Page 26 - Application Notebook - PFAS Analysis

SSI-LCMS-102

Figure 3: Chromatograms for all new compounds in EPA 537.1 at a representative MDL study

Area
Area
HFPO-DA
2.200e6 y = 23858.38x + 0.0000000 PFOS
R² = 0.9972737 R = 0.9986359 5.500e5 y = 5927.694x + 0.0000000
R² = 0.9956820 R = 0.9978387
2.000e6 Curve Fit: Default (Linear) 5.000e5
Weighting: Default (1/C) Curve Fit: Default (Linear)
1.800e6 Zero: Default (Force Through) 4.500e5 Weighting: Default (1/C)
Zero: Default (Force Through)
Mean RF: 2.397679e+004
1.600e6
SD RF: 1.14135e+003 4.000e5 Mean RF: 5.92703e+003
%RSD: 4.760227 SD RF: 5.552132e+002
1.400e6 3.500e5
%RSD: 9.367478
1.200e6 3.000e5
1.000e6 2.500e5
8.000e5 2.000e5

6.000e5 1.500e5
4.000e5 1.000e5
2.000e5 5.000e4

0.000e0 0.000e0
0 20 40 60 80 100 0 20 40 60 80 100
Conc. () Conc. ()
Figure 4: MRM chromatogram (for 80 ppt sample concentration) and calibration curve for HFPO-DA and PFOS using LCMS-8045