建立了一种检测化妆品中7-二乙氨基-4-甲基香豆素(SWN)的高效液相色谱-三重四级杆串联质谱方法。试验以体积分数0.1%甲酸水-乙腈为流动相,以C18色谱柱分离SWN,流速为0.3 m L/min,正离子模式下进行多反应离子监测(MRM)扫描。结果表明线...建立了一种检测化妆品中7-二乙氨基-4-甲基香豆素(SWN)的高效液相色谱-三重四级杆串联质谱方法。试验以体积分数0.1%甲酸水-乙腈为流动相,以C18色谱柱分离SWN,流速为0.3 m L/min,正离子模式下进行多反应离子监测(MRM)扫描。结果表明线性范围为10~200 ng/m L,化妆品中定量检出限为0.1 mg/kg,加标回收率为83.4%~101.3%。此方法前处理简单、分析准确,适用于各类化妆品中SWN的检测。展开更多
Seven novel fluorescent coumarin derivatives were synthesized from 7-diethylamino-4-chloro-3-formyl-coumarin. The spectra of absorption, excitation and emission were dependent not only on the structures and also on th...Seven novel fluorescent coumarin derivatives were synthesized from 7-diethylamino-4-chloro-3-formyl-coumarin. The spectra of absorption, excitation and emission were dependent not only on the structures and also on the concentration of dyes. The PPP-MO predictions can only be consistent with the spectra in dilute solutions.展开更多
基金Supported by the State Key Laboratory of Dyes and Surfactants Fine Chemicals.
文摘Seven novel fluorescent coumarin derivatives were synthesized from 7-diethylamino-4-chloro-3-formyl-coumarin. The spectra of absorption, excitation and emission were dependent not only on the structures and also on the concentration of dyes. The PPP-MO predictions can only be consistent with the spectra in dilute solutions.
