Research Article

Development of a Method for Rapid Determination of Morpholine in Juices and Drugs by Gas Chromatography-Mass Spectrometry

Table 1

Comparison of the proposed method with previously published methods.

SampleThe test process of sampleLOQReference
Sample pretreatmentDerivatization reactionDetermination

Apple juice and ibuprofenCentrifugation and filtrationSodium nitrite under acidic conditionGas chromatography-mass spectrometry (GC-MS)24.4 g·L−1This work
Steam condensateChromatography with multimode inlet and flame ionization detection (GC-MI-FID)100 g·L−1[15]
Citrus and apples15 mL 1% acetic acid in methanolHydrophilic interaction liquid chromatography with electrospray ionization and tandem mass spectrometry (HILIC-ESI-MS/MS)10 g·kg−1[22]
Citrus and applesDispersive micro-solid-phase extraction (DMSPE)Ultrahigh performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS)5 g·kg−1[14]