Consider the following data from the analysis of mercury using cold vapor atomic a spectrometry: Concentration (ppm) 10.0 1.00 0.000 No. of replicate 15 15 20 measurements Mean of S 9.95 1.15 0.0124

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1. Consider the following data from the analysis of mercury using cold vapor atomic absorption
spectrometry:
Concentration (ppm)
10.0
1.00
0.000
No.
of
replicate 15
15
20
measurements
Mean of S
9.95
1.15
0.0124
Standard deviation of 0.12
0.030
0.0075
the measurement, s
The calibration data yielded the following equation:
S= 1.09CHE + 0.298
Where CHg is the concentration in ppm of Hg and S is the relative intensity of the emission line of
Hg. Calculate for the following:
a. Calibration sensitivity
b. Analytical sensitivity at 10.0 and 1.00 ppm of Hg; and
С.
Detection limit
Transcribed Image Text:1. Consider the following data from the analysis of mercury using cold vapor atomic absorption spectrometry: Concentration (ppm) 10.0 1.00 0.000 No. of replicate 15 15 20 measurements Mean of S 9.95 1.15 0.0124 Standard deviation of 0.12 0.030 0.0075 the measurement, s The calibration data yielded the following equation: S= 1.09CHE + 0.298 Where CHg is the concentration in ppm of Hg and S is the relative intensity of the emission line of Hg. Calculate for the following: a. Calibration sensitivity b. Analytical sensitivity at 10.0 and 1.00 ppm of Hg; and С. Detection limit
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