Headspace in-tube microextraction of chlorophenols using a capillary inserted 3D-printed electrophoresis unit

Abstract

우리는 액체 plug를 주입한 capillary를 run buffer이자 accepter phase로 사용한 headspace in-tube microextraction (ITME) 용 capillary-inserted 3D-printed electrophoresis unit을 제작하였다. 분석 과정의 간소화를 위하여 이번 실험에서는 전기 영동 과정에서 이용하는 run buffer를 acceptor plug로 사용하였다. Chlorophenol 시료들은 0.1 M HCl에 녹인 뒤 pH 9.8 borate run buffer로 ITME를 통한 10분 추출 결과 12-150배 농축되었다.

We fabricated a capillary-inserted 3D-printed electrophoresis unit for headspace in-tube microextraction (ITME) using a liquid plug inside the separaction capillarty as an acceptor phase. For a simple analysis we chose the run buffer of electrophoresis as the acceptor plug. Chlorophenols were enriched about 12-150 times through a 10-min ITME of a sample acidified by 0.1 M HCl at room temperature using the borate run buffer of pH 9.8 as the acceptor phase.