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目的 建立新型抗血吸虫杂环化合物噁二唑-2-氧化物杂环类似物F-2015-14的超高效液相色谱-四级杆飞行时间质谱(UPLC-QTOF-MS)分析方法.方法 小鼠血浆及组织样品经乙酸乙酯萃取,以C18色谱柱进行色谱分离,再经流动相为10％乙腈-0.1％(体积分数)甲酸溶液,梯度洗脱分离,采用超高效液相色谱-四级杆飞行时间质谱检测F-2015-14.结果 小鼠血浆中F-2015-14在12.5～250 μg/mL范围内线性关系良好,相关系数为0.990,检出限为8.8 μg/mL;小鼠肝匀浆中F-2015-14在12.5～250 μg/mL范围内线性关系良好,相关系数为0.992,检出限为5.6 μg/mL.在加样量为12.5 μg/mL的小鼠血浆和肝匀浆样品中,UPLC-QTOF-MS的准确度和基质效应均在80％～120％,日间、日内精密度均<20％;在加样量为100、200 μg/mL的小鼠血浆和肝匀浆样品中,UPLC-QTOF-MS的准确度和基质效应均在85％～115％,日间、日内精密度均<15％.结论 UPLC-QTOF-MS检测新型抗血吸虫杂环化合物噁二唑-2-氧化物(F-2015-14)具有较好的灵敏度及重复性,为抗血吸虫新药的研发奠定了基础.“,”Objective To develop an ultra-performance liquid chromatography/quadrupole-time of flight mass spectrometry(UPLC-QTOF-MS)method for the determination of an oxadiazole-2-oxide heterocyclic compound F-2015-14.Methods Mouse plasma and liver homogenate specimens were extracted with ethyl acetate and chromatographed on a Waters CORTECS column(C18,1.6μm,2.1 mm×150 mm)by using a mobile phase of 10％acetonitrile-0.1％formic acid with by a volume fractionation by gradient elution.Then,UPLC-QTOF-MS was performed to determine F-2015-14 in mouse plasma and liver homogenate speci-mens.Results The linearity of F-2015-14 in plasma ranged from 12.5 to 250 μg/mL with a correlation coefficient of 0.990 and a detection limit of 8.8 μg/mL.F-2015-14 in liver homogenates ranged from 12.5 to 250 μg/mL.The linearity was good with a cor-relation coefficient of 0.992 and a limit of detection of 5.6 μg/mL.If the concentration of plasma and liver homogenate specimens was 12.5 μg/mL,the accuracy and the matrix effect were 80％to 120％,and the inter-day and intra-day precision was within 20％.If the concentrations of plasma and liver homogenate specimens were 100 μg/mL and 200 μg/mL,the accuracy and the ma-trix effect were 85％to 115％,and the inter-day and intra-day precision was within 15％.Conclusion The UPLC-QTOF-MS es-tablished in this study has a high sensitivity and good reproducibility for the determination of F-2015-14,which provides bases for the development of novel anti-schistosomiasis drugs.