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[求助] 食品中维生素D的测定 液相色谱-串联质谱法

用液质联用检测维生素,标曲测试中,维生素D2定性子离子147总是出双峰,且双峰中对应D2的峰面积和响应很小,信噪比也很小,标曲浓度越小双峰越严重,大浓度好些,但拖尾。(标曲0.01ug/ml,0.02ug/ml,0.05ug/ml,0.1ug/ml,0.15ug/ml,0.2ug/ml)请各位大佬指教

食品中维生素D的测定 液相色谱-串联质谱法


食品中维生素D的测定 液相色谱-串联质谱法-1


食品中维生素D的测定 液相色谱-串联质谱法-2


食品中维生素D的测定 液相色谱-串联质谱法-3


食品中维生素D的测定 液相色谱-串联质谱法-4


食品中维生素D的测定 液相色谱-串联质谱法-5

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