Table 3 Robustness of the analytical method

Column temperature, 15-ppm LOS

39°C, area

40°C, area

41°C, area

%RE

%RSD

1,672,455

1,675,725

1,674,952

−0.097 for 39°C −0.095 for 41°C

0.13 for 39°C 0.12 for 41°C

1,671,846

1,672,374

1,671,854

1,674,985

1,671,377

1,671,853

1,673,917

1,671,377

1,670,988

1,674,992

1,671,377

1,669,852

1,677,866

1,669,455

1,673,479

Wavelength, 15-ppm LOS

243 nm, area

245 nm, area

247 nm, area

%RE

%RSD

1,672,379

1,675,725

1,672,874

−0.093 for 241 nm −0.090 for 245 nm

0.13 for 241 nm 0.06 for 245 nm

1,671,895

1,672,374

1,671,893

1,674,813

1,671,377

1,671,623

1,673,739

1,671,898

1,672,098

1,674,385

1,670,491

1,671,254

1,677,930

1,669,455

1,669,695