Optimization of selective pressurized liquid extraction and ultrasonication-assisted QuEChERS methods for the determination of polybrominated diphenyl ethers in sediments

2015 ◽  
Vol 7 (22) ◽  
pp. 9542-9548 ◽  
Author(s):  
Shanjun Song ◽  
Xinhua Dai ◽  
Weihua Wang ◽  
Yajuan He ◽  
Zhao Liu ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Good Accuracy ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Real Samples ◽  
Accuracy And Precision ◽  
Diphenyl Ethers ◽  
Selective Pressurized Liquid Extraction

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.

scholarly journals Fast Analysis of Polybrominated Diphenyl Ethers in Eggs Using Selective Pressurized Liquid Extraction Coupled with Online GPC-GC/MS

2010 ◽  
Vol 93 (4) ◽  
pp. 1308-1312 ◽  
Author(s):  
Yin-Ping Liu ◽  
Jing-Guang Li ◽  
Yun-Feng Zhao ◽  
Lei Zhang ◽  
Rui Zhou ◽  
...  
Keyword(s):  
Polybrominated Diphenyl Ethers ◽  
Gel Permeation Chromatography ◽  
Dry Mass ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Negative Ion ◽  
Fast Analysis ◽  
Diphenyl Ethers ◽  
Selective Pressurized Liquid Extraction

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.

In-cell clean-up pressurized liquid extraction for the analysis of brominated diphenyl ethers in sewage sludge by GC-NCI-MS

2019 ◽  
Vol 11 (11) ◽  
pp. 1483-1490
Author(s):  
Qian Zhang ◽  
Yuanyuan Liu ◽  
Guilin Han ◽  
Tao Liang ◽  
Chukwunonso Peter Okoli
Keyword(s):  
Sewage Sludge ◽  
Simultaneous Determination ◽  
Liquid Extraction ◽  
Pressurized Liquid Extraction ◽  
Brominated Diphenyl Ethers ◽  
Diphenyl Ethers ◽  
Sensitive Method

An automated and sensitive method based on in-cell clean-up pressurized liquid extraction (PLE) was developed and validated for the simultaneous determination of 14 brominated diphenyl ethers in sewage sludge samples.

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