Simultaneous Determination of Seven Polycyclic Aromatic Hydrocarbons in Coffee Samples Using Effective Microwave-Assisted Extraction and Microextraction Method Followed by Gas Chromatography-Mass Spectrometry and Method Optimization Using Central Composite Design

2017 ◽  
Vol 11 (3) ◽  
pp. 781-789 ◽  
Author(s):  
Mahdie Kamalabadi ◽  
Abdorreza Mohammadi ◽  
Naader Alizadeh
2017 ◽  
Vol 9 (44) ◽  
pp. 6246-6253 ◽  
Author(s):  
Reza Rostampour ◽  
Mahdie Kamalabadi ◽  
Marzieh Kamankesh ◽  
Zahra Hadian ◽  
Sahar Jazaeri ◽  
...  

Microwave-assisted extraction and dispersive liquid–liquid microextraction (MAE–DLLME) coupled with GC-MS allowed the simultaneous determination of 16 polycyclic aromatic hydrocarbons (PAHs) in bread samples.


2010 ◽  
Vol 75 (6) ◽  
pp. 803-812 ◽  
Author(s):  
Snezana Kravic ◽  
Zvonimir Suturovic ◽  
Jaroslava Svarc-Gajic ◽  
Zorica Stojanovic ◽  
Mira Pucarevic

A sample preparation method based on the simultaneous microwave-assisted extraction-esterification (SMAEE) was developed for the determination of the fatty acid composition of foodstuffs by gas chromatography-mass spectrometry. The proposed sample preparation method was validated by comparison with the reference Soxhlet extraction method followed by derivatisation by ester formation and the same determination step. The fatty acid compositions and the extraction efficiencies obtained using the proposed SMAEE method and the reference method were statistically similar. The results showed that compared to the conventional method, the SMAEE method offered the advantages of short sample preparation time, low consumption of expensive organic solvents and lower energy consumption. This good agreement between results provided by both the SMAEE and the reference method demonstrates the usefulness of the former as a routine method for the treatment of food samples prior to trans fatty analysis.


Sign in / Sign up

Export Citation Format

Share Document