Bio:
Email: dhx@ghs.cn
党昊星(1995—),男,硕士,助理工程师,主要从事科研管理工作以及化工品的定性定量研究;dhx@ghs.cn
建立了超高效液相色谱-串联质谱法同时测定化妆品中莫西沙星、双氟沙星、沙拉沙星等10种喹诺酮类禁用物质的方法。采用ACQUITY UPLC BEH C18色谱柱(2.1 mm×50 mm,1.7 μm)为固定相,甲醇-0.2%(体积分数)甲酸溶液为流动相进行梯度洗脱,以电喷雾正离子源模式(ESI+)和多反应监测(MRM)模式进行质谱分析。结果表明,10种喹诺酮类药物的质量浓度在5~100 g/L内与峰面积呈线性关系,相关系数为0.998 2~ 0.999 8,加标回收率为100.00%~116.43%(n=3),相对标准偏差为1.77%~5.90%(n=6),检出限为0.002 53~0.025 5 mg/kg,定量限为0.008 44~0.085 2 mg/kg。
A method for the simultaneous determination of 10 quinolones such as moxifloxacin, difloxacin, sarafloxacin in cosmetics using ultra performance liquid chromatography-tandem mass spectrometry is established. ACQUITY UPLC BEH C18 column (2.1 mm×50 mm, 1.7 μm) as stationary phase, methanol-0.2% (volume fraction) formic acid solution as mobile phase is gradient eluted. Mass spectrometry is analyzed by electrospray positive ionization source (ESI+) mode and multiple reaction monitoring (MRM) mode. The results show that the mass concentration of 10 quinolones has a linear relationship with the peak area in the range of 5-100 g/L, the correlation coefficient is 0.998 2-0.999 8, the recovery is 100.00%-116.43% (n = 3), the relative standard deviation is 1.77%-5.90% (n = 6), the detection limit is 0.002 53-0.025 5 mg/kg, and the quantitative limit is 0.008 44 ~ 0.085 2 mg/kg.
HE X, WANG G N, YANG K, et al. Magnetic graphene dispersive solid phase extraction combining high performance liquid chromatography for determination of fluoroquinolones in foods[J]. Food Chemistry, 2017, 221: 1226-1231.
TANG Y J, XU J Q, CHEN L, et al. Rapid in vivo determination of fluoroquinolones in cultured puffer fish (Takifugu obscurus) muscle by solid-phase microextraction coupled with liquid chromatography-tandem mass spectrometry[J]. Talanta, 2017, 175: 550-556.
MONTESANO C, CURINI R, SERGI M, et al. Determination of marbofloxacin in plasma and synovial fluid by ultrafiltration followed by HPLC-MS/MS[J]. Journal of Pharmaceutical and Biomedical Analysis, 2016, 123: 31-36.