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Evaluation of a high‐resolution gas chromatography/high‐resolution mass spectrometry method for the determination of 2,3,7,8‐tetrachlorodibenzo‐ p ‐dioxin in soil and water
Author(s) -
Stanley John S.,
Sack Thomas M.,
Tondeur Yves,
Beckert Werner F.
Publication year - 1988
Publication title -
biomedical and environmental mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.475
H-Index - 121
eISSN - 1096-9888
pISSN - 0887-6134
DOI - 10.1002/bms.1200170108
Subject(s) - chemistry , chromatography , mass spectrometry , resolution (logic) , gas chromatography , detection limit , gas chromatography–mass spectrometry , soil test , aqueous solution , high resolution , analytical chemistry (journal) , soil water , environmental science , geology , remote sensing , artificial intelligence , computer science , soil science
An analytical protocol for the determination of 2,3,7,8‐tetrachlorodibenzo‐ p ‐dioxin (2,3,7,8‐TCDD) and total TCDDs in soil, sediment, and aqueous samples using high‐resolution gas chromatography/high‐resolution mass spectrometry (HRGC/HRMS) was evaluated through replicate analyses of fortified and unspiked soil and aqueous samples. The results of these analyses demonstrated that the method is useful for the determination of 2,3,7,8‐TCDD and total TCDDs at concentrations ranging from 10 to 200 pg/g (ppt) in soil samples and from 100 to 2000 pg/l (ppq) in aqueous samples. Absolute recoveries of the method internal standard, ( 13 C 12 ‐2,3,7,8‐TCDD, ranged from 24 to 88%. Lower levels of detection can be achieved through a slight modification of the method with respect to initial sample size and/or final extract volume. Instrumental parameters that affect data quality, specifically HRGC column performance, mass resolution and mass measurement acuracy are presented.