Find the mean emission intensity values for the 5.0 and 10.0 ng/mL standards and for the serum sample. Find the standard deviations of these values. а. b. Find the least squares best line through the points at cNa sensitivity and the analytical sensitivity. Find the detection limit for k values of 2 and 3. To what level of confidence do these correspond? 0.0, 5.0 and 10.0 ng/mL. Find the calibration с.

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Atomic emission measurements were made to determine sodium in a blood serum sample. The following emission
intensities were obtained for standards of 5.0 and 10.0 ng/mL and for the serum sample. All emission intensities were
corrected for any blank emission.
deviation of 0.0071 (arbitrary units).
The mean value for the blank intensity (CNa = 0.0) was 0.000 with a standard
CNa, ng/mL
5.0
Emission Intensity
0.51
5.0
5.0
0.49
0.48
10.0
1.02
10.0
1.00
10.0
0.99
Serum
0.71
Serum
0.77
Serum
0.78
Find the mean emission intensity values for the 5.0 and 10.0 ng/mL standards and for the serum sample. Find
the standard deviations of these values.
а.
b. Find the least squares best line through the points at cNa =
sensitivity and the analytical sensitivity.
Find the detection limit for k values of 2 and 3. To what level of confidence do these correspond?
d. Find the concentration of Na in the serum sample and the standard deviation in the concentration.
0.0, 5.0 and 10.0 ng/mL. Find the calibration
с.
Transcribed Image Text:Atomic emission measurements were made to determine sodium in a blood serum sample. The following emission intensities were obtained for standards of 5.0 and 10.0 ng/mL and for the serum sample. All emission intensities were corrected for any blank emission. deviation of 0.0071 (arbitrary units). The mean value for the blank intensity (CNa = 0.0) was 0.000 with a standard CNa, ng/mL 5.0 Emission Intensity 0.51 5.0 5.0 0.49 0.48 10.0 1.02 10.0 1.00 10.0 0.99 Serum 0.71 Serum 0.77 Serum 0.78 Find the mean emission intensity values for the 5.0 and 10.0 ng/mL standards and for the serum sample. Find the standard deviations of these values. а. b. Find the least squares best line through the points at cNa = sensitivity and the analytical sensitivity. Find the detection limit for k values of 2 and 3. To what level of confidence do these correspond? d. Find the concentration of Na in the serum sample and the standard deviation in the concentration. 0.0, 5.0 and 10.0 ng/mL. Find the calibration с.
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