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.
| Sample | The test process of sample | LOQ | Reference | Sample pretreatment | Derivatization reaction | Determination |
| Apple juice and ibuprofen | Centrifugation and filtration | Sodium nitrite under acidic condition | Gas chromatography-mass spectrometry (GC-MS) | 24.4 g·L−1 | This work | Steam condensate | — | — | Chromatography with multimode inlet and flame ionization detection (GC-MI-FID) | 100 g·L−1 | [15] | Citrus and apples | 15 mL 1% acetic acid in methanol | — | Hydrophilic interaction liquid chromatography with electrospray ionization and tandem mass spectrometry (HILIC-ESI-MS/MS) | 10 g·kg−1 | [22] | Citrus and apples | Dispersive micro-solid-phase extraction (DMSPE) | — | Ultrahigh performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS) | 5 g·kg−1 | [14] |
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