Development, validation and application of a method to analyze phenols in water samples by solid phase micro extraction-gas chromatography-flame ionization detector

2007 ◽  
Vol 42 (5) ◽  
pp. 491-498 ◽  
Author(s):  
Fernando M. Lanças ◽  
Igor R. B. Olivares ◽  
Priscila M. Alves
2015 ◽  
Vol 12 (2) ◽  
pp. 67
Author(s):  
Nurlaila Ismail ◽  
Mastura Lbrahim ◽  
Seema Zareen ◽  
Mohd Hezri Fazalul Rahiman ◽  
Saiful Nizam Tajuddin ◽  
...  

This paper presents the application of Solid Phase Micro Extraction (SPME) coupled with Gas Chromatography-Mass Spectrometry (GC-MS) and Gas Chromatography-Flame Ionization Detector (GC-FID) to charaterize agarwood incense. The work involved three types of SPME fibres at 30 minutes sampling time. The fibres are 50/30 µm divinylbenzene-carboxen­polydimethysiloxane (DVB-CAR-PDMS), 65 µm polydi methylsiloxane­divinylbenzene (PDMS-DVB) and 85 µm carboxen-polydimethyl siloxane (CAR-PDMS). The results showed that among many compounds extracted by GC-MS coupled with SPME, six compounds were found significantly presence in high quality aganvood incense due to their high percentage area (%). They are beta-maaliene, alpha-elemol, beta-selinene, 10-epi-gamma-eudesmol, agarospirol and caryophellene oxide. The finding offers a new approach for establishing the volatile profile of agarwood incense components which is beneficial for agarwood grading and discrimination.


2015 ◽  
Vol 12 (2) ◽  
pp. 67
Author(s):  
Nurlaila Ismail ◽  
Mastura Lbrahim ◽  
Seema Zareen ◽  
Mohd Hezri Fazalul Rahiman ◽  
Saiful Nizam Tajuddin ◽  
...  

This paper presents the application of Solid Phase Micro Extraction (SPME) coupled with Gas Chromatography-Mass Spectrometry (GC-MS) and Gas Chromatography-Flame Ionization Detector (GC-FID) to charaterize agarwood incense. The work involved three types of SPME fibres at 30 minutes sampling time. The fibres are 50/30 µm divinylbenzene-carboxen­polydimethysiloxane (DVB-CAR-PDMS), 65 µm polydimethylsiloxane­divinylbenzene (PDMS-DVB) and 85 µm carboxen-polydimethyl siloxane (CAR-PD MS). The results showed that among many compounds extracted by GC-MS coupled with SPME, six compounds were found significantly presence in high quality aganvood incense due to their high percentage area(%). They are b-maaliene, a-elemol, b-selinene, 10-epi-y-eudesmol, agarospirol and caryophellene oxide. The finding offers a new approach for establishing the volatile profile of agarwood incense components which is beneficial for agarwood grading and discrimination. 


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