Selective Pressurized Liquid Extraction of PCB’s from Food and Feed Samples: Effects of High Lipid Amounts and Lipid Type on Fat Retention

2006 ◽  
Vol 64 (9-10) ◽  
pp. 553-557 ◽  
Author(s):  
S. Sporring ◽  
C. Holst ◽  
E. Björklund
2015 ◽  
Vol 7 (22) ◽  
pp. 9542-9548 ◽  
Author(s):  
Shanjun Song ◽  
Xinhua Dai ◽  
Weihua Wang ◽  
Yajuan He ◽  
Zhao Liu ◽  
...  

SPLE and ultrasonication-assisted QuEChERS were optimized for the analysis of PBDEs in sediments. Both methods were validated by SRMs with good accuracy and precision. Real samples were also analyzed and the results showed both methods practicable for PBDEs determination.


2010 ◽  
Vol 93 (4) ◽  
pp. 1308-1312 ◽  
Author(s):  
Yin-Ping Liu ◽  
Jing-Guang Li ◽  
Yun-Feng Zhao ◽  
Lei Zhang ◽  
Rui Zhou ◽  
...  

Abstract This article reports the applicability of online gel permeation chromatography (GPC)-GC/MS for the determination of seven predominant polybrominated diphenyl ethers (PBDEs) in eggs to effectively eliminate matrix interference. Selective pressurized liquid extraction using acidic alumina as a fat retainer was used for cleanup of the PBDEs in eggs. It was selected because of its advantages: simpler operation, minimum time spent on sample handing to get fat-free extracts, and low volume of solvent consumption. After concentration, the extract was directly injected for online GC/MS operated in the negative ion chemical ionization mode with a 15 m capillary column. Recoveries of spiked samples were between 75.1 and 102.0, with RSDs (n = 3) ranging from 3.6911.47 when spiked at levels of 2 and 20 ng/g, dry mass. The LOD varied from 0.2534 ng/g, dry mass. The proposed method was proven to be rapid, efficient, and reliable for the trace determination of PBDEs in eggs.


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