An ninh quốc phòngmanager2020-07-17T15:52:03+00:00 A New Approach to the Analysis of Chlorinated Paraffins by Gas Chromatography Quadrupole Time‑of-Flight Mass Spectrometry Analysis of Sulfur Compounds Using On-line and Off-line TD–GC Analysis of Per/Polyfluoroalkyl Substances in Water Using an Agilent 6470 Triple Quadrupole LC/MS