PMID- 26749867
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20160122
LR  - 20190923
IS  - 1000-8713 (Print)
IS  - 1000-8713 (Linking)
VI  - 33
IP  - 8
DP  - 2015 Aug
TI  - [Determination of eight polybrominated diphenyl ethers in marine sediments by 
      ultrasonically assisted alkaline degradation extraction and gas 
      chromatography-electron capture detection].
PG  - 885-91
AB  - For determination of the eight polybrominated diphenyl ethers (PBDEs) in marine 
      sediments based on gas chromatography-electron capture detection (GC-ECD), a 
      rapid and effective method for simultaneous sample extraction and purification 
      was developed, in which ultrasonically assisted alkaline hydrolysis was combined 
      with solvent extraction. The sediment sample was processed in an ultrasonic bath 
      in 2. 00 mol/L NaOH-methanol solution for 30 min, and subsequently extracted by 
      n-hexane. The organic phase was then separated and purified by silica column and 
      concentrated to 100 microL for GC-ECD analysis. Under the optimized conditions, the 
      recoveries and relative standard deviations (RSDs) for eight PBDE congeners 
      ranged from 63.6% to 110.3% and from 1.7% to 10.5% (n = 5), respectively. The 
      limits of detection (LODs, S/N = 3) ranged from 0.002 to 0.011 ng/g except for 
      deca-brominated diphenyl ether (BDE-209), which was 0.097 ng/g. With high 
      accuracy, good stability and adequate recovery, the established method was 
      successfully applied to the analysis of PBDEs in the surface sediments from Bohai 
      Sea. The concentrations of  summation operator8PBDEs (sum of 2,4,4'-tribromodiphenyl ether 
      (BDE-28), 2,2',4,4'-tetrabromodiphenyl ether (BDE-47), 2, 2', 4, 4', 
      5-pentabromodiphenyl ether (BDE-99), 2, 2', 4, 4', 6-pentabromodiphenyl ether 
      (BDE100), 2, 2', 4, 4', 5, 5'- 1.566 to 6.760 ng/g and from 1.461 to 6.438 ng/g, 
      respectively. A decreasing gradient of concentration was basically observed with 
      increasing distance off the shore, indicating that anthropogenic activities, 
      surface runoff and river inputs may be the sources of PBDEs in the sediments from 
      Bohai Sea.
FAU - Guoguang, Wang
AU  - Guoguang W
FAU - Dahai, Zhang
AU  - Dahai Z
FAU - Dandan, Yang
AU  - Dandan Y
FAU - Jialin, Peng
AU  - Jialin P
FAU - Xianguo, Li
AU  - Xianguo L
LA  - chi
PT  - English Abstract
PT  - Journal Article
PL  - China
TA  - Se Pu
JT  - Se pu = Chinese journal of chromatography
JID - 9424804
EDAT- 2016/01/12 06:00
MHDA- 2016/01/12 06:01
CRDT- 2016/01/12 06:00
PHST- 2016/01/12 06:00 [entrez]
PHST- 2016/01/12 06:00 [pubmed]
PHST- 2016/01/12 06:01 [medline]
AID - 10.3724/sp.j.1123.2015.04025 [doi]
PST - ppublish
SO  - Se Pu. 2015 Aug;33(8):885-91. doi: 10.3724/sp.j.1123.2015.04025.