UPLC-MS/MS를 이용한 소변 시료 중 내분비계 교란물질 27종 동시분석법 확립
Simultaneous Analysis Method for 27 Endocrine Disrupting Chemicals in Human Urine using UPLC-MS/MS
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초록
내분비 교란 화학물질(EDCs)은 생체 외부로부터 유입되어 인체의 내분비 기관 내에서 호르몬 작용을 교란시키는 화합물이다. 파라벤, 벤조페논, 비스페놀, 프탈레이트 등이 대표적이며, 현재 광범위한 분야에서 사용되고 있다. 하지만 이들에게 지속적으로 노출되면 혈당조절, 생식, 대사, 신경계 발달, 임신, 출산, 성장 등에 부정적인 영향을 끼칠 수 있다. 본 연구에서는 EDCs의 노출정도를 파악하기 위하여 인체시료(소변)를 liquid-liquid-extraction을 사용하여 전처리한 뒤 UPLC-MS/MS로 효과적이고 빠르게 분석하였다. 이와 같이 분석조건을 확립하고, 분석법의 유효성 검증을 통해 동시분석법의 신뢰도를 평가하였다. 결과는 정확도가 75.28~122.36%, 정밀도가 2.16~22.74%의 수치를 보였다. 본 연구에서 확립된 분석법은 추후 인체시료 중 EDCs의 노출을 평가하고 모니터링할 수 있는 연구의 방법론으로 이용될 수 있을 것이다.
Abstract
Endocrine disrupting chemicals (EDCs) are compounds that come from outside the body and disrupt hormone action within the body's endocrine system. Examples include parabens, benzophenones, bisphenols, and phthalates, which are currently used in a wide range of applications. However, continuous exposure to them can have negative effects on glycemic control, reproduction, metabolism, nervous system development, pregnancy, childbirth, and growth. In this study, human samples (urine) were pretreated using liquid-liquid-extraction to determine the exposure level of EDCs and then analyzed effectively and rapidly by UPLC-MS/MS. In this way, the analytical conditions were established and the reliability of the simultaneous analysis method was evaluated through method validation. The results showed that the accuracy ranged from 75.28 to 122.36% and the precision ranged from 2.16 to 22.74%. The analytical method established in this study can be used as a methodology for future studies to evaluate and monitor the exposure of EDCs in human samples.
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