PYE [2-(1-pyrenyl)ethyldimethylsilylated silica] column HPLC and HR-GC-(micro) ECD in the accurate determination of toxic co-planar PCBs and polybrominated diphenyl ethers (PBDEs) | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

2169288

Reference Type

Journal Article

Title

PYE [2-(1-pyrenyl)ethyldimethylsilylated silica] column HPLC and HR-GC-(micro) ECD in the accurate determination of toxic co-planar PCBs and polybrominated diphenyl ethers (PBDEs)

Author(s)

Kannan, N; Hong, SH; Oh, JR; Yim, UH; Li, DH; Shim, WJ

Year

2005

Is Peer Reviewed?

Yes

Journal

Bulletin of the Korean Chemical Society
ISSN: 0253-2964
EISSN: 1229-5949

Publisher

Korean Chemical Society

Location

WEINHEIM

Volume

Issue

Page Numbers

529-536

Language

English

DOI

10.5012/bkcs.2005.26.4.529

Web of Science Id

WOS:000229085700003

Abstract

Measurement of toxicologically relevant polychlorinated biphenyl (PCB) congeners such as non-ortho (IUPAC#) 77, 81, 126, 169 and mono-ortho 105, 114, 118, 123, 156, 157, 189 and di-ortho 170, 180 and polybrominated diphenyl ethers (PBDEs) such as 47, 66, 85. 99, 100, 138, 153, 154 in environmental samples become almost mandatory in several countries now. However, most of the available methods involve expensive instrumentations such as HRGC-HRMS or ECNI-LRMS, apart from expensive extraction and clean-up (with large volume of solvents) steps. A method has been devised combining the analytical separation power of PYE [2-(1-pyrenyl)ethyldimethysilylated silica] Column HPLC and high-resolution gas chromatographic techniques including micro-electron capture detection (ECD) and two dimensional gas chromatograpy-ECD techniques to determine these eco-toxic substances at parts-per-trillion (ppt) levels. This combination resolves co-elution of congeners that occur in disproportionate ratios (e.g. CB- 110 and -77) and allows accurate congener-specific determination of target compounds. This method is cost effective as it requires only hexane, that in small quantities (10 mL) and GC-ECD. The elution and analysis time are optimized to less man hours. This method is effectively utilized in the analysis of co-planar PCBs and PBDEs from archived solvent extracts of samples previously analyzed for pesticides and PCBs. Structure based separation of contaminant classes improves GC-ECD determination at ppt levels.

Keywords

PYE [2-(1-pyrenyl)ethyldimethylsilylated silica] column HPLC; coplanar PCBs; MDGC-ECD; PBDEs; coastal monitoring