An analyst determines the Cl^- content of rain water with ion chromatography. The data for the calibration line in the range 5 to 50 milli equivalents per liter (mEq/L) is shown in the table below. Additionally, a blank sample was analysed 5 times and the following results obtained: 1.1, 0.5, 0.1, 0.9 and 1.2 ppm Ct Calculate the detection limit (DL) for the method with a 98.3% confidence level. Use ALL data and show equations

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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
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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An analyst determines the Cl^- content of rain water with ion chromatography. The data for the calibration line in the range 5 to 50 milli equivalents per liter (mEq/L) is shown in the table below. Additionally, a blank sample was analysed 5 times and the following results obtained: 1.1, 0.5, 0.1, 0.9 and 1.2 ppm Ct Calculate the detection limit (DL) for the method with a 98.3% confidence level. Use ALL data and show equations

+
1
ASY
[CH] (mEq/L)
Response
> 80
C
De 5
%
T
L
G
2
OLD
6
Y
5
18.0
H
&
7
U
J
10
29.1
* 00
8
8
F9
K
20
68.4
Con
(
9
F10
30
87.3
L
26 H D00
DI
040 3
)
O
40
129.8
P
F12
{
50
100.8
[
PrtSc
11
D
V
+ II
Insert
}
1
Transcribed Image Text:+ 1 ASY [CH] (mEq/L) Response > 80 C De 5 % T L G 2 OLD 6 Y 5 18.0 H & 7 U J 10 29.1 * 00 8 8 F9 K 20 68.4 Con ( 9 F10 30 87.3 L 26 H D00 DI 040 3 ) O 40 129.8 P F12 { 50 100.8 [ PrtSc 11 D V + II Insert } 1
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