Optimisation of the analytical method for octa-, nona- and deca-brominated diphenyl ethers using gas chromatography–quadrupole mass spectrometry and isotope dilution

Eguchi, A and Isobe, S and Ramu, Karri and Tanabe, S (2011) Optimisation of the analytical method for octa-, nona- and deca-brominated diphenyl ethers using gas chromatography–quadrupole mass spectrometry and isotope dilution. International Journal of Environmental Analytical Chemistry, 91 (4). pp. 348-356. ISSN 0306-7319

PDF - Published Version Restricted to ICRISAT users only Download (174kB) | Request a copy

Abstract

An analytical method for higher brominated congeners of polybrominated diphenyl ethers (PBDEs) was optimised using a gas chromatograph equipped with an electron impact ionisation-quadrupole mass spectrometer (GC-EI-qMS) and five native PBDEs and three 13C12-labelled congeners in biological and environmental samples (mussels, sediment, dust). In the optimised instrumental conditions, abundance and repeatability improved with increase in temperature of the ion source. The instrumental detection limits (IDLs) for BDE-196, BDE-197, BDE-206, BDE-207 and BDE-209 were 0.1, 0.1, 0.2, 0.3 and 0.6 pg, respectively. When compared to the previous reports, the IDLs were the same as for electron capture negative ionisation (ECNI) or EI-double focusing magnetic sector (EI-Sector) mass spectrometer, indicating that sensitive determination could be achieved using a conventional GC-EI-qMS. Validation of the method was carried out by the analysis of reference materials and mussel samples. We confirmed that the concentrations quantified using this method was in the range of reported values for reference materials. Similar concentrations were found in mussels, which were analysed previously by our group. Thus, we conclude that a conventional GC-EI-qMS can be applied for analysis of higher brominated PBDEs in various environmental and biota matrices.

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	gas chromatography-quadrupole mass spectrometry, BDE-209, electron impact ionisation
Subjects:	Others > Fertilizer Applications
Depositing User:	Mr Siva Shankar
Date Deposited:	10 Feb 2012 08:43
Last Modified:	16 Sep 2013 07:30
URI:	http://oar.icrisat.org/id/eprint/5439
Official URL:	http://www.tandfonline.com/toc/geac20/current
Projects:	UNSPECIFIED
Funders:	Global COE Program
Acknowledgement:	This study was supported by Global COE Program and Grants-in-Aid for Scientific Research (S: 20221003, Young Scientists B: 19780239) of the Ministry of Education, Culture, Sports, Science and Technology, Japan (MEXT) and Japan Society for the Promotion of Science (JSPS). This research was partly supported by MEXT’s program ‘Promotion of Environmental Improvement for Independence of Young Researchers’ under the Special Coordination Funds for Promoting Science and Technology.
Links:	Author

View Statistics

Actions (login required)

View Item