Anti-Bacterial Agents - analysis, Thiamphenicol - analogs & derivatives, Half-Life, Chromatography, High Pressure Liquid, Water Pollutants, Chemical - analysis, Drug Residues - analysis, Geologic Sediments - microbiology, Tandem Mass Spectrometry, Spectrometry, Mass, Electrospray Ionization, Thiamphenicol - analysis, Geologic Sediments - analysis, China, Wat...