Figure1 2,3,7,8-Tetrachlorodibenzodioxin resolved fromotherTCDDcongeners,using
anRtx®-Dioxin2column.
.
ResolutionofPCDDsandPCDFsbyChlorinationLevel
Extracted ionprofiles of quantitative native PCDDs andPCDFs, andwindowdefiner compounds are
shown inFigure 3 andFigure 4. The tetra- throughoctachlorodibenzodioxin compounds are chro-
matographically separatedby chlorination level. The tetrachlorodibenzofurans are chromatographi-
cally separatedby chlorination level, except for 1,2,8,9-tetrachlorodibenzofuran and 1,3,4,6,8-pen-
tachlorodibenzofuran,which exhibit a slight windowoverlap.
Conclusion
TheRtx®-Dioxin2 column is an excellent column for the analysis of dioxin and furan congeners. It has a
unique selectivity for the toxic PCDDs and PCDFs, including specificity for 2,3,7,8-TCDD and 2,3,7,8-
TCDF.
Acknowledgment
Chromatograms and data courtesy of Karen MacPherson and Eric Reiner, Ontario Ministry of the
Environment,Toronto,Ontario,Canada.
also
available
Rxi
™
-5msGCColumns!
These new industry-leading
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have the selectivity and life-
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using the 5% diphenyl / 95%
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Figure2TetrachlorodibenzofurancongenersonanRtx®-Dioxin2column.
Other peak identifications available upon request.
2367
1269
3467
2378
2347
2348
TCDF
1237
1238
1239
1278
1267
1289
2378
TCDD
Column:
Rtx-Dioxin®2, 60m,
0.25mm ID, 0.25µm
(cat.# 10758)
Sample:
WMS-01 ReferenceMaterial,
Wellington Laboratories
Inj.:
Splitless
Inj. temp.: 250°C
Carrier gas: helium, constant flow
Flow rate: 1.5mL/min.
Oven temp.: 130°C (hold 1.0min.) to 200°C
@ 40°C/min. to 235°C@
3.0°C/min. to 300°C@
5°C/min. (hold 10min.).
Det.:
Micromass Ultima high-
resolutionmass spectrometer
Ionization: EI
Mode:
SIR
Other peak identifications available upon request.
Column:
Rtx-Dioxin®2, 60m,
0.25mm ID, 0.25µm
(cat.# 10758)
Sample:
WMS-01 ReferenceMaterial,
Wellington Laboratories
Inj.:
Splitless
Inj. temp.: 250°C
Carrier gas: helium, constant flow
Flow rate: 1.5mL/min.
Oven temp.: 130°C (hold 1.0min.) to 200°C
@ 40°C/min. to 235°C@
3.0°C/min. to 300°C@
5°C/min. (hold 10min.).
Det.:
Micromass Ultima high-
resolutionmass spectrometer
Ionization: EI
Mode:
SIR
