Pyo, Heesoo 2024-01-12T18:07:09Z 2024-01-12T18:07:09Z 2021-09-29 https://pubs.kist.re.kr/handle/201004/93520 English acid herbicides 2,4-Dichlorophenoxyacetic acid 2,4,5-Trichlorophenoxyacetic acid gas chromatography-tandem mass spectrometry derivatives Derivatizations of phenoxyacetic acids in environment using GC-MSMS Conference 2 한국질량분석학회 한국질량분석학회 KO