroscopic technique to check the Lead co b. Make a calibration curve. Calculate the actual concentration of the standards recovery. c. Calculate the Lead concentration and determine if the values are lethal or not Std Pb conc abs Actual conc% ppm of std recovery 0.000 0.000 0.000 0.000 0.000 0.050 0.015 0.016 0.016 0.016 0.100 0.034 0.032 0.031 0.034 0.150 0.054 0.055 0.053 0.053 0.200 0.070 0.074 0.078 0.070 0.250 0.081 0.081 0.086 0.086 QC 0.150 0.053 0.052 0.051 0.052 Samples: Unknown Mean Dilution conc. Final Concentration Factor 100xA 1008 20xA 20x8 10XA 108 0.057 0.058 0.056 0.066 0.064 0.066 0.393 0.398 0.391 0.405 0.405 0.406 0.708 0.705 0.710 0.668 0.673 0.688

10. A fish kill was reported in a river near a manufacturing plant. The Lead levels tested in pooled tissue samples from Site A and Site B. Answer the following: a. What should be the appropriate spectroscopic technique to check the Lead co b. Make a calibration curve. Calculate the actual concentration of the standards recovery. c. Calculate the Lead concentration and determine if the values are lethal or not Std Pb conc abs Actual conc% ppm of std recovery 0.000 0.000 0.000 0.000 0.000 0.050 0.015 0.016 0.016 0.016 0.100 0.034 0.032 0.031 0.034 0.150 0.054 0.055 0.053 0.053 0.200 0.070 0.074 0.078 0.070 0.250 0.081 0.081 0.086 0.086 QC 0.150 0.053 0.052 0.051 0.052 Samples: Unknown Mean Dilution conc. Final Concentration Factor 100xA 1008 20xA 20x8 10XA 108 0.057 0.058 0.056 0.066 0.064 0.066 0.393 0.398 0.391 0.405 0.405 0.406 0.708 0.705 0.710 0.668 0.673 0.688

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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10. A fish kill was reported in a river near a manufacturing plant. The Lead levels were
tested in pooled tissue samples from Site A and Site B. Answer the following:
a. What should be the appropriate spectroscopic technique to check the Lead content?
b. Make a calibration curve. Calculate the actual concentration of the standards and %
recovery.
c. Calculate the Lead concentration and determine if the values are lethal or not.
Std Pb
conc
abs
Actual conc%
ppm
of std
recovery
0.000
0.000 0.000 0.000
0.000
0.050
0.015 0.016 0.016 0.016
0.100 0.034 0.032 0.031 0.034
0.150 0.054 0.055 0.053 0.053
0.200 0.070 0.074 0.078 0.070
0.250 0.081 0.081 0.086 0.086
QC
0.150 0.053 0.052 0.051 0.052
Samples:
Unknown
Mean Dilution conc. Final Concentration
Factor
100xA
1008
20xA
20x8
10XA
108
0.057 0.058 0.056
0.066 0.064 0.066
0.393 0.398 0.391
0.405 0.405 0.406
0.708 0.705 0.710
0.668 0.673 0.688

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