Research Article
Online Solid-Phase Extraction LC-MS/MS: A Rapid and Valid Method for the Determination of Perfluorinated Compounds at Sub ng·L−1 Level in Natural Water
Figure 2
PFOS calibration curve in the range from 0.2 to 250 ng·L−1. Dotted blue line represents m/z transition 499 → 80; dotted red line represents m/z transition 499 → 99.