An equipment that combines a gas chromatographer and a mass spectrometer.
1 Comparison with GC - MS raised questions about the accuracy of the different assays.
2 The components were quantitatively determined with normalization method, and identified by GC - MS .
3 In addition, one individual's oral fluid specimens were also analyzed by GC - MS .
4 The elucidation of the chemical structure was performed using GC - MS and NMR techniques.
5 GC - MS showed that the volatile compounds of instant vermicelli seasonings were significantly different.
6 The dried sample was derivatized to its TMS ester and analyzed using GC - MS .
7 The chemical composition of essential oil was analysed by GC - MS .
8 The chemical composition of essential oil was analyzed by GC - MS .
9 Level of personal exposure to PAHs was measured using GC - MS .
10 These oils obtained were analyzed by GC - MS (identification and determination of metabolites).
11 The GC - MS method was successfully validated and applied to the quantitation of A. dahurica.
12 The resulting compound derivatives were analyzed by GC - MS in the methane-Cl and El modes.
13 GC - MS analysis showed 20 major peaks whose chemical structures were docked as the CviR ligand.
14 E-nose determination and GC - MS statistical analysis had similar results.
15 Volatile components were analyzed by GC - MS in shoots of A. umbelliformis 6 months after inoculation.
16 Solid-phase extraction isolated and concentrated analytes prior to GC - MS .
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