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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

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    Simultaneous analysis of β-lactam antibiotics and β-blockers by LC-MS/MS

    Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
    2016, v.29 no.4, pp.179-185
    https://doi.org/10.5806/AST.2016.29.4.179






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    Abstract

    An effective analytical method has been developed for the determination of β-blockers(atenolol, metoprolol and propranolol) and 6 β-lactams(amoxicillin, penicillin G, cefaclor, cefadroxil, cephalexin and cephradine) in water samples using two different cartridges. The samples were extracted by solid-phase extraction (SPE) with the usage of polymeric hydrophile-lipophile balance(HLB cartridges) and strong cation-exchange mixed-mode polymeric sorbent (MCX cartridges). A XDB-C18 column(1.8 μm; 3.0 mm × 100 mm) was used for the sufficient chromatographic resolution. The calibration curves showed good linearity with high correlation coefficients (>0.995). The method detection limits (MDL) and the limits of quantification(LOQ) were from 1.1 to 3.9 ng/L and from 5 to 13 ng/L, respectively. The method was applied for the determination of the target compounds in tributaries and raw water of the Han River and these were found at N.D. to 0.209 μg/L.

    keywords
    &#x3B2, -blockers, &#x3B2, -lactams antibiotics, SPE, LC-MS/MS


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