Feiming You

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  • Feiming You
  • Se pu = Chinese journal of chromatography
  • 2015
A sensitive method was developed for the simultaneous determination of six components which included 4, 4'-diaminodiphenylamine sulfate hydrate and 2,4-diaminophenol sulfate, etc. in hair dyes by ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). After extracted by water through ultrasonic extraction, the samples were analyzed by(More)
An easy, sensitive and quick method was established for simultaneously separating and determining stimulant, narcotics and antiestrogen in spiked human urine using gas chromatography-nitrogen phosphorous detection (GC-NPD). The urine sample was preprocessed by liquid-liquid extraction. Tert-butyl methyl ether and N-phenylamine were chosen as extraction(More)
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