TY - JOUR
T1 - Comparison of stir bar sorptive extraction and solid-phase microextraction to determine halophenols and haloanisoles by gas chromatography-ionj trap tandem spctrometry
AU - Maggi, Luana
AU - Mazzoleni, Valeria
PY - 2008
Y1 - 2008
N2 - Solid-phase microextraction by immersion (IS-SPME) and headspace mode (HS-SPME), together with stir bar sorptive extraction (SBSE), have
been assayed in combination with gas chromatography–ion trap tandem mass spectrometry (MS/MS) for analysing 2,4,6-trichlorophenol, 2,3,4,6-
tetrachlorophenol, 2,4,6-tribromophenol, 2,4,6-trichloroanisole, 2,3,4,6-tetrachloroanisole and 2,4,6-tribromoanisole in different liquid matrices.
Once, the optimization of MS/MS fragmentation analysis was carried out, sample enrichment was performed using the three mentioned extraction
methods, and comparison through the determination of linearity, and LOD and LOQs were carried out. SBSE and IS-SPME methods described
enabled us to determine the target compounds at ng/l levels, concentrations lower than their olfactory threshold, which is not the case of HS-SPME.
SBSE showed a higher concentration capability than both SPME techniques, especially when compared to the HS-SPME mode. Thus, SBSE should
be the definitive technique to analyse halophenols and haloanisoles in aqueous matrices. SBSE has been also applied to nine aqueous matrices as
different as tap water, wines or commercial lemon juice extract.
AB - Solid-phase microextraction by immersion (IS-SPME) and headspace mode (HS-SPME), together with stir bar sorptive extraction (SBSE), have
been assayed in combination with gas chromatography–ion trap tandem mass spectrometry (MS/MS) for analysing 2,4,6-trichlorophenol, 2,3,4,6-
tetrachlorophenol, 2,4,6-tribromophenol, 2,4,6-trichloroanisole, 2,3,4,6-tetrachloroanisole and 2,4,6-tribromoanisole in different liquid matrices.
Once, the optimization of MS/MS fragmentation analysis was carried out, sample enrichment was performed using the three mentioned extraction
methods, and comparison through the determination of linearity, and LOD and LOQs were carried out. SBSE and IS-SPME methods described
enabled us to determine the target compounds at ng/l levels, concentrations lower than their olfactory threshold, which is not the case of HS-SPME.
SBSE showed a higher concentration capability than both SPME techniques, especially when compared to the HS-SPME mode. Thus, SBSE should
be the definitive technique to analyse halophenols and haloanisoles in aqueous matrices. SBSE has been also applied to nine aqueous matrices as
different as tap water, wines or commercial lemon juice extract.
KW - 1S-SPME
KW - Aqueous matrices
KW - GC-MS/MS
KW - HS-SPME
KW - SBSE
KW - haloanisoles
KW - halophenols
KW - 1S-SPME
KW - Aqueous matrices
KW - GC-MS/MS
KW - HS-SPME
KW - SBSE
KW - haloanisoles
KW - halophenols
UR - http://hdl.handle.net/10807/16042
U2 - 10.1016/j.talanta.2007.12.013
DO - 10.1016/j.talanta.2007.12.013
M3 - Article
SN - 0039-9140
VL - 75
SP - 753
EP - 759
JO - Talanta
JF - Talanta
ER -