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- W1010489865 abstract "建立了高效液相色谱-质谱法测定细胞样品中多巴胺(DA)、1-甲基-6,7-二羟基-1,2,3,4-四氢异喹啉(Sal)和N-甲基-6,7-二羟基-1,2,3,4-四氢异喹啉(NMSal)含量的检测方法。细胞样品经超声破碎、离心取上清、1mol/L高氯酸溶液除蛋白并再次离心取上清后,用高效液相色谱-质谱测定,选择母子离子对多离子反应监测(MRM),内标法定量。采用DiscoveryHS F5柱(150mm×2.1mm,3μm);流动相为5mmol/L甲酸铵缓冲溶液(pH=3.0)-甲醇(80∶20,体积比)。DA、Sal和NMSal在0.5~100μg/L范围内线性关系良好(r〉0.9995),检出限分别为0.20、0.34、0.33μg/L,日内和日间精密度(以相对标准偏差表示,RSD)均低于8%,回收率分别为91.4%~109.6%、87.4%~109.7%、88.0%~102.7%。用该方法检测经H2O2诱导的神经母细胞瘤细胞SH-SY5Y,发现DA和Sal的含量与对照组相比都有显著增加。方法选择性好,灵敏度高,适用于测定细胞样品中DA、Sal和NMSal的含量的相关研究。" @default.
- W1010489865 created "2016-06-24" @default.
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- W1010489865 date "2010-01-01" @default.
- W1010489865 modified "2023-09-24" @default.
- W1010489865 title "细胞中多巴胺及儿茶酚胺异喹啉类物质的HPLC-MS/MS检测" @default.
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