﻿Determination of 2,4,6-trichloroanisole and 2,4,6-tribromoanisole on ng L-1 to pg L-1 levels in wine by soild-phase microextraction and gas chromatography-high-resolution mass spectrometry﻿

Determination of 2,4,6-trichloroanisole and 2,4,6-tribromoanisole on ng L-1 to pg L-1 levels in wine by soild-phase microextraction and gas chromatography-high-resolution mass spectrometry

Jönsson, Sofie (author): Örebro universitet,Institutionen för naturvetenskap

Uusitalo, Terhi (author)

van Bavel, Bert (author): Örebro universitet,Institutionen för naturvetenskap

Gustafsson, Inga-Britt (author): Örebro universitet,Institutionen för restaurang- och måltidskunskap

Lindström, Gunilla (author): Örebro universitet,Institutionen för naturvetenskap

(creator_code:org_t)

Elsevier BV, 2006
2006
English.
In: Journal of Chromatography A. - : Elsevier BV. - 0021-9673 .- 1873-3778. ; 1111:1, s. 71-75

Related links:: https://urn.kb.se/re...; show more...; https://doi.org/10.1...; show less...

Abstract Subject headings

A gas chromatography-high-resolution mass spectrometry (GC-HRMS) method using solid-phase microextraction (SPME) for the determination of 2,4,6-trichloroanisole (TCA) and 2,4,6-tribromoanisole (TBA) in wine at low ng L−1 levels was developed. A robust SPME method was developed by optimizing several different parameters, including type of fiber, salt addition, sample volume, extraction and desorption time. The quantification limit for TCA and TBA in wine was lowered substantially using GC-HRMS in combination with the optimized SPME method and allowed the detection of low analyte concentrations (ng L−1) with good accuracy. Limits of quantification for red wine of 0.3 ng L−1 for TCA and 0.2 ng L−1 for TBA with gas chromatography-negative chemical ionization mass spectrometry and 0.03 ng L−1 for TCA and TBA were achieved using GC-HRMS. The method was applied to 30 wines of which 4 wines were sensorically qualified as cork defected. TCA was found in three of these wines with concentrations in the range 2–25 ng L−1. TBA was not detected in any of the samples.

By the author/editor: Jönsson, Sofie; Uusitalo, Terhi; van Bavel, Bert; Gustafsson, Inga ...; Lindström, Gunil ...

About the subject

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