- P-ISSN 1225-0163
- E-ISSN 2288-8985
환경 시료중에 잔류하는 베타-락탐계 항생제를 동시에 추출하는 방법을 확립하였다. pH 2에서 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/mL일때정량을 위한 검정곡선의 상관계수(r2)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 0.0046~0.0778ng/mL이었다. 이 분석방법은 물 환경중에 잔류하는 베타-락탐계 항생제를 정성·정량하는데 빠르고신뢰할 만한 방법이 될 것이다.
An effective method for the simultaneous analysis of β-lactams from surface water was established. After solid-phase extraction with HLB (Hydrophilic Lipohilic Balance) cartridge at pH 2, seven β-lactams (amoxicillin, ampicillin, penicillin G, cefaclor, cefadroxil, cefatrizine and cephradine) were determined using LC/ESI-MS/MS. In this newly established method, correlation coefficients (r2) of calibration curves for seven β-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 β-lactam antibiotics from aquatic environment.