Determination of brominated flame retardants including polybrominated diphenyl ethers, pentabromoethylbenzene, hexabromobiphenyl, and decabromodiphenyl ethane in sediment samples: Validation of a rapid and efficient clean-up method and application to a sediment core from Lake Biwa, Japan

被引：6

作者：

Anh Quoc Hoang ^{[1
,2
]}

Aono, Daichi ^{[1
]}

Kawashima, Ayato ^{[1
]}

Hamada, Noriaki ^{[1
]}

Falahudin, Dede ^{[1
,3
]}

Watanabe, Isao ^{[1
]}

Tsugeki, Narumi K. ^{[4
]}

Kuwae, Michinobu ^{[5
]}

Takahashi, Shin ^{[1
]}

机构：

[1] Ehime Univ, Grad Sch Agr, 3-5-7 Tarurni, Matsuyarna 7908566, Japan

[2] Vietnam Natl Univ, Univ Sci, Fac Chem, 19 Le Thanh Tong, Hanoi 10000, Vietnam

[3] Indonesian Inst Sci LIPI, Res Ctr Oceanog, Jl Pasir Putih 1, Jakarta 14430, Indonesia

[4] Matsuyama Univ, Fac Law, 4-2 Bunkyo Cho, Matsuyama, Ehime 7908578, Japan

[5] Ehime Univ, Ctr Marine Environm Studies CMES, 2-5 Bunkyo Cho, Matsuyama, Ehime 7908577, Japan

来源：

CHEMOSPHERE | 2021年 / 281卷

基金：

日本学术振兴会;

关键词：

PBDEs; DBDPE; Sediment; Rapid clean-up method; Lake biwa; POLYCHLORINATED-BIPHENYLS; PBDES; RIVER; ACCUMULATION; PROFILES; EMISSION;

D O I：

10.1016/j.chemosphere.2021.130867

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The development of rapid and efficient analytical method for the determination of legacy and current-use brominated flame retardants (BFRs) has been performed due to environmental concern related to these pollutants. In the present study, we used an automated clean-up device equipped with pre-packed micro-column sets (containing sulfuric acid impregnated silica gel and silver-modified alumina) to develop an effective purification method for polybrominated diphenyl ethers (PBDEs), pentabromoethylbenzene, hexabromobiphenyl, and decabromodiphenyl ethane (DBDPE) in sediment extracts. Matrix-spiked sediments (n = 6) and the Standard Reference Material (R) 1944 samples (n = 6) were tested. Our method showed acceptable accuracy, repeatability, and sensitivity for almost all the target compounds with reduced processing time, labor requirement, and solvent amounts as compared to conventional clean-up method (e.g., sulfuric acid treatment and self-packed chromatographic columns). The validated method was applied to sediment core samples (n = 16) collected in 2019 from Lake Biwa, the largest lake in Japan. PBDEs were detected in sediment samples of 0-13 cm depth (dated between 1990 and 2019) at relatively low concentrations (median 5.7; range 2.6-9.4 ng/g dry weight). PBDE profiles were dominated by BDE-209, which accounted for 91 +/- 10% of total PBDEs. Among other BFRs, only DBDPE was found in sediment layers of 0-9 cm depth (deposited between 2005 and 2019). DBDPE concentrations ranged from 0.43 to 1.6 (median 0.71) ng/g and showed increasing trend toward shallower depths.

引用

页数：9