Suitability of polydimethylsiloxane rods for the headspace sorptive extraction of polybrominated diphenyl ethers from water samples

2007 ◽  
Vol 1143 (1-2) ◽  
pp. 41-47 ◽  
Author(s):  
R. Montes ◽  
I. Rodríguez ◽  
E. Rubí ◽  
R. Cela
Keyword(s):  
Water Samples ◽  
Polybrominated Diphenyl Ethers ◽  
Sorptive Extraction ◽  
Diphenyl Ethers

scholarly journals Occurrence, Compositional Profiles and Health Risks of Polybrominated Diphenyl Ethers (PBDEs) in Leachate and Groundwater in and around Dumpsites in Lagos State, Nigeria

2021 ◽  
Author(s):  
Olanrewaju Olujimi ◽  
Kabirat Adegbite ◽  
Samuel Sojinu ◽  
Adegbenro Daso ◽  
Funmilola Oyebanji ◽  
...  
Keyword(s):  
Water Samples ◽  
Polybrominated Diphenyl Ethers ◽  
Endocrine Disrupting Chemicals ◽  
Elevated Concentration ◽  
Spectroscopy Analysis ◽  
Endocrine Disrupting ◽  
Lagos State ◽  
Diphenyl Ethers ◽  
Gas Chromatography Mass Spectroscopy ◽  
Bde 209

Abstract Groundwater from the communities adjoining Abule Egba (ABE), Epe (EPE), Ikorodu (IKR), Olushosun (OSH) and Solous (SOL) dumpsites in Lagos State, Nigeria were collected and analyzed for Polybrominated diphenyl ethers. Water samples were extracted using liquid-liquid extraction followed by Gas Chromatography/Mass Spectroscopy analysis using already validated standard method. PBDEs concentrations ranged from 7.1 ± 10.1 (IKR) to 78 ± 109 µgL-1 (ABE) for BDE 28; 5.4 ± 0.3 (OSH) to 31.5 ± 27.3 µgL-1 (ABE) for BDE 47; 17 ± 24 (ABE) to 183 ± 226 µgL-1 for BDE 100; 11.7 ± 16.5 (ABE) to 174 ± 217 µgL-1(EPE) for BDE 99; 117 ± 166 (ABE) to 2034 ± 2819 µg L-1 (EPE) for BDE 183; 296 ± 392 (IKR) to 4283 ± 1278 µg L-1 (EPE) for BDE 209. BDE 153 and BDE 154 were not detected in all the water samples while BDE 28 was only detected in ABE and IKR water samples. The BDE 209 was the most dominant congener in all the water samples. The cumulative HI values for children through ingestion route ranged from 4.95 E+00 (SOL) to 4.53 E+01 (EPE) while in adult, it ranged from 4.25 E+00 (SOL) to 3.88 E+01 (EPE). This study confirmed the presence of PBDEs at elevated concentration in groundwater. Since there is no regular supply of pipe-borne water in the study area, residents consume the contaminated groundwater and may therefore be exposed to endocrine disrupting chemicals. Government should provide pie-borne water for the populace and discourage people from living close to the dumpsites.

scholarly journals Determination of Polybrominated Diphenyl Ethers in Water Samples Using Effervescent-Assisted Dispersive Liquid-Liquid Icroextraction with Solidification of the Aqueous Phase

Molecules ◽  
2021 ◽  
Vol 26 (5) ◽  
pp. 1376
Author(s):  
Yue Wang ◽  
Qicai Zhang ◽  
Shanshan Chen ◽  
Lin Cheng ◽  
Xu Jing ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Aqueous Phase ◽  
Water Samples ◽  
Polybrominated Diphenyl Ethers ◽  
Internal Standard ◽  
Environmental Water ◽  
Environmental Water Samples ◽  
Relative Standard ◽  
Diphenyl Ethers

An effective and sensitive method is necessary for the determination of polybrominated diphenyl ethers (PBDEs) pollutants in water. In this study, effervescent-assisted dispersive liquid-liquid microextraction with solidification of the aqueous phase (EA-DLLME-SAP), followed by Gas Chromatography-Tandem Mass Spectrometry (GC-MS-MS) quantitative analysis, was established for the preconcentration and determination of PBDEs in real environmental water samples. 1,1,2,2-Tetrachloroethane was used as the extractant and directly dispersed into the water phase of the aqueous samples with the aid of a large number of carbon dioxide bubbles generated via the acid-base reaction of acetic acid and sodium bicarbonate, which did not require the use of a dispersant during the extraction process. The key factors affecting the extraction recovery were optimized, and an internal standard was used for quantitative analysis, which gave good linearity ranges of 1–100 ng·L−1 (BDEs 28, 47, 99, and 100), 2–200 ng·L−1 (BDEs 153, 154, and 183) and 5–500 ng·L−1 (BDE 209) with limits of quantification in the range of 1.0–5.0 ng·L−1. The accuracy was verified with relative standard deviations < 8.5% observed in tap, lake, river and reservoir water samples with relative recoveries ranging from 67.2 to 102.6%. The presented method contributes to the determination of PBDEs in environmental water samples.

scholarly journals Occurrence, Levels and Spatial Distribution of Polybrominated Diphenyl Ethers: Case Study of Elemi River in Ado-Ekiti, Nigeria

2021 ◽  
Vol 22 (2) ◽  
pp. 264-272
Author(s):  
Olayinka Abidemi Ibigbami
Keyword(s):  
Gas Chromatography ◽  
Spatial Distribution ◽  
Water Samples ◽  
Polybrominated Diphenyl Ethers ◽  
Chromatography Analysis ◽  
Gas Chromatography Analysis ◽  
Diphenyl Ethers ◽  
The Mean ◽  
Mean Concentration

Polybrominated diphenyl ethers (PBDEs) were seasonally determined in water and sediments of the Elemi River, Nigeria using gas chromatography analysis. Samples were collected in two consecutive seasons for six months, monitoring the program every month. Three BDEs congeners (28, 47 and 154) were only detected with the mean concentration of ND - 0.001 µg/L and ND - 0.143 µg/kg in water and sediments, respectively. BDEs (99, 100, 153, 183 and 209) were consistently absent in both seasons. The distribution of BDEs showed that BDE 28 was consistently found in the water samples throughout the months of sampling, while the sediments sparingly contained BDE 28 and 47. The study proposed the need for effective measures to reduce the deleterious contribution of these persistent compounds into the rivers.

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