Analytical Science and Technology (분석과학)

The Korean Society of Analytical Sciences (한국분석과학회)
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Simultaneous analysis of β-lactam antibiotics in surface water

하천수중 잔류 베타-락탐계 항생제의 동시분석법

  • 허민정 (경기대학교 자연과학대학 화학과) ;
  • 명승운 (경기대학교 자연과학대학 화학과)
  • Received : 2010.02.17
  • Accepted : 2010.03.31
  • Published : 2010.04.25
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Abstract

An effective method for the simultaneous analysis of ${\beta}$-lactams from surface water was established. After solid-phase extraction with HLB (Hydrophilic Lipohilic Balance) cartridge at pH 2, seven ${\beta}$-lactams (amoxicillin, ampicillin, penicillin G, cefaclor, cefadroxil, cefatrizine and cephradine) were determined using LC/ESI-MS/MS. In this newly established method, correlation coefficients ($r^2$) of calibration curves for seven ${\beta}$-lactams in blank surface water appeared to be 0.9911~0.9995 in the concentration range of 0.01~1.0 ng/mL. The limits of detection (LODs) and the limits of quantificaiton (LOQs) in spiked surface water were shown to be 0.0003~0.0234 ng/mL and 0.0046~0.0778 ng/mL, respectively. The developed method is believed to serve as a rapid and reliable method for the qualitative and quantitative analysis of residual ${\beta}$-lactam antibiotics from aquatic environment.

환경 시료중에 잔류하는 베타-락탐계 항생제를 동시에 추출하는 방법을 확립하였다. pH 2 에서 HLB 고체상을 사용하여 추출 및 정제한 후, 7종의 베타-락탐계 항생제(amoxicillin, ampicillin, penicillin G, cefaclor, cefadroxil, cefatrizine 및 cephradine)를 LC/ESI-MS/MS를 사용하여 동시에 분석하였다. 새롭게 확립된 분석법은 하천수중에서 베타-락탐계 항생제의 농도가 0.01~1.0 ng/mL일 때 정량을 위한 검정곡선의 상관계수($r^2$)가 0.9911~0.9995 범위로써 우수한 직선성을 나타내었다. 바탕하천수로부터 구한 검출한계(LOD)와 정량한계(LOQ)는 각각 0.0003~0.0234 ng/mL 와 0.0046~0.0778 ng/mL이었다. 이 분석방법은 물 환경중에 잔류하는 베타-락탐계 항생제를 정성 정량하는데 빠르고 신뢰할 만한 방법이 될 것이다.

Keywords

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