Separation of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo-furans in environmental samples using silica gel and florisil fractionation chromatography

Liu, Hanxia; Zhang, Qinghua; Cai, Zongwei; Liu, An; Wang, Yawei; Jiang, Guibin

doi:10.1016/j.aca.2005.10.001

Cited by 76 publications

(44 citation statements)

References 22 publications

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“…Helium was used as carrier gas with a constant flow of 1.2 ml min À1 . Details of MS analysis and quality control have been described elsewhere (Liu et al, 2006a).…”

Section: Sample Analysis Proceduresmentioning

confidence: 99%

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

et al. 2007

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The pollution status of polychlorinated dibenzo-p-dioxins, dibenzofurans (PCDD/Fs) and polychlorinated biphenyls (PCBs) in the sediments of Haihe River, which is the most polluted among the seven largest basins in China, Dagu Drainage River flowing through a chemical industry zone, and two other rivers flowing into Bohai Sea in Tianjin City, China were investigated. The concentrations of PCDD/Fs and PCBs in the sediments from the mainstream of Haihe River were 1.3-26 pg I-TEQ g À1 dry weight (dw) and 0.07-0.54 pg TEQ g À1 dw, respectively. Heavy PCDD/Fs and PCBs pollution, with 1264 pg I-TEQ g À1 dw and 21 pg TEQ g À1 dw, was found in sediment from Dagu Drainage River. The congener profiles of PCDD/Fs indicated that the principal contamination source was the production of pentachlorophenol (PCP) or PCP-Na in this area. The correlation between PCDD/Fs or PCBs and total organic matter (TOM) showed that PCDD/Fs or PCBs were independent on TOM.

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“…Helium was used as carrier gas with a constant flow of 1.2 ml min À1 . Details of MS analysis and quality control have been described elsewhere (Liu et al, 2006a).…”

Section: Sample Analysis Proceduresmentioning

confidence: 99%

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

et al. 2007

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“…Sample extraction, cleanup and chemical analysis followed our previous method with some minor modifications (Liu et al, 2006). Detailed procedures were given in the Supplementary material.…”

Section: Sample Extraction and Analysismentioning

confidence: 99%

PBDEs, PCBs and PCDD/Fs in the sediments from seven major river basins in China: Occurrence, congener profile and spatial tendency

Wang

Shang

et al. 2016

Chemosphere

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“…Prior to use, silica gel and anhydrous sodium sulfate were heated at 550 • C for 12 h and 660 • C for 6 h, respectively. The preparation of acid silica gel and basic silica gel was described in our previous work [33]. In brief, acid silica gel was prepared from activated silica gel impregnated with 30% (w/w) concentrated H 2 SO 4 , and basic silica gel by activated silica gel impregnated with 1.2% (w/w) NaOH (1 mol L −1 solution).…”

Section: Chemicalsmentioning

confidence: 99%

Evaluation of Soxhlet extraction, accelerated solvent extraction and microwave-assisted extraction for the determination of polychlorinated biphenyls and polybrominated diphenyl ethers in soil and fish samples

Wang

Zhang

Wang

et al. 2010

Analytica Chimica Acta

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163

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a b s t r a c tThree commonly applied extraction techniques for persistent organic chemicals, Soxhlet extraction (SE), accelerated solvent extraction (ASE) and microwave-assisted extraction (MAE), were applied on soil and fish samples in order to evaluate their performances. For both PCBs and PBDEs, the two more recent developed techniques (ASE and MAE) were in general capable of producing comparable extraction results as the classical SE, and even higher extraction recoveries were obtained for some PCB congeners with large octanol-water partitioning coefficients (K ow ). This relatively uniform extraction results from ASE and MAE indicated that elevated temperature and pressure are favorable to the efficient extraction of PCBs from the solid matrices. For PBDEs, difference between the results from MAE and ASE (or SE) suggests that the MAE extraction condition needs to be carefully optimized according to the characteristics of the matrix and analyte to avoid degradation of higher brominated BDE congeners and improve the extraction yields.

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Separation of polybrominated diphenyl ethers, polychlorinated biphenyls, polychlorinated dibenzo-p-dioxins and dibenzo-furans in environmental samples using silica gel and florisil fractionation chromatography

Cited by 76 publications

References 22 publications

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

Occurrence of polychlorinated dibenzo-p-dioxins, dibenzofurans and biphenyls pollution in sediments from the Haihe River and Dagu Drainage River in Tianjin City, China

PBDEs, PCBs and PCDD/Fs in the sediments from seven major river basins in China: Occurrence, congener profile and spatial tendency

Evaluation of Soxhlet extraction, accelerated solvent extraction and microwave-assisted extraction for the determination of polychlorinated biphenyls and polybrominated diphenyl ethers in soil and fish samples

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