Yan QIN, Jing-yan WENG, Ying-ming PANG, et al. Comparative Analysis of Volatile Organic Compounds in Viola yedoensis by Needle Trap,Static Headspace and Hydrodistillation Methods Coupled with GC-MS[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(4): 153-161.
DOI:
Yan QIN, Jing-yan WENG, Ying-ming PANG, et al. Comparative Analysis of Volatile Organic Compounds in Viola yedoensis by Needle Trap,Static Headspace and Hydrodistillation Methods Coupled with GC-MS[J]. Chinese journal of experimental traditional medical formulae, 2019, 25(4): 153-161. DOI: 10.13422/j.cnki.syfjx.20182120.
Comparative Analysis of Volatile Organic Compounds in Viola yedoensis by Needle Trap,Static Headspace and Hydrodistillation Methods Coupled with GC-MS
To systemically investigate the volatile organic compounds (VOCs) of
Viola yedoensis
and to compare the VOCs differences of
V
.
yedoensis
obtained by the needle trap
static headspace and hydrostillation methods.
Method:
2
The needle trap
static headspace and hydrostillation methods coupled with gas chromatography-mass spectrometer (GC-MS) were developed for isolation and identification of the VOCs in
V
.
yedoensis
. The relative content of each component was obtained by peak area normalization with a triple-bed needle packed with Tenax
Carbopack X and Carboxen 1000 sorbents.
Result:
2
The 112 compounds were trapped by using needle trap
mainly moderate volatile components
including aldehydes
ketones
alcohols
monoterpenes
sesquiterpenoids and aromatic compounds. The static headspace and hydrodistillation methods were allowed to obtain 37 (mainly the high-volatile components) and 78 compounds (mainly low-volatile components)
respectively. Only 13 common volatile components were detected in all these three methods.
Conclusion:
2
The results clearly demonstrated that the needle trap method is an alternative method for sampling VOCs of herbs
characterized by fast analysis
simple operation
good enrichment effect and high sensitivity.These three methods for VOCs analysis are complementary for each other.
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