Potential of gas chromatography-atmospheric pressure chemical ionization-tandem mass spectrometry for screening and quantification of hexabromocyclododecane

A fast method for the screening and quantification of hexabromocyclododecane (sum of all isomers) by gas chromatography using a triple quadrupole mass spectrometer with atmospheric pressure chemical ionization (GC-APCI-QqQ) is proposed. This novel procedure makes use of the soft atmospheric pressure chemical ionization source, which results in less fragmentation of the analyte than by conventional electron impact (EI) and chemical ionization (CI) sources, favoring the formation of the [M - Br] ion and, thus, enhancing sensitivity and selectivity. Detection was based on the consecutive loses of HBr from the [M - Br] ion to form the specific [M - HBr] and [M - HBr] ions, which were selected as quantitation (Q) and qualification (q) transitions, respectively. Parameters affecting ionization and MS/MS detection were studied. Method performance was also evaluated; calibration curves were found linear from 1 pg/μL to 100 pg/μL for the total HBCD concentration; instrumental detection limit was estimated to be 0.10 pg/μL; repeatability and reproducibility, expressed as relative standard deviation, were better than 7 % in both cases. The application to different real samples [polyurethane foam disks (PUFs), food, and marine samples] pointed out a rapid way to identify and allow quantification of this compound together with a number of polybrominated diphenyl ethers (BDE congeners 28, 47, 66, 85, 99, 100, 153, 154, 183, 184, 191, 196, 197, and 209) and two other novel brominated flame retardants [i.e., decabromodiphenyl ethane (DBDPE) and 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE)] because of their presence in the same fraction when performing the usual sample treatment.

Bibliographic Details

Main Authors:	Sales, Carlos, Portolés, T., Sancho, Juan Vicente, Abad Holgado, Esteban, Ábalos, Manuela, Sauló, Jordi, Fiedler, H., Gómara, B., Beltrán, J.
Other Authors:	Generalitat Valenciana
Format:	artículo biblioteca
Published:	Springer 2016
Subjects:	Atmospheric pressure chemical ionization, Brominated flame retardants, Polyurethane foam (PUF) disks, Hexabromocyclododecane, Gas chromatography,
Online Access:	http://hdl.handle.net/10261/136624 http://dx.doi.org/10.13039/501100003359 http://dx.doi.org/10.13039/501100003329 http://dx.doi.org/10.13039/501100000780
Tags:	Add Tag No Tags, Be the first to tag this record!