Application of cup-shaped trilactams for selective extraction of volatile compounds by gas chromatography-mass spectrometry

The Analyst ◽  
2020 ◽  
Vol 145 (20) ◽  
pp. 6668-6676
Author(s):  
Sitanan Sartyoungkul ◽  
Isaya Thaveesangsakulthai ◽  
Mark Kristan Espejo Cabello ◽  
Chadin Kulsing ◽  
Hidehiro Sakurai
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Liquid Phase ◽  
Volatile Compounds ◽  
Organic Compounds ◽  
Chiral Recognition ◽  
Selective Extraction ◽  
Gas Chromatography Mass Spectrometry ◽  
Phase Extraction ◽  
Volatile Organic

Chiral cup-shaped trilactams were used as liquid phase extraction material of volatile organic compounds in perfume analyzed by SPME GC-MS. (+)-material showed higher selective chiral recognition with oxygenated and cyclic volatile compounds.

scholarly journals Diagnosis of three different pathogenic microorganisms by gas chromatography-mass spectrometry

F1000Research ◽  
2017 ◽  
Vol 6 ◽  
pp. 1415 ◽  
Author(s):  
Najmeh Karami ◽  
Fateme Mirzajani ◽  
Hassan Rezadoost ◽  
Abdollah Karimi ◽  
Fatemeh Fallah ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Gas Chromatography ◽  
Volatile Organic Compounds ◽  
Respiratory Tract ◽  
Volatile Compounds ◽  
Organic Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Chromatography Mass Spectrometry ◽  
Volatile Organic ◽  
Tract Infections

Background: Diagnoses  of  respiratory  tract  infections  usually happen  in  the  late  phase  of  the  disease  and  usually  result  in  reduction  of  the  pathogen  load after broad-spectrum  antibiotic  therapy,  but  not  in eradication of the pathogen.  The  development  of a  non-invasive,  fast,  and  accurate  method  to  detect  pathogens  has  always  been  of  interest  to  researchers  and  clinicians  alike.  Previous studies have shown that bacteria produce organic gases.  The  current  study  aimed  to  identify  the  volatile  organic  compounds  (VOCs)  produced  by three  respiratory  tract  pathogens,  including  Staphylococcus  aureus,  Escherichia  coli  and  Candida  albicans. Methods: The  volatile  organic  compounds  (VOCs)  produced  were identified by gas chromatography–mass spectrometry(GC-MS), with  prior  collection  of  microbial  volatile  compounds  using  solid  phase  microextraction  (SPME)  fiber.  The volatile compounds were collected by obtaining bacterial headspace samples. Results: Results  showed  that  these  three  organisms  have  various  VOCs,  which  were  analyzed  under  different  conditions.  By ignoring common VOCs, some species-specific VOCs could be detected.  The most important VOC of E. coli was Indole, also some important VOCs produced by S. aureus  were 2,3-Pentandione,  cis-Dihydro-α-terpinyl  acetate,  1-Decyne,  1,3-Heptadiene-3-yne,  2,5-dimethyl  Pyrazine,  Ethyl  butanoate  and  Cyclohexene,4-ethenyl  furthermore,  most  of  identified  compounds  by  C.  albicans are  alcohols. Conclusions: The  detection  of  VOCs  produced  by  infectious  agents  maybe  the  key  to  make   a  rapid  and  precise  diagnosis  of  infection,  but  more  comprehensive  studies  must  be  conducted  in this  regard.

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