VX Spike (pg/ml) |
VX Peak Area |
0 |
7,989 |
5 |
8,952 |
10 |
20,885 |
15 |
22,318 |
20 |
28,068 |
30 |
46,734 |
Determine the amount of remaining VX in the chemically neutralized batch, in units of ppb (pg/ml). Make a plot of the data and the standard addition curve. Clearly show your work.
VX Spike (pg/ml) |
IS Peak Area |
VX Peak Area |
0 |
28,028 |
1,170 |
5 |
29,149 |
3,888 |
10 |
28,449 |
10,732 |
15 |
29,412 |
16,589 |
20 |
28,972 |
21,049 |
30 |
29,186 |
33,457 |
The lab then used this internal standard calibration data to analyze a plant sample prepared with the same amount of added internal standard. The analysis of this plant sample yielded a VX peak area of 25,345 and an internal standard peak area of 28,523.
Set up an internal standard calibration curve, plot it, show all regression calculations, and determine the amount of VX in the plant sample.