Derivatization of Acidic Herbicides with Selected Tetraalkyl Ammonium and Trimethyl Sulfonium Hydroxides for Their GC Analysis
作者： M. Rompa , E. Kremer , B. Zygmunt
DOI: 10.1081/AL-200040368
关键词:
摘要: Abstract This work presents studies on phenoxy acid [MCPP—2‐(4‐chloro‐2‐methylphenoxy)propanoic acid; MCPA—(4‐chloro‐2‐methylphenoxy)acetic 2,4‐D‐2,4‐dichlorophenoxyaceticacid; 2,4,5‐T‐(2,4,5‐trichlorophenoxy)acetic acid] and phenolic [PCP—pentachlorophenol, dinoterb‐2‐(1,1‐dimethylethyl)‐4,6‐dinitrophenol, dinoseb‐2‐(1‐methylpropyl)‐4,6‐dinitrophenol] herbicides with derivatization aimed at their gas chromatographic determination. The was performed in an injection port of a chromatograph trimethylphenylammonium hydroxide (TMPH), trimethylsulfonium (TMSH), tetramethylammonium (TMAH). effects temperature the port, reaction medium (solvent), reagent excess yield were investigated. TMPH 20‐fold methanol selected for analysis. Dichloromethane also found to be appropriate solvent. Repeatability results poor when tert‐butyl methyl ether (MTBE) used as medium.
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