scholarly journals Factors affecting solid phase microextraction (SPME) to concentrate the odorants of Chinese white salted noodles for GC–MS analysis

2007 ◽  
Vol 22 (4) ◽  
pp. 274-279 ◽  
Author(s):  
Li-Yun Lin ◽  
Chiung-Huei Peng ◽  
Hui-Er Wang ◽  
Tsung-Han Wu ◽  
Cheng-Chang Chen ◽  
...  
2019 ◽  
Vol 34 (3) ◽  
pp. 598-606 ◽  
Author(s):  
Peipei Zhou ◽  
Rongjie Zheng ◽  
Wei Zhang ◽  
Wei Liu ◽  
Yanyan Li ◽  
...  

A novel magnetic NiFe2O4-based effervescent tablet-assisted dispersive solid-phase microextraction (MNET-DSPM) was developed for extraction of metal ions prior to ICP-MS.


2020 ◽  
Vol 187 (12) ◽  
Author(s):  
Soleyman Moinfar ◽  
Ali Khodayari ◽  
Shabnam Sohrabnezhad ◽  
Ali Aghaei ◽  
Lazgin Abdi Jamil

2016 ◽  
Vol 8 (7) ◽  
pp. 1699-1704 ◽  
Author(s):  
Yao Xu ◽  
Xia Zhou ◽  
Dayong Zhang ◽  
Zelun Lan ◽  
Yun Zhang ◽  
...  

The purpose of this study was to analyze the relationship between volatile profile variations of malt and its stir-fried forms, so as to sum up odor changes in the stir-frying process.


Separations ◽  
2018 ◽  
Vol 5 (3) ◽  
pp. 45 ◽  
Author(s):  
Kevin Eckert ◽  
David Carter ◽  
Katelynn Perrault

Volatile organic compounds (VOCs) are monitored in numerous fields using several commercially-available sampling options. Sorbent-based sampling techniques, such as solid-phase microextraction (SPME), provide pre-concentration and focusing of VOCs prior to gas chromatography–mass spectrometry (GC–MS) analysis. This study investigated the dynamics of SPME Arrow, which exhibits an increased sorbent phase volume and improved durability compared to traditional SPME fibers. A volatile reference mixture (VRM) and saturated alkanes mix (SAM) were used to investigate optimal parameters for microbiological VOC profiling in combination with GC–MS analysis. Fiber type, extraction time, desorption time, carryover, and reproducibility were characterized, in addition to a comparison with traditional SPME fibers. The developed method was then applied to longitudinal monitoring of Bacillus subtilis cultures, which represents a ubiquitous microbe in medical, forensic, and agricultural applications. The carbon wide range/polydimethylsiloxane (CWR/PDMS) fiber was found to be optimal for the range of expected VOCs in microbiological profiling, and a statistically significant increase in the majority of VOCs monitored was observed. B. subtilis cultures released a total of 25 VOCs of interest, across three different temporal trend categories (produced, consumed, and equilibrated). This work will assist in providing foundational data for the use of SPME Arrow in future microbiological applications.


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